Originally posted by Ra\/en:
Then no. I do not have an exhaust leak. I do not hear ticking or hissing.




You have a vacuum leak that is aggravated when the extreme temps cause everything to shrink.

See if your shop has a smoke tester. They can make finding a leak much quicker.

Common leaks are the intake gaskets, the PVC valve hose, and around the IAC. There's a real mess of plumbing to be looked at.

Steve


98 Contour SE Sport 2.5 Duratec ATX The wifey's car 89 Taurus SHO - 246K miles 94 SHO ATX - 190K 1997 F-150 5.4L ATX - The Workhorse 150K. ANY THREAD WITH "OMG" or "WTF" ETC IN THE TITLE WILL BE IGNORED!