what is an iac
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Junior Member
Joined: Oct 2012
Posts: 3
what is an iac
Hi new to the site been looking through its very good .
I have a question what is the iac my cab 1990 automatic the engine rpm at idle whines up and down what could be my problem i have to adjust over 1500 rpm to run but if i drive it idles bad have to gas if not it shuts down appriciate the help
I have a question what is the iac my cab 1990 automatic the engine rpm at idle whines up and down what could be my problem i have to adjust over 1500 rpm to run but if i drive it idles bad have to gas if not it shuts down appriciate the help
Super Moderator
Joined: Sep 2009
Posts: 2,648
From: Stoke on Trent, England
Its an Idle Air Control (IAC) valve.
How an Idle Air Control Valve Works | eHow.com
Get it checked out.
https://volkswagenforum.com/forum/ne...gnature-34185/
How an Idle Air Control Valve Works | eHow.com
Get it checked out.
https://volkswagenforum.com/forum/ne...gnature-34185/