I recently got problem with high idle on my Ford Mondeo Ghia 2004 2.0l
When I press down the clutch while driving it hangs around 2k-3k rpm.
When I stop at redlight it usually slowly go down to around 1k rpm, if I press the break it usually goes down faster.
When the engine is warm and running steady around 1k rpm, I tried to disconnect the IAC but it's not noticeable, should not the rpm decrease or engine stall if I disconnect it?
When driving whithout the IAC connected. The car runs more smoothly, and no high rpm's while pressing down the clutch.
I think the IAC is working as it should though, when it's connected I can see that it compensates when turning on the AC.
My guess is vacuum leaks, I sprayed with gas but can't seem to find a leak.
Read that it's common with leak on a PVC pipe, where is this pipe located?
Is there any other common places for vacuum leaks?
Do you have any other ideas what might be the problem?
Edited by HenrikSWE, 09 June 2013 - 08:08 PM.