I had similar problem on my 2001 Escape. I tried replacing one of the airflow sensors first - thinking it was an easy fix - but no. My check engine light was even on.
The problem for mine, was the top rear of the v6 engine, there are some rubber hoses attached. In the center hose, it goes down - around to right, and enters the right side of engine. This is the PCV deep in there on right.
Inspect the TOP REAR of this tube where it curves downward. The hose may have collapsed and mine had a crack/hole in it.
This was a cheap/easy fix of pulling off hose and putting back on. The REPLACEMENT hose had MUCH MORE thick rubber, and even a built-in metal clamp. Clearly a re-engineered replacement to fix a known problem part.
Get your Ford part guy to take a look and he/she can get the part number directly from the hose.
Anyway, cleared it up. Aparently Ford SUVs and Pickups are notorious for having intake air leaks - as they are all cheap hoses and external to engine.
Monday, May 26th, 2008 AT 3:26 PM