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08-04-2009, 08:35 PM
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#1 | |
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AF Newbie
Join Date: Aug 2009
Location: deland, Florida
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help meeee
is this thresd working?
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08-04-2009, 08:44 PM
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#2 | |
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AF Newbie
Thread starter
Join Date: Aug 2009
Location: deland, Florida
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Re: help meeee
i have a1994 olds cutlass supreme with a 3.1 v-6 car normally runs great...
car misfires especially with acceleration. new plug wires/plugs/dyno checked and all tests performed and that business cant seem to figure it out. also changed 1 of 3 coils, that had a misfire///Car ran great for a month. Doing it again now.. Have tried to check spark again, but dont see any problem like before. could it be egr valve? fuel pump? ICM? Please help!!!! Taterhead |
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08-05-2009, 09:04 AM
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#3 | |
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A990 racer
 Join Date: Mar 2002
Location: Chestertown, New York
Posts: 16,989
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Re: help meeee
Could it be? Check the fuel pressure for starters, also could be a bad or dirty injector or ign module.
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08-05-2009, 09:14 AM
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#4 | |
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AF Regular
 Join Date: Feb 2009
Location: Erin, New York
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Re: help meeee
What did they charge you for the dyno pull? This is what it could be.
· Low fuel pressure for all the reasons, bad regulator, dirty filter, bad pump, bad pump connector next to the gas tank · Bad ICM or “crudded” up connector Bad MAF (tap it with a screwdriver and see if the engine stumbles) Plugged fuel injectors Severely dirty air filter will make it chug A stuck EGR on an OBDI will usually make the car sound like a diesel at idle and cruise, but little or no effect at WOT (clean it, check its operation, or just plug) The OBD I wont toss a code without it working. After that the only thing that comes to mind is a vacuum/intake leak. You can check that with a vacuum gauge, and spraying WD or starting fluid around the intake, unless it is sucking air from the engine. (But for god sakes dont catch the car on fire) |
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| Tags |
| 1994 , 3.1 , cutlass , misfiring , olds |
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