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#1
12-04-2004, 08:13 AM
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Question:Warnings
I have a 1999 Z71 Ext.Cab 5.3 w/ 118,000. Service Engine Light came on last night and stays on. Can it be read by something to determine what the problem is, or am I screwed?
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#2
12-04-2004, 08:53 AM
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Re: Question:Warnings
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__________________
Some people see things as they are and say "Why?". I dream of things that never were and say "Why not."" -George Bernard Shaw "Mind over matter: If she doesn't mind, It doesn't matter" -Nineball 
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#3
12-04-2004, 10:21 PM
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Re: Question:Warnings
So your sayin if i take my truck to Autozone and get them to hook it up to thier diagnostic thinger they will either clear it as an error or read the problem indicated...for free....?
__________________
"Never under estimate the power of stupid people in large groups." 1997 K-1500 Silverado Vortec 350...125,610 and wounded HD chassis package Custom TRUE DUAL exhaust with cut-outs and Flowmaster 40 series mufflers Poweraid Throttle Body Spacer Custom Ram-air Intake with K&N FIPK GEN II TFES Performance 3" Suspension Lift Dual Air-Horn Kit with Compressor Bed-Mounted 48" Hi-Lift Jack Cobra Laser Radar Detector 285/75/R16 Cooper Discoverer STT's 1/4 Mile 10/15/05: 16.43 @ 91mph
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#5
12-04-2004, 11:57 PM
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Re: Question:Warnings
yep, so should napa, pepboys, carquest, advance auto, ect.....
__________________
Some people see things as they are and say "Why?". I dream of things that never were and say "Why not."" -George Bernard Shaw "Mind over matter: If she doesn't mind, It doesn't matter" -Nineball
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#6
12-05-2004, 06:10 AM
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Re: Question:Warnings
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You are not screwed.....what has happened is the computer has seen a problem related to one of its inputs or outputs and turned on the light. Autozone or one of the other chain auto parts store can read the code for you. Post the code here and we can help you figure out what is going on from there
__________________
Why do you never have enough time or money to do the job right the first time, but enough time and money to do it again? Got all the certifications 25 years ASE Certified Master Technician GM WCT Yea..I work at a DEALERSHIP....got a problem with that? Want to diagnose cars like the Pros? FOR SALE: OTC Perception 2 channel Labscope (badged as a Matco Reality) This is my personal labscope that I use to diagnose waveforms, like new, comes with leads and training video PM Me for details
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#7
12-05-2004, 10:33 AM
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I am having the worst luck. My service engine soon light came on and has stayed on for almost three days. I go to Autozone this morning like you guys suggested, and as I am pulling into the parking lot, the service engine soon light goes out!
Autozone says they can't read it if the light is not lit. Now, I have to wait until the damn thing comes on again. Unfortunately, I might not get another chance....whatever is wrong might just go out next time instead of giving me another warning. Whew, this is frustarting!
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#8
12-05-2004, 07:54 PM
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Re: Question:Warnings
WHAT ??????????
They can to read it. Its a stored code. The guy you talked to must have just got fired at Mcdonalds and hired as a auto tech. 1999 Is OBD2 computer system and it is stored there and is still there
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#9
12-06-2004, 09:07 AM
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Re: Question:Warnings
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Codes are stored in history, The code reader should be able to pull the code.
__________________
Why do you never have enough time or money to do the job right the first time, but enough time and money to do it again? Got all the certifications 25 years ASE Certified Master Technician GM WCT Yea..I work at a DEALERSHIP....got a problem with that? Want to diagnose cars like the Pros? FOR SALE: OTC Perception 2 channel Labscope (badged as a Matco Reality) This is my personal labscope that I use to diagnose waveforms, like new, comes with leads and training video PM Me for details
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#10
12-06-2004, 09:24 AM
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Okay guys, I got the code read. it is a P171 and a P174 which the Chevy guide say is Fuel Trim Lean in Bank 1 and 2. The book says it could be anything ranging from an unseated oil cap or stick to a loose hose. I know it is not the oil stick or cap, and I can't find any particular hose that seems to be unsealed. I am pretty sure it is a seal or loose hose though because within 5-10 minutes of run time it goes away. Enough time for whatever is loose to seal up. Any suggestions?
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#11
12-06-2004, 10:45 AM
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Re: Question:Warnings
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#13
12-14-2004, 08:49 AM
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Re: Could be a bad sensor also.
Quote:
__________________
Why do you never have enough time or money to do the job right the first time, but enough time and money to do it again? Got all the certifications 25 years ASE Certified Master Technician GM WCT Yea..I work at a DEALERSHIP....got a problem with that? Want to diagnose cars like the Pros? FOR SALE: OTC Perception 2 channel Labscope (badged as a Matco Reality) This is my personal labscope that I use to diagnose waveforms, like new, comes with leads and training video PM Me for details
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#15
12-14-2004, 10:09 AM
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Hey Merlin, what's the fuel cap code? I can't remember and don't have my manual handy.
-slacker
__________________
When I die, I want to die peacefully in my sleep, just like my grandfather................not yelling and screaming like the other people in his car! http://www.geocities.com/tbuckit1/index.html
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