Now I did notice that the large vacuum line coming from under the IAC has a lot of suction. Is this vacuum hose leaking?
Unplug the valve if it is operating properly the engine will shut off. If there are vacuum leaks it will stay running and you can listen, find and fix them. A lot of the time if the idle seems high when you start, hit it with a hammer, if the idle drops the valve is sticking, probably has a cracked piston in the valve and needs to be replaced.
Thursday, September 16th, 2010 AT 4:59 PM