Mechanics

IDLE AIR CONTROL VALVE

1993 Honda Civic

Engine Performance problem
1993 Honda Civic 4 cyl Front Wheel Drive Automatic 187000 miles

I removed the IACV and found in the leading hose (intake) a fluid that looks like anti-freeze. Where might this be coming from and is it possibly something I can fix myself? The engine idles fine until warm up then tries to die. I was told at Pep Boys (please don't hold that against me) that it was the IACV and was very expensive to replace on this model. So I googled and found how to clean first. I did so but it didn't click that this was idle AIR and there shouldn't be fluid in the incoming line. Any help you can give would be much appreciated.
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Martee
April 6, 2010.



Hi Martee,

IACV = Idle Air Control Valve, also known as the EACV ( Electronic Air Control Valve).

At lower portion of the IAC there are 2 hoses and both these are for coolant to travel through. This is for control of the IAC.

KHLow2008
Apr 11, 2010.