WHEN THE CAR IS IDLE THE ENGINE KEEP ON GETTING ...

1994 Honda Accord

Tiny

Anonymous

November, 28, 2012 AT 2:23 AM

When the car is idle, the engine keep on getting loud and then normal but when driving is fine, what can the problem be?

1 Answer

Tiny

KHLow2008

November, 28, 2012 AT 4:55 PM

Sypmtom is known as surging and this is due to excessive high idle.
Possible causes are: Vacum leakages.
Lack of coolant.
Idling speed adjusted to high.
Faulty Idle Air Control (IAC) valve.
Cold start valve(fast idle thermo valve(FITV)).
Clogged coolant hoses to FITV and IAC.

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