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Possible bad Idle air control motor located on underside of throttle body. remove 2 screws and remove same. Clean w/toothbrush and replace see if this helps.

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โˆ™ 2005-09-28 23:52:03
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Q: Why does your 1991 Buick regal gs starts up and immediately stop it cranks fine and it run fine the day before?
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