1991 Buick Regal Logo
Anonymous
Anonymous Posted on Dec 13, 2009
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Hey ive got a 1991 buick regal 3.8L just a couple questions. #1 when the car has been running for awhile Idle or driving and then been shut off when it is re started in the near future before the genine gets cold it will shake and shutter. i found a fix for this by putting it in nuteral and pushing the gas at a low rpm and it will stop. or driving for a few secconds will stop it. exasut back up? idk. # 2 my chk engine light is on for a camshaft sensor. replaced the sensor so its the magnet or the harnes with the problem. but can this cause the engine to get too hot and start to lack HP as it gets warmer? ive noticed when its cold its very mean. and when its hot its very lacking in HP it kinda wines

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  • Anonymous Dec 14, 2009

    replaced fuel filter about 2 yrs ago so i guess i need a new one. fuel pressure checked a year ago and strong. yet the fuel pump will sometimes sound strange when shutting off. but pressure always goes up instantly. the car doesnt shut off just gets real sluggish when hot. its pulling code 41 on an obd1 system. cam shaft possition sensor

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honeymokey

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  • Posted on Dec 14, 2009
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Get the fuel pressure checked after you change the fuel filter. The magnet on the came gear will most likley need to be replaced. The timing cover will need to come off to do this. While you are in there replace the chain, cam thrust spring and tensioner too. The cars with 3800's will usually shut off when the crank sensor gets hot after driving. Cooling it with a spray bottle of water will sometimes make them run. As for you case when it acts up spay it and see if it clears up. If so replace it. What are the engine codes? reply

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