Question about 1988 Chevrolet C1500

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81 GMC 1/2 ton... rough idle when warmed up

My truck has developed a rough idle when warmed up. It has new plugs, wires, rotor and cap. I can find no vacuum leaks.

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You may want to adjust the idle on the carb (if it is carbed). Also check the air fuel mixture.

Posted on Jun 04, 2009

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