94 buick lesabre 3.8 liter high idle
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94 buick lesabre 3.8 liter high idle
friends 94 lesabre has a high idle problem. code read quad driver failure. cleared and no codes came back vehicle will start and then go high idle, when you shut engine off you may have to wait 10 to 20 minutes before engine will restart. suspected bad idle air control valve and replaced that part but problem still there . engine had a heavy vacuum sound checked for loose vacuum hoses and found none. any help would be greatly appreciated
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in2pro
Tahoe & Suburban
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December 25th, 2020 11:34 PM