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Old 29 Dec 2009, 05:46 pm
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Join Date: Aug 2007
Posts: 105
Default 2003 Honda Pilot Revvs up and down at idle?

2003 Honda Pilot.

When sitting in park at idle it revvs up and down between 900 and 1500 RPMs every 4 or 5 seconds all by itself!

Any idea what could possibly cause this?

It threw a check engine and VTM light today. Guess it's time to get the idle control valve checked...
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Old 29 Dec 2009, 06:01 pm
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Join Date: Dec 2009
Posts: 3

There are 2 things I can think of. First one is your idle air control valve (usually throws out a check engine light). Second one is your car might just need a major tune up. My 91 Mr-2 did that except it was between 900 and 1200 RPM. Then I changed spark plus, wires, distributor cap and rotor, fuel filter, and air filter and it was idling just fine again.
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