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Pontiac Grand Am Starting/Stalling Problems

193 messages, Last post on Nov 28, 2009 at 6:55 PM
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Replying to: breynomar (Mar 06, 2009 5:40 pm) |
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| Here is my problem 3 times in about 500 miles my car has stalled out first time I was doing 45 on a straight away the lights came on and stalled I put it in park started right up went on my way the second time I put gas in it drove about 6 miles slowing to a stop car made a buzzing sound stalled out in the road someone helped me push it to the side would not start up waited about 10 min started right up drove home last night got gas same station (walmart) just about the same spot it stalled out again this time no buzzing just quietly stalled I threw it in neutral started no problem and I went home it is not over heating drives great no engine light or any thing I had a new fuel pump installed in December along with a new battery from time to time security light will come on and I have to wait to start it sometimes the light does not come on i just have to wait to start it anyway the car is a 2003 126thousand miles anyone have any ideas because no one else does. | |
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Replying to: bill442620 (May 07, 2007 4:25 pm) |
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Replying to: keith_w6 (Aug 06, 2007 8:05 am)
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Replying to: grandamsam (Mar 12, 2009 10:24 am) |
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1995 Dual Overhead Cam 2.3 l engine - idles rough at 500 rpm with low power & hesitates when accelerator is push. When I put it into gear, it stalls/dies. I have replaced the sprak plugs, and the ignition coils. Any Ideas?
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Replying to: cjdavis (Mar 28, 2009 9:10 pm)
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Replying to: burdawg (Mar 29, 2009 1:01 pm) I checked the fuel pressure - it is fine. I also checked to ensure that the fuel injectors are working correctly. They are. More History - I could have included a little more history that would have been helpfull. I completely rebuilt the engine (new pistons, rings, bearings, etc. and had the cylinder head machined. When everyting was reassembled, the engine started, but idled really rough, the brake pedal was hard, and the air would only come out of the top vent - no matter the setting. The car ran great on the road. I did some research and found that I had the Brake Booster vacuum hose in the wrong place. I corrected the vacuum hose problems, and tried again. No change. When the MAP vacuum line was removed from the intake manifold, the engine ran better. Not finding any other vacuum leaks, I resorted to the intake manifold since I had removed the intake manifold after it was torqued down to get to some wiring. I installed a new intake manifold gasket, and started the car. The engine was hard to start (similar to an the old days of the choke) and had a strong emissions oder. I had a good brake pedal, but once started, the engine ran poorly and would die if left idling, or as soon as it was put into gear. I changed the spark plugs, no luck. This had happened once before a little over a year ago. The diagnosis was a bad coil. The coils were replaced and it ran fine for a year.
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