What would make the car idle high?

DRIBBLER1

MEMBER
2000 CHEVROLET MALIBU
100,000 MILES

It idles at 2000 rpms or more and when you turn on the air it goes up to 4000 rpms. It also has fast acceleration also

Monday, August 29th, 2011 AT 8:04 PM

1 Reply

CARADIODOC

MECHANIC
33,871 POSTS

I'd be suspicious of a vacuum leak. When the engine is still cold and running, use a spray bottle to spray water over the intake manifold gaskets and vacuum hoses. Watch for places the water gets sucked in or that makes the engine slow down.

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What would make the car idle high?

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