CAT question
ysteve
06-10-2006, 06:00 PM
Hi guys. some body know where i can get cat cheap. And wich not gonna trow P0420. Cause i put 3 month ago direct fit(aftermarket). I reapeat direct fit, and i think there is something wrong with it (like something stuck owethere, like metal something) and plus it thin(you can hear everithing), and noise like lose heat shield. I just wanna put my old one back, then cut it and weld new one. On my old metal is thicker. Just this noises piss me off, and plus i bought pocket code reader to erase every 3-4 days that stupid code P0420. This is crazy you know.I dont wanna put simulators. Steve, 3.4, 2003, 86000.
maxwedge
06-10-2006, 08:07 PM
Hi guys. some body know where i can get cat cheap. And wich not gonna trow P0420. Cause i put 3 month ago direct fit(aftermarket). I reapeat direct fit, and i think there is something wrong with it (like something stuck owethere, like metal something) and plus it thin(you can hear everithing), and noise like lose heat shield. I just wanna put my old one back, then cut it and weld new one. On my old metal is thicker. Just this noises piss me off, and plus i bought pocket code reader to erase every 3-4 days that stupid code P0420. This is crazy you know.I dont wanna put simulators. Steve, 3.4, 2003, 86000.
p0420 may not be the cat, go to batauto.com and do a search for that code there is a good tech article on how to properly diagnose this issue.
p0420 may not be the cat, go to batauto.com and do a search for that code there is a good tech article on how to properly diagnose this issue.
bigrod118
06-10-2006, 08:16 PM
P0420 - Catalyst System Low Efficiency
Show me what cat you bought if you bought it from online. Did you install it or did you have a shop do it? I have never found any aftermarket direct replacements.
As far as the code, you can get rid of it really easily, get an O2 simulator. a couple of places sell them, ZZperformance.com would be the cheapest and best bet, but they were out of stock last time I checked. Otherwise wbodystore.com or PFYC.com have them, little more expensive, but the same thing.
I know for a fact that the ZZP one works, because I have it
Show me what cat you bought if you bought it from online. Did you install it or did you have a shop do it? I have never found any aftermarket direct replacements.
As far as the code, you can get rid of it really easily, get an O2 simulator. a couple of places sell them, ZZperformance.com would be the cheapest and best bet, but they were out of stock last time I checked. Otherwise wbodystore.com or PFYC.com have them, little more expensive, but the same thing.
I know for a fact that the ZZP one works, because I have it
ysteve
06-10-2006, 09:12 PM
About CAT. go to Autopartswarehouse.com(157or something$) and you gonna find direct fit. I dont wanna put simulator (i have it for 30 $) I think something wrong with my cat and plus it trowing me code (this code dosnt mean evap. sys. eff. this mean NON GM CAT) I can bet you that i have problems with power and shifting even if i have new cat. So iam looking for that what gonna work and not gonna trow code. I know my car and i change a lot of stuff. You can check my posts on page before: "Question for everybody(MAF)", "HELP P0420", "LOW POWER" and something else.
ysteve
06-10-2006, 09:19 PM
This guys from JUSTANSWER reply to me
what you can do is take this to a shop that has a diagnostic computer. with this they can watch the o2 sensors to see if they are fluctuating as they should. the code you are getting is that the catalytic converter is Below Threshold.
this means that the catalytic converter is damaged inside like one of the fins is ether bent from the high heat or one or more fins has broken off. if this is the case this will not slow the exhaust to remove the unburnt gases that is the job of the catalytic converter.
aftermarket parts are cheaper and thus not up to OEM standards. you get what you pay for with aftermarket parts
what you can do is take this to a shop that has a diagnostic computer. with this they can watch the o2 sensors to see if they are fluctuating as they should. the code you are getting is that the catalytic converter is Below Threshold.
this means that the catalytic converter is damaged inside like one of the fins is ether bent from the high heat or one or more fins has broken off. if this is the case this will not slow the exhaust to remove the unburnt gases that is the job of the catalytic converter.
aftermarket parts are cheaper and thus not up to OEM standards. you get what you pay for with aftermarket parts
BNaylor
06-11-2006, 11:22 AM
aftermarket parts are cheaper and thus not up to OEM standards. you get what you pay for with aftermarket parts
Evidently he hasn't heard about how crappy OEM GM cat convertors are. :lol:
You have a bad CAT period.
Try the Magnaflow brand hi-flow aftermarket Cat. They work good on a 3.4L or SII 3800. Just make sure it is professionally installed.
Evidently he hasn't heard about how crappy OEM GM cat convertors are. :lol:
You have a bad CAT period.
Try the Magnaflow brand hi-flow aftermarket Cat. They work good on a 3.4L or SII 3800. Just make sure it is professionally installed.
MT-2500
06-11-2006, 12:09 PM
Hi guys. some body know where i can get cat cheap. And wich not gonna trow P0420. Cause i put 3 month ago direct fit(aftermarket). I reapeat direct fit, and i think there is something wrong with it (like something stuck owethere, like metal something) and plus it thin(you can hear everithing), and noise like lose heat shield. I just wanna put my old one back, then cut it and weld new one. On my old metal is thicker. Just this noises piss me off, and plus i bought pocket code reader to erase every 3-4 days that stupid code P0420. This is crazy you know.I dont wanna put simulators. Steve, 3.4, 2003, 86000.
There is a lot of cause and Possibilities on a code 420.
Uner 80k you could have got a free one under emmisions warranty or if in calf. it still may be covered.
Also the one you replace should have some warranty on it.
What brand was it?
If the cat has failed you need to find out why.
May even just be bad OEM cats on the impla but a lot of times to other things cause a cat to fail. Remember cats are hard to kill.
But at 86K you need to go over tune up and engine running stuff real close.
Here is a good link on tthe code 420/430 codes
http://www.troublecodes.net/articles/catfailure/
Also here is some info on them.
DTC P0420, P0421, P0430 & P0431: Check Possible Cause Of Misfire DTC P0420 and P0421 indicates bank one catalyst system efficiency is minimum requirement. DTC P0430 and P0430 indicates bank 2 catalyst system efficiency is minimum requirement. Possible causes are as follows: Use of leaded fuel. Oil contamination. Cylinder misfire. Fuel pressure too high. HO2S sensor improperly connected. Damaged exhaust system component. Faulty ECT sensor. Faulty HO2S. Ensure ignition timing is correct. Retrieve all Continuous Memory DTCs. If misfire code(s) is not present, go to next step. If misfire code(s) is present, isolate cylinder and repair as necessary. Check HO2S Monitor DTCs If DTCs P0136, P0138, P0140, P0141, P0156, P0158, P0160, or P0161 were present in step 1), service as necessary before continuing. If none of these codes are present in step 1), go to next step. Check ECT Sensor DTCs If DTCs P0117, P0118, P0125 or P1117 were present in step 1), service as necessary before continuing. If none of these codes are present in step 1), go to next step. If any codes except P0420, P0421, P0430 and/or P0430 were present in step 1), service as necessary before continuing. If no codes except P0420 and/or P0430 were present in step 1), go to next step. Check Rear HO2S Wiring Harness Turn ignition off. Ensure HO2S wiring harness is correctly routed and connectors are tight. Repair or replace as necessary. If wiring harness and connectors are okay, go to next step. Check Fuel Pressure Turn ignition off. Release fuel pressure. Install fuel pressure gauge. Start engine and allow to idle. Note fuel pressure gauge reading. Increase engine speed to 2500 RPM and maintain for one minute. For fuel pressure specifications, see FUEL PRESSURE SPECIFICATIONS article. If fuel pressure is as specified, go to next step. If fuel pressure is not as specified, go to CIRCUIT TEST HC . Check For Exhaust System Leaks If exhaust system leaks, it may cause catalyst monitor efficiency test to fail. Inspect exhaust system for cracks, loose connections or punctures. Repair or replace as necessary. If exhaust system is okay, go to next step. Check For Exhaust System Restrictions Inspect exhaust system for collapsed areas, dents or excessive bending. Repair or replace as necessary. If exhaust system is okay, go to next step. Ć Check Manifold Vacuum Install tachometer. Connect vacuum gauge to intake manifold vacuum source. Start engine and raise engine speed to 2000 RPM. Manifold vacuum should rise to more than 16 in. Hg. If manifold vacuum is okay, go to next step. If manifold vacuum is low, go to step 11). Leave tachometer and vacuum gauge connected. Start engine and raise engine speed to 2000 RPM. On a non- restricted system, manifold vacuum should quickly rise to normal range as increased RPM is maintained. On a restricted system, manifold vacuum will slowly rise to normal range as increased RPM is maintained. If manifold vacuum is okay, no indication of exhaust leak or restriction has been detected and testing is complete. If manifold vacuum is low or slow to respond, go to next step. Leave tachometer and vacuum gauge connected. Remove exhaust pipe from exhaust manifold. Start engineand raise engine speed to 2000 RPM. If manifold vacuum is now okay, fault is downstream from exhaust manifold. Reconnect exhaust pipe to exhaust manifold and go to next step. If manifold vacuum is still low or slow to respond, fault is in exhaust manifold or intake manifold gasket. Repair or replace as necessary and repeat QUICK TEST. Leave tachometer and vacuum gauge connected. Disconnect muffler/tailpipe assembly from rear of catalytic converter. Start engine and raise engine speed to 2000 RPM. If manifold vacuum is now okay, fault is in muffler/tailpipe assembly. Repair or replace as necessary and test drive vehicle to verify elimination of symptom. If manifold vacuum is still not okay, fault is in catalytic converter. Repair or replace as necessary. Check tailpipe/muffler assembly for debris from catalytic converter. Test drive vehicle to verify elimination of symptom.
There is a lot of cause and Possibilities on a code 420.
Uner 80k you could have got a free one under emmisions warranty or if in calf. it still may be covered.
Also the one you replace should have some warranty on it.
What brand was it?
If the cat has failed you need to find out why.
May even just be bad OEM cats on the impla but a lot of times to other things cause a cat to fail. Remember cats are hard to kill.
But at 86K you need to go over tune up and engine running stuff real close.
Here is a good link on tthe code 420/430 codes
http://www.troublecodes.net/articles/catfailure/
Also here is some info on them.
DTC P0420, P0421, P0430 & P0431: Check Possible Cause Of Misfire DTC P0420 and P0421 indicates bank one catalyst system efficiency is minimum requirement. DTC P0430 and P0430 indicates bank 2 catalyst system efficiency is minimum requirement. Possible causes are as follows: Use of leaded fuel. Oil contamination. Cylinder misfire. Fuel pressure too high. HO2S sensor improperly connected. Damaged exhaust system component. Faulty ECT sensor. Faulty HO2S. Ensure ignition timing is correct. Retrieve all Continuous Memory DTCs. If misfire code(s) is not present, go to next step. If misfire code(s) is present, isolate cylinder and repair as necessary. Check HO2S Monitor DTCs If DTCs P0136, P0138, P0140, P0141, P0156, P0158, P0160, or P0161 were present in step 1), service as necessary before continuing. If none of these codes are present in step 1), go to next step. Check ECT Sensor DTCs If DTCs P0117, P0118, P0125 or P1117 were present in step 1), service as necessary before continuing. If none of these codes are present in step 1), go to next step. If any codes except P0420, P0421, P0430 and/or P0430 were present in step 1), service as necessary before continuing. If no codes except P0420 and/or P0430 were present in step 1), go to next step. Check Rear HO2S Wiring Harness Turn ignition off. Ensure HO2S wiring harness is correctly routed and connectors are tight. Repair or replace as necessary. If wiring harness and connectors are okay, go to next step. Check Fuel Pressure Turn ignition off. Release fuel pressure. Install fuel pressure gauge. Start engine and allow to idle. Note fuel pressure gauge reading. Increase engine speed to 2500 RPM and maintain for one minute. For fuel pressure specifications, see FUEL PRESSURE SPECIFICATIONS article. If fuel pressure is as specified, go to next step. If fuel pressure is not as specified, go to CIRCUIT TEST HC . Check For Exhaust System Leaks If exhaust system leaks, it may cause catalyst monitor efficiency test to fail. Inspect exhaust system for cracks, loose connections or punctures. Repair or replace as necessary. If exhaust system is okay, go to next step. Check For Exhaust System Restrictions Inspect exhaust system for collapsed areas, dents or excessive bending. Repair or replace as necessary. If exhaust system is okay, go to next step. Ć Check Manifold Vacuum Install tachometer. Connect vacuum gauge to intake manifold vacuum source. Start engine and raise engine speed to 2000 RPM. Manifold vacuum should rise to more than 16 in. Hg. If manifold vacuum is okay, go to next step. If manifold vacuum is low, go to step 11). Leave tachometer and vacuum gauge connected. Start engine and raise engine speed to 2000 RPM. On a non- restricted system, manifold vacuum should quickly rise to normal range as increased RPM is maintained. On a restricted system, manifold vacuum will slowly rise to normal range as increased RPM is maintained. If manifold vacuum is okay, no indication of exhaust leak or restriction has been detected and testing is complete. If manifold vacuum is low or slow to respond, go to next step. Leave tachometer and vacuum gauge connected. Remove exhaust pipe from exhaust manifold. Start engineand raise engine speed to 2000 RPM. If manifold vacuum is now okay, fault is downstream from exhaust manifold. Reconnect exhaust pipe to exhaust manifold and go to next step. If manifold vacuum is still low or slow to respond, fault is in exhaust manifold or intake manifold gasket. Repair or replace as necessary and repeat QUICK TEST. Leave tachometer and vacuum gauge connected. Disconnect muffler/tailpipe assembly from rear of catalytic converter. Start engine and raise engine speed to 2000 RPM. If manifold vacuum is now okay, fault is in muffler/tailpipe assembly. Repair or replace as necessary and test drive vehicle to verify elimination of symptom. If manifold vacuum is still not okay, fault is in catalytic converter. Repair or replace as necessary. Check tailpipe/muffler assembly for debris from catalytic converter. Test drive vehicle to verify elimination of symptom.
ysteve
06-11-2006, 12:27 PM
Thank you guys. Mt-2500, my head spining from this reply. I wanna try to put for now on some kind of clamp, is it possible or not, just to check, then if its gonna work iam gonna weld it. On mt-2500 post yes i think i have misffire, but missfire can be from restricted exhaust too. Sparks and wires was changed, also fuel 53-54PSI, air and fuel filter, PCV, EGR was cleand, alternator 15v, not leaking coolant, vacuum around 14-15. I dont see any problem, only maybe i bought sheety CAT or tranny going down. I still wanna try to change cat. Any sites where i can get it and clamps just to check it?
Symptoms: Low power, hard shifting and when traveling around 60MPH trying to accelerate to70MPH should push gas pedal down to the ffloor.
This week my new MAF sensor coming i am gonna try to put it. Cause MAF causing hard shifting and poor acceleration.
Symptoms: Low power, hard shifting and when traveling around 60MPH trying to accelerate to70MPH should push gas pedal down to the ffloor.
This week my new MAF sensor coming i am gonna try to put it. Cause MAF causing hard shifting and poor acceleration.
ysteve
06-11-2006, 12:35 PM
Read this careful. It says tranny shift and Driveability Concerns or SES Lamp ON. I repeat OR (OR) SES light. Looks like sometimes not gonna trow code. And i dont have osciloscop to check it.
A/T - Shift/Driveability Concerns/SES Lamp ON
Bulletin No.: 04-07-30-013A
Date: January 25, 2005
INFORMATION
Subject:
Automatic Transmission Shift, Engine Driveability Concerns or Service Engine Soon (SES) Light On as a Result of the Use of an Excessively/Over-Oiled Aftermarket, Reusable Air Filter
Models:
2005 and Prior GM Cars and Light Duty Trucks
2005 and Prior Saturn Models
Supercede:
This bulletin is being revised to add additional model years and to clarify warranty coverage. Please discard Corporate Bulletin Number 04-07-30-013 (Section 07 - Transmission/Transaxle).
The use of an excessively/over-oiled aftermarket, reusable air filter may result in:
^Service Engine Soon (SES) Light On
^Transmission shift concerns, slipping and damaged clutch(es) or band(s)
^Engine driveability concerns, poor acceleration from a stop, limited engine RPM range
The oil that is used on these air filter elements may be transferred onto the Mass Air Flow (MAF) sensor causing contamination of the sensor. As a result, the Grams per Second (GPS) signal from the MAF may be low and any or all of the concerns listed above may occur.
When servicing a vehicle with any of these concerns, be sure to check for the presence of an aftermarket reusable, excessively/over-oiled air filter. The MAF, GPS reading should be compared to a like vehicle with an OEM air box and filter under the same driving conditions to verify the concern.
The use of an aftermarket reusable air filter DOES NOT void the vehicle's warranty.
If an aftermarket reusable air filter is used, technicians should inspect the MAF sensor element and the air induction hose for contamination of oil prior to making warranty repairs.
Transmission or engine driveability concerns (related to the MAF sensor being contaminated with oil) that are the result of the use of an aftermarket reusable, excessively/over-oiled air filter are not considered to be warrantable repair items.
A/T - Shift/Driveability Concerns/SES Lamp ON
Bulletin No.: 04-07-30-013A
Date: January 25, 2005
INFORMATION
Subject:
Automatic Transmission Shift, Engine Driveability Concerns or Service Engine Soon (SES) Light On as a Result of the Use of an Excessively/Over-Oiled Aftermarket, Reusable Air Filter
Models:
2005 and Prior GM Cars and Light Duty Trucks
2005 and Prior Saturn Models
Supercede:
This bulletin is being revised to add additional model years and to clarify warranty coverage. Please discard Corporate Bulletin Number 04-07-30-013 (Section 07 - Transmission/Transaxle).
The use of an excessively/over-oiled aftermarket, reusable air filter may result in:
^Service Engine Soon (SES) Light On
^Transmission shift concerns, slipping and damaged clutch(es) or band(s)
^Engine driveability concerns, poor acceleration from a stop, limited engine RPM range
The oil that is used on these air filter elements may be transferred onto the Mass Air Flow (MAF) sensor causing contamination of the sensor. As a result, the Grams per Second (GPS) signal from the MAF may be low and any or all of the concerns listed above may occur.
When servicing a vehicle with any of these concerns, be sure to check for the presence of an aftermarket reusable, excessively/over-oiled air filter. The MAF, GPS reading should be compared to a like vehicle with an OEM air box and filter under the same driving conditions to verify the concern.
The use of an aftermarket reusable air filter DOES NOT void the vehicle's warranty.
If an aftermarket reusable air filter is used, technicians should inspect the MAF sensor element and the air induction hose for contamination of oil prior to making warranty repairs.
Transmission or engine driveability concerns (related to the MAF sensor being contaminated with oil) that are the result of the use of an aftermarket reusable, excessively/over-oiled air filter are not considered to be warrantable repair items.
MT-2500
06-11-2006, 12:56 PM
Read this careful. It says tranny shift and Driveability Concerns or SES Lamp ON. I repeat OR (OR) SES light. Looks like sometimes not gonna trow code. And i dont have osciloscop to check it.
A/T - Shift/Driveability Concerns/SES Lamp ON
Bulletin No.: 04-07-30-013A
Date: January 25, 2005
INFORMATION
Subject:
Automatic Transmission Shift, Engine Driveability Concerns or Service Engine Soon (SES) Light On as a Result of the Use of an Excessively/Over-Oiled Aftermarket, Reusable Air Filter
Models:
2005 and Prior GM Cars and Light Duty Trucks
2005 and Prior Saturn Models
Supercede:
This bulletin is being revised to add additional model years and to clarify warranty coverage. Please discard Corporate Bulletin Number 04-07-30-013 (Section 07 - Transmission/Transaxle).
http://www.alldatadiy.com/alldata/AFI~V6796832~C37398~R0~OB0~P3R0H~N/0/89012112/94694975/94694986/94694990/34853741/100411974/34853743/34872087/34858672/42176755/112163062/111809841/111818979
The use of an excessively/over-oiled aftermarket, reusable air filter may result in:
^Service Engine Soon (SES) Light On
^Transmission shift concerns, slipping and damaged clutch(es) or band(s)
^Engine driveability concerns, poor acceleration from a stop, limited engine RPM range
The oil that is used on these air filter elements may be transferred onto the Mass Air Flow (MAF) sensor causing contamination of the sensor. As a result, the Grams per Second (GPS) signal from the MAF may be low and any or all of the concerns listed above may occur.
When servicing a vehicle with any of these concerns, be sure to check for the presence of an aftermarket reusable, excessively/over-oiled air filter. The MAF, GPS reading should be compared to a like vehicle with an OEM air box and filter under the same driving conditions to verify the concern.
The use of an aftermarket reusable air filter DOES NOT void the vehicle's warranty.
If an aftermarket reusable air filter is used, technicians should inspect the MAF sensor element and the air induction hose for contamination of oil prior to making warranty repairs.
Transmission or engine driveability concerns (related to the MAF sensor being contaminated with oil) that are the result of the use of an aftermarket reusable, excessively/over-oiled air filter are not considered to be warrantable repair items.
I did not aim to blow you away on the code 420 just trying to expain some of the things that can cause it.
That tsb is for the famous K&N oiled air filters.
To much oil in them and it gets in the MAF sensor and throws it off.
If you are using a K&N filter go easy on the oil and keep your MAF sensor cleaned.
If you have a missfire work on it first.
Missfires can wipe out a cat fast.
Also a bad or dirty MAF sensor will throw off fuel mix.
A good engine capable scanner can pick up on the cat and missfire and maf sensor problems.
Good luck
MT
A/T - Shift/Driveability Concerns/SES Lamp ON
Bulletin No.: 04-07-30-013A
Date: January 25, 2005
INFORMATION
Subject:
Automatic Transmission Shift, Engine Driveability Concerns or Service Engine Soon (SES) Light On as a Result of the Use of an Excessively/Over-Oiled Aftermarket, Reusable Air Filter
Models:
2005 and Prior GM Cars and Light Duty Trucks
2005 and Prior Saturn Models
Supercede:
This bulletin is being revised to add additional model years and to clarify warranty coverage. Please discard Corporate Bulletin Number 04-07-30-013 (Section 07 - Transmission/Transaxle).
http://www.alldatadiy.com/alldata/AFI~V6796832~C37398~R0~OB0~P3R0H~N/0/89012112/94694975/94694986/94694990/34853741/100411974/34853743/34872087/34858672/42176755/112163062/111809841/111818979
The use of an excessively/over-oiled aftermarket, reusable air filter may result in:
^Service Engine Soon (SES) Light On
^Transmission shift concerns, slipping and damaged clutch(es) or band(s)
^Engine driveability concerns, poor acceleration from a stop, limited engine RPM range
The oil that is used on these air filter elements may be transferred onto the Mass Air Flow (MAF) sensor causing contamination of the sensor. As a result, the Grams per Second (GPS) signal from the MAF may be low and any or all of the concerns listed above may occur.
When servicing a vehicle with any of these concerns, be sure to check for the presence of an aftermarket reusable, excessively/over-oiled air filter. The MAF, GPS reading should be compared to a like vehicle with an OEM air box and filter under the same driving conditions to verify the concern.
The use of an aftermarket reusable air filter DOES NOT void the vehicle's warranty.
If an aftermarket reusable air filter is used, technicians should inspect the MAF sensor element and the air induction hose for contamination of oil prior to making warranty repairs.
Transmission or engine driveability concerns (related to the MAF sensor being contaminated with oil) that are the result of the use of an aftermarket reusable, excessively/over-oiled air filter are not considered to be warrantable repair items.
I did not aim to blow you away on the code 420 just trying to expain some of the things that can cause it.
That tsb is for the famous K&N oiled air filters.
To much oil in them and it gets in the MAF sensor and throws it off.
If you are using a K&N filter go easy on the oil and keep your MAF sensor cleaned.
If you have a missfire work on it first.
Missfires can wipe out a cat fast.
Also a bad or dirty MAF sensor will throw off fuel mix.
A good engine capable scanner can pick up on the cat and missfire and maf sensor problems.
Good luck
MT
BNaylor
06-11-2006, 01:23 PM
I don't know about you MT2500 but it is starting to sound like we are revisiting his prior posts and problems on the issue and going around in a circle. And that doesn't count the PM emails he sent me.
I do not like the reading he claims he is getting on engine vacuum and I mentioned possible intake gaskets, throttle body gasket or a vacuum leak to him in the past. The 14 - 15 in hg is borderline for a healthy 3.4L if it was performed correctly. I get nothing less than 18 inches and steady with engine properly warmed up at idle.
It won't make any difference of how many CAT convertors are put in until other obvious issues are resolved first. Just my two cents worth. :2cents:
I do not like the reading he claims he is getting on engine vacuum and I mentioned possible intake gaskets, throttle body gasket or a vacuum leak to him in the past. The 14 - 15 in hg is borderline for a healthy 3.4L if it was performed correctly. I get nothing less than 18 inches and steady with engine properly warmed up at idle.
It won't make any difference of how many CAT convertors are put in until other obvious issues are resolved first. Just my two cents worth. :2cents:
MT-2500
06-11-2006, 03:27 PM
I don't know about you MT2500 but it is starting to sound like we are revisiting his prior posts and problems on the issue and going around in a circle. And that doesn't count the PM emails he sent me.
I do not like the reading he claims he is getting on engine vacuum and I mentioned possible intake gaskets, throttle body gasket or a vacuum leak to him in the past. The 14 - 15 in hg is borderline for a healthy 3.4L if it was performed correctly. I get nothing less than 18 inches and steady with engine properly warmed up at idle.
It won't make any difference of how many CAT convertors are put in until other obvious issues are resolved first. Just my two cents worth. :2cents:
10-4 on that Bnaylor
Low engine vacume and missfire codes and replacing thee MAF sensor.
Big problems someplace beside cats.
Ysteve are you editing your post on that TSB the post keeps changing before my eyes?
MT
I do not like the reading he claims he is getting on engine vacuum and I mentioned possible intake gaskets, throttle body gasket or a vacuum leak to him in the past. The 14 - 15 in hg is borderline for a healthy 3.4L if it was performed correctly. I get nothing less than 18 inches and steady with engine properly warmed up at idle.
It won't make any difference of how many CAT convertors are put in until other obvious issues are resolved first. Just my two cents worth. :2cents:
10-4 on that Bnaylor
Low engine vacume and missfire codes and replacing thee MAF sensor.
Big problems someplace beside cats.
Ysteve are you editing your post on that TSB the post keeps changing before my eyes?
MT
ysteve
06-11-2006, 05:44 PM
Listen the thing is. I have engine shaking ones in 3 seconds, so this mean missfire. And i cant find why. i wrote before that i change a bunch of things and its still presents. How i can check timing my self? I really dont know. If you know somebody in NY to do this car for me. Cause i really dont have any clues.
MT-2500
06-11-2006, 06:04 PM
Read this careful. It says tranny shift and Driveability Concerns or SES Lamp ON. I repeat OR (OR) SES light. Looks like sometimes not gonna trow code. And i dont have osciloscop to check it.
A/T - Shift/Driveability Concerns/SES Lamp ON
Bulletin No.: 04-07-30-013A
Date: January 25, 2005
INFORMATION
Subject:
Automatic Transmission Shift, Engine Driveability Concerns or Service Engine Soon (SES) Light On as a Result of the Use of an Excessively/Over-Oiled Aftermarket, Reusable Air Filter
Models:
2005 and Prior GM Cars and Light Duty Trucks
2005 and Prior Saturn Models
Supercede:
This bulletin is being revised to add additional model years and to clarify warranty coverage. Please discard Corporate Bulletin Number 04-07-30-013 (Section 07 - Transmission/Transaxle).
http://www.alldatadiy.com/alldata/AFI~V6796832~C37398~R0~OB0~P3R0H~N/0/89012112/94694975/94694986/94694990/34853741/100411974/34853743/34872087/34858672/42176755/112163062/111809841/111818979
The use of an excessively/over-oiled aftermarket, reusable air filter may result in:
^Service Engine Soon (SES) Light On
^Transmission shift concerns, slipping and damaged clutch(es) or band(s)
^Engine driveability concerns, poor acceleration from a stop, limited engine RPM range
The oil that is used on these air filter elements may be transferred onto the Mass Air Flow (MAF) sensor causing contamination of the sensor. As a result, the Grams per Second (GPS) signal from the MAF may be low and any or all of the concerns listed above may occur.
When servicing a vehicle with any of these concerns, be sure to check for the presence of an aftermarket reusable, excessively/over-oiled air filter. The MAF, GPS reading should be compared to a like vehicle with an OEM air box and filter under the same driving conditions to verify the concern.
The use of an aftermarket reusable air filter DOES NOT void the vehicle's warranty.
If an aftermarket reusable air filter is used, technicians should inspect the MAF sensor element and the air induction hose for contamination of oil prior to making warranty repairs.
Transmission or engine driveability concerns (related to the MAF sensor being contaminated with oil) that are the result of the use of an aftermarket reusable, excessively/over-oiled air filter are not considered to be warrantable repair items.
Please remove or edit the picture in this upper post. It is going hatwir or changeing all the time.:grinyes: :lol: :rofl:
MT
A/T - Shift/Driveability Concerns/SES Lamp ON
Bulletin No.: 04-07-30-013A
Date: January 25, 2005
INFORMATION
Subject:
Automatic Transmission Shift, Engine Driveability Concerns or Service Engine Soon (SES) Light On as a Result of the Use of an Excessively/Over-Oiled Aftermarket, Reusable Air Filter
Models:
2005 and Prior GM Cars and Light Duty Trucks
2005 and Prior Saturn Models
Supercede:
This bulletin is being revised to add additional model years and to clarify warranty coverage. Please discard Corporate Bulletin Number 04-07-30-013 (Section 07 - Transmission/Transaxle).
http://www.alldatadiy.com/alldata/AFI~V6796832~C37398~R0~OB0~P3R0H~N/0/89012112/94694975/94694986/94694990/34853741/100411974/34853743/34872087/34858672/42176755/112163062/111809841/111818979
The use of an excessively/over-oiled aftermarket, reusable air filter may result in:
^Service Engine Soon (SES) Light On
^Transmission shift concerns, slipping and damaged clutch(es) or band(s)
^Engine driveability concerns, poor acceleration from a stop, limited engine RPM range
The oil that is used on these air filter elements may be transferred onto the Mass Air Flow (MAF) sensor causing contamination of the sensor. As a result, the Grams per Second (GPS) signal from the MAF may be low and any or all of the concerns listed above may occur.
When servicing a vehicle with any of these concerns, be sure to check for the presence of an aftermarket reusable, excessively/over-oiled air filter. The MAF, GPS reading should be compared to a like vehicle with an OEM air box and filter under the same driving conditions to verify the concern.
The use of an aftermarket reusable air filter DOES NOT void the vehicle's warranty.
If an aftermarket reusable air filter is used, technicians should inspect the MAF sensor element and the air induction hose for contamination of oil prior to making warranty repairs.
Transmission or engine driveability concerns (related to the MAF sensor being contaminated with oil) that are the result of the use of an aftermarket reusable, excessively/over-oiled air filter are not considered to be warrantable repair items.
Please remove or edit the picture in this upper post. It is going hatwir or changeing all the time.:grinyes: :lol: :rofl:
MT
MT-2500
06-11-2006, 06:13 PM
Listen the thing is. I have engine shaking ones in 3 seconds, so this mean missfire. And i cant find why. i wrote before that i change a bunch of things and its still presents. How i can check timing my self? I really dont know. If you know somebody in NY to do this car for me. Cause i really dont have any clues.
The timing is non adjustable.
I reviewed some of your post and man you have problems running out your ears.
Starting with the cat replacement and similaters.
Also a Bnayor said that low vacume is not right.
Throwing more cats at it is not going to help you.
No offernse but It sounds like it is getting over your head. You have had some good answers to all of your questions but you are not following threw on the you keep jumping from one thing to another.
In your best interest I would advise you to find a good REPAIR SHOP AND LET THEM HAVE AT IT.
Here is some tips on finding one.
Good Luck MT
Check around Ask around
Word of mouth.
Family friends coworkers neighbors business people and delivery people.
Mailmen and parcel delivery people get around and notice a lot of stuff.
Even a good parts house knows what shops are good and not good.
Chamber of commerce and better business bureau and city hall.
If you find a good referral to a repair shop go look them over and talk to them.
Look for a clean looking busy place with nice people running it.
Ask a few questions and ask about their qualifications and training.
Not all places have trained tech/mechanics.
If they do not find a place that does.
Even all dealers do not have all trained techs/mechanics.
Also if you go to a dealer repair shop.
Tip on going to the dealer
Ask that only a factory certified gasoline engine performance specialist work on your car.
Not all dealerships are concerned with how repairs are dispatched, and not all dealership techs bother to take advantage of the training offered by factory (the vast majority of which is paid training). If the dealer is uncooperative, ask for your money back and call around for a dealer that will accommodate you.
The timing is non adjustable.
I reviewed some of your post and man you have problems running out your ears.
Starting with the cat replacement and similaters.
Also a Bnayor said that low vacume is not right.
Throwing more cats at it is not going to help you.
No offernse but It sounds like it is getting over your head. You have had some good answers to all of your questions but you are not following threw on the you keep jumping from one thing to another.
In your best interest I would advise you to find a good REPAIR SHOP AND LET THEM HAVE AT IT.
Here is some tips on finding one.
Good Luck MT
Check around Ask around
Word of mouth.
Family friends coworkers neighbors business people and delivery people.
Mailmen and parcel delivery people get around and notice a lot of stuff.
Even a good parts house knows what shops are good and not good.
Chamber of commerce and better business bureau and city hall.
If you find a good referral to a repair shop go look them over and talk to them.
Look for a clean looking busy place with nice people running it.
Ask a few questions and ask about their qualifications and training.
Not all places have trained tech/mechanics.
If they do not find a place that does.
Even all dealers do not have all trained techs/mechanics.
Also if you go to a dealer repair shop.
Tip on going to the dealer
Ask that only a factory certified gasoline engine performance specialist work on your car.
Not all dealerships are concerned with how repairs are dispatched, and not all dealership techs bother to take advantage of the training offered by factory (the vast majority of which is paid training). If the dealer is uncooperative, ask for your money back and call around for a dealer that will accommodate you.
ysteve
06-11-2006, 06:32 PM
Thank you i will respond soon with my investigations.
maxwedge
06-11-2006, 07:25 PM
The timing is non adjustable.
I reviewed some of your post and man you have problems running out your ears.
Starting with the cat replacement and similaters.
Also a Bnayor said that low vacume is not right.
Throwing more cats at it is not going to help you.
No offernse but It sounds like it is getting over your head. You have had some good answers to all of your questions but you are not following threw on the you keep jumping from one thing to another.
In your best interest I would advise you to find a good REPAIR SHOP AND LET THEM HAVE AT IT.
Here is some tips on finding one.
Good Luck MT
Check around Ask around
Word of mouth.
Family friends coworkers neighbors business people and delivery people.
Mailmen and parcel delivery people get around and notice a lot of stuff.
Even a good parts house knows what shops are good and not good.
Chamber of commerce and better business bureau and city hall.
If you find a good referral to a repair shop go look them over and talk to them.
Look for a clean looking busy place with nice people running it.
Ask a few questions and ask about their qualifications and training.
Not all places have trained tech/mechanics.
If they do not find a place that does.
Even all dealers do not have all trained techs/mechanics.
Also if you go to a dealer repair shop.
Tip on going to the dealer
Ask that only a factory certified gasoline engine performance specialist work on your car.
Not all dealerships are concerned with how repairs are dispatched, and not all dealership techs bother to take advantage of the training offered by factory (the vast majority of which is paid training). If the dealer is uncooperative, ask for your money back and call around for a dealer that will accommodate you.
MT2500, seconded, no one is going to fix this deal over the internet!!!
I reviewed some of your post and man you have problems running out your ears.
Starting with the cat replacement and similaters.
Also a Bnayor said that low vacume is not right.
Throwing more cats at it is not going to help you.
No offernse but It sounds like it is getting over your head. You have had some good answers to all of your questions but you are not following threw on the you keep jumping from one thing to another.
In your best interest I would advise you to find a good REPAIR SHOP AND LET THEM HAVE AT IT.
Here is some tips on finding one.
Good Luck MT
Check around Ask around
Word of mouth.
Family friends coworkers neighbors business people and delivery people.
Mailmen and parcel delivery people get around and notice a lot of stuff.
Even a good parts house knows what shops are good and not good.
Chamber of commerce and better business bureau and city hall.
If you find a good referral to a repair shop go look them over and talk to them.
Look for a clean looking busy place with nice people running it.
Ask a few questions and ask about their qualifications and training.
Not all places have trained tech/mechanics.
If they do not find a place that does.
Even all dealers do not have all trained techs/mechanics.
Also if you go to a dealer repair shop.
Tip on going to the dealer
Ask that only a factory certified gasoline engine performance specialist work on your car.
Not all dealerships are concerned with how repairs are dispatched, and not all dealership techs bother to take advantage of the training offered by factory (the vast majority of which is paid training). If the dealer is uncooperative, ask for your money back and call around for a dealer that will accommodate you.
MT2500, seconded, no one is going to fix this deal over the internet!!!
MT-2500
06-11-2006, 08:52 PM
Read this careful. It says tranny shift and Driveability Concerns or SES Lamp ON. I repeat OR (OR) SES light. Looks like sometimes not gonna trow code. And i dont have osciloscop to check it.
A/T - Shift/Driveability Concerns/SES Lamp ON
Bulletin No.: 04-07-30-013A
Date: January 25, 2005
INFORMATION
Subject:
Automatic Transmission Shift, Engine Driveability Concerns or Service Engine Soon (SES) Light On as a Result of the Use of an Excessively/Over-Oiled Aftermarket, Reusable Air Filter
Models:
2005 and Prior GM Cars and Light Duty Trucks
2005 and Prior Saturn Models
Supercede:
This bulletin is being revised to add additional model years and to clarify warranty coverage. Please discard Corporate Bulletin Number 04-07-30-013 (Section 07 - Transmission/Transaxle).
The use of an excessively/over-oiled aftermarket, reusable air filter may result in:
^Service Engine Soon (SES) Light On
^Transmission shift concerns, slipping and damaged clutch(es) or band(s)
^Engine driveability concerns, poor acceleration from a stop, limited engine RPM range
The oil that is used on these air filter elements may be transferred onto the Mass Air Flow (MAF) sensor causing contamination of the sensor. As a result, the Grams per Second (GPS) signal from the MAF may be low and any or all of the concerns listed above may occur.
When servicing a vehicle with any of these concerns, be sure to check for the presence of an aftermarket reusable, excessively/over-oiled air filter. The MAF, GPS reading should be compared to a like vehicle with an OEM air box and filter under the same driving conditions to verify the concern.
The use of an aftermarket reusable air filter DOES NOT void the vehicle's warranty.
If an aftermarket reusable air filter is used, technicians should inspect the MAF sensor element and the air induction hose for contamination of oil prior to making warranty repairs.
Transmission or engine driveability concerns (related to the MAF sensor being contaminated with oil) that are the result of the use of an aftermarket reusable, excessively/over-oiled air filter are not considered to be warrantable repair items.
Thanks for the edit. It is a Lot better now.:grinyes:
MT
A/T - Shift/Driveability Concerns/SES Lamp ON
Bulletin No.: 04-07-30-013A
Date: January 25, 2005
INFORMATION
Subject:
Automatic Transmission Shift, Engine Driveability Concerns or Service Engine Soon (SES) Light On as a Result of the Use of an Excessively/Over-Oiled Aftermarket, Reusable Air Filter
Models:
2005 and Prior GM Cars and Light Duty Trucks
2005 and Prior Saturn Models
Supercede:
This bulletin is being revised to add additional model years and to clarify warranty coverage. Please discard Corporate Bulletin Number 04-07-30-013 (Section 07 - Transmission/Transaxle).
The use of an excessively/over-oiled aftermarket, reusable air filter may result in:
^Service Engine Soon (SES) Light On
^Transmission shift concerns, slipping and damaged clutch(es) or band(s)
^Engine driveability concerns, poor acceleration from a stop, limited engine RPM range
The oil that is used on these air filter elements may be transferred onto the Mass Air Flow (MAF) sensor causing contamination of the sensor. As a result, the Grams per Second (GPS) signal from the MAF may be low and any or all of the concerns listed above may occur.
When servicing a vehicle with any of these concerns, be sure to check for the presence of an aftermarket reusable, excessively/over-oiled air filter. The MAF, GPS reading should be compared to a like vehicle with an OEM air box and filter under the same driving conditions to verify the concern.
The use of an aftermarket reusable air filter DOES NOT void the vehicle's warranty.
If an aftermarket reusable air filter is used, technicians should inspect the MAF sensor element and the air induction hose for contamination of oil prior to making warranty repairs.
Transmission or engine driveability concerns (related to the MAF sensor being contaminated with oil) that are the result of the use of an aftermarket reusable, excessively/over-oiled air filter are not considered to be warrantable repair items.
Thanks for the edit. It is a Lot better now.:grinyes:
MT
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