84 gmc 350 starts right up but races wide open having to shut down...help

Asked by Guru6RZWQ Mar 31, 2020 at 06:45 AM about the GMC Sierra 1500

Question type: Maintenance & Repair

as above

2 Answers

74,545

Check the throttle body for a sticking accelerator cable, or look for a large vacuum or air intake leak.

1 people found this helpful.

how do you find a vacuum leak without the engine running. that is my main trouble.

Your Answer:

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