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12-08-2009, 06:34 PM
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#1 | |
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AF Newbie
Join Date: Dec 2009
Location: Toronto
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01 jimmy no power
I have 01 jimmy that has no power when i step hard on the gas, the revs dont increase, and it bogs, but if i step slow or let go the gas a bit and then step on again then it starts to pick up speed. Some days it runs better than others, and when the engine is cold it acts up more. I have to baby it to get it up to speed I also have goten codes po128 and p0410 every now and then.Any help would be much appreciated.
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12-08-2009, 07:08 PM
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#2 | |
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A990 racer
 Join Date: Mar 2002
Location: Chestertown, New York
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Re: 01 jimmy no power
Welcome to AF. 128 is the thermostat, engine is out of temp range or the temp sensor is bad, a scan will show that, 410 is the AIR system which wouldn't affect power. Low fuel pressure, or a bad cat are the more common issues with the symptoms.
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01-10-2010, 06:14 PM
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#3 | |
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AF Newbie
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Re: 01 jimmy no power
I still have the same problem after changing the whole exhaust including the resonator/pre cat, cat, and mufler, so i guess that wasnt the problem. I was wondering if it could be a bad distributor? I also noticed that if i floor the gas the rpm's drop and engine feels like it will stall, and sometimes depending how long i keep my foot on the gas the engine backfires. Any help would be much appreciated, I just need this jimmy to last until the spring.Thanks.
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01-10-2010, 06:16 PM
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#4 | |
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AF Newbie
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Re: 01 jimmy no power
Does anyone know how much you get for scraping the catalytic converters, I know they are worth someting because of the special metals in it
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01-10-2010, 06:49 PM
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#5 | |
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Advisor/Moderator
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Re: 01 jimmy no power
Scrap rates vary depending on the area, check with a scrap metal dealer.
As maxwedge mentioned... have you checked fuel pressure and leakdown?
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01-11-2010, 02:32 PM
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#6 | |
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AF Regular
Join Date: Feb 2009
Location: Acton, Ontario
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Re: 01 jimmy no power
Clean the Mass Airflow Sensor too. Mine caused all kinds of driveability issues yet did not set any codes for it.
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01-11-2010, 05:50 PM
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#7 | |
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AF Newbie
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Re: 01 jimmy no power
I forgot to mention that i checked the fuel pressure and it was at the lower range but still within the limit.
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01-11-2010, 05:58 PM
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#8 | |
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Advisor/Moderator
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Re: 01 jimmy no power
What was the pressure and how long did it remain above 55psi after the fuel pump shut off?
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01-11-2010, 06:07 PM
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#9 | |
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Re: 01 jimmy no power
The test was done about a month ago I think the pressure was about 60psi if i remember corectly all i know for shure that it was within the working limits wich i checked to make shure, but i did not check how long it stayed above 55psi
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01-11-2010, 06:31 PM
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#10 | |
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Advisor/Moderator
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Re: 01 jimmy no power
Excessive leakdown will cause a lack of power, better check it again to be sure.
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