ENGINE SOMETIMES RACES TO 3000 RPM A FEW MINUTES AFTER STARTING.

1993 Pontiac Bonneville

Tiny

Dave Kenney

November, 19, 2011 AT 3:26 PM

Pulling over and stopping and restarting the car immediately fixes the problem. It does not happen all the time and only when the engine is cold. It never happens when the car is at the repair shop.

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2 Answers

Tiny

DrCranknWrench

November, 19, 2011 AT 3:59 PM

It soundslike Idle Air Control Valve or a vacuum leak.
I am giving you a diagnostic walk through that will help you go through the car and find and fix common over rev issues.
It tells you how the IDLE AIR CONTROL works as well and how to check it.
You can find the IACV on the intake manifold near the throttle body.

Tiny

DrCranknWrench

November, 19, 2011 AT 4:00 PM

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