WHATS UP

1996 GMC Truck

Tiny

shallon

January, 18, 2011 AT 6:06 PM

Idles at 2 2and a half rpms instead of 1 1 half

FOUND 3989 RELATED QUESTIONS

1 Answer

Tiny

JDL

January, 18, 2011 AT 6:14 PM

Make sure the throttle-valve closes. Clean the throttle-body and check the iac. Possible vacuum leak? Any applicable trouble codes? Something could be requesting a higher idle, like hvac? There could be other requests concerning the idle, hard to tell from here.

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