Question about 1991 Buick Regal

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Just dies when letting off gas, seems to happen when over heated,or AC on, it starts right away after it dies. Have had it hooked up to diagnostic's and it comes back OK evan when acting up. leaving on road trip wondering what I can Do?

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  • mpboyles2004 Jul 14, 2009

    Now the car will not start, it died a few times while I added the intake cleaner, then I started to just put a little in and kept it running, then it just cough and seemed like it was flooded or starved for fuel?

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Sound like intake gasket leak.its getting more air than fuel.replace fuel filter see if it help.

Posted on Jul 15, 2009

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Below is what I have found is th problem.

Here is the common cause of surges, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.


Posted on Jul 14, 2009

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