1993 Honda Civic Idle Air Control Valve

Tiny
MARTEE
  • MEMBER
  • 1993 HONDA CIVIC
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 187,000 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.
Tuesday, April 6th, 2010 AT 1:25 PM

1 Reply

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
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.
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Sunday, April 11th, 2010 AT 1:58 AM

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