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2000 Chevrolet Monte Carlo LS 2dr Coupe

2000 Chevrolet Monte Carlo
Trim Info:
Front Wheel Drive, 2 Door Coupe LS, Mid-Size
20 mpg city / 32 mpg hwy
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December 10, 2012, 7:30 pm

Eric G
 

Question: why is my idle rough/low?

I occasionally have a low idle, around 600 RPM's. It has a noticeable vibration throughout the car. When it doesn't experience a rough idle, it's in the 700 RPM range and is pretty smooth. Fuel system is clean, spark plugs are pretty new, and it's taken care of.


December 14, 2012, 10:13 am

Elizabeth K
Expert Mechanic

Commonly overlooked maintenance: clean the IAC (idle air control) valve, and clean the throttle body.


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