I have a 1988 GMC 1500 with a 305 throttle body. It idols rough done a tune up and. nothing. change what. should. I look for now

Asked by Feb 14, 2014 at 10:48 PM

Question type: Maintenance & Repair

1 Answer

36,745

Replace your idle air control solenoid. Just google it and click images if you don't know what it looks like. Should be around your throttle body. Also clean throttle body especially the plate.

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