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10th generation of Chevrolet's full sized SUV, based on the GM GT900 platform.

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My 07 suburbans rpm fluctuate when I am at a stop.

When my 07 suburban is at a stop the rpm fluctuate and the truck shake a little. If anyone has any suggestions please let me know.

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My son's Cadillac Deville had similar symptoms and I ended up tracing it down the the Idle Air Control (IAC) valve. You might check that to see if it's the problem. Here's a page that should help.

Symptoms of a Bad Idle Air Control Valve - In The Garage with CarParts.com

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My older suburban did the exact same thing. New plugs n wires fixed it right up.

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RPM Fluctuation is a common side effect of worn out spark plugs. You can try to replace these yourself or hire an Mechanic.

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Tony 将永远感激不已
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