My 1988 chevy 1ton starts normally but if I leave it running, 10 min later it goes to high idle. It takes around 2 days before it goes back to normal. Is this something in the computer?

Asked by Aug 03, 2015 at 02:13 PM about the 1988 Chevrolet C/K 3500

Question type: Maintenance & Repair

1 Answer

106,355

Check the coolant temp sensor.

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