Question about Pontiac Grand Prix
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Posted on Jan 02, 2017
Best way is to get the fault codes read using a £15 interface cable and VAG-com software (£free) on a laptop computer. It will save you money. In the meantime, have you removed and examined the spark plugs?
Hope this helps you a bit. If it does, a "Fixya" rating would be much appreciated. If it doesn't
help you, I'd be grateful if you didn't bother with a rating at present - they can't be increased later if I do manage to solve your problem! Just come back and tell me what you found. Cheers, D
Posted on Dec 03, 2008
SOURCE: 1995 pontiac bonneville stalls
I just went through lots of troubleshooting and expense on my 1996. Whenever I would lift my foot off the accelerator and was below about 30 mph, the rpm's would starts jumping around and sometimes it would stall. If I gave it a little gas (accelerator), I could sometimes keep it running. It also backfired once in a while. Starts right back up. Also, if I let it idle while in part, it would die after 1-2 minutes.
I ended up finding a hole in the fuel regulator. About a ~$70 part if you get an AC Delco, but very simple to change.
Posted on Dec 24, 2008
Sounds like idle air control valve sticking. If i remember correctly, the idle air control valve is built into the throttle body. This is the part that connects between the air filter and inlet manifold. take this off and clean thoroughly with carb cleaner. if this does not work, then renew part.
Posted on Jan 21, 2009
SOURCE: 2003 toyota sienna idle problem
After about 100K + miles the idle air control valve (IAC) begins to collect carbon deposits that interfere with the movement of the spring-loaded valve. You will not be able to clean this without removal and dissembly of the IAC body. Use an emory cloth or fine sandpaper to remove the build up around the valve. This should free it up to rotate without binding. This is a temporary fix, of course, and will either require cleaning again or replacement of the valve. Getting to the IAC requires removal of most of the intake upto, but not including, the intake manifold. Total time is approximately 3-4 hours, but worth it. Good luck, and I hope this helps.
Posted on Feb 21, 2010
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