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  1. Chevy C/K Truck Forum
    I have a 1994 Chevy C1500, 5.7L engine. My truck idled high and struggled to accelerate so I finally got around to replacing the idle air control valve. This didn't fix the problem and it continued to idle high. I determined the issue to be a vacuum leak, so I replaced my vacuum hoses and...
    idling issues low idle rough idle trouble starting vaccum leak
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