Input Needed!
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New User
Joined: Dec 2008
Posts: 5
Likes: 0
From: Franklin MA
Input Needed!
Hi all, I have an 04 F250 4x4 5.4 v8. When i shift into neutral from park or drive the truck idles down low almost to the point where it would stall. Same thing happens when i shift from drive to reverse which i tend to do a lot since the truck has a plow on it. Was wondering if anyone could give me input on what could be causing this.
Thanks
Thanks
Post Fiend
Joined: May 2006
Posts: 10,007
Likes: 4
From: Central Florida
TPS could be, but I'd start with checking for vacuum leaks and cleaning the IAC. To check for vac leaks, with the engine running, spray starting fluid around the hoses. If the engine rev's up, then you sprayed near a leak.
To clean the IAC, remove it from the throttle body and hose it out with carb cleaner.
To clean the IAC, remove it from the throttle body and hose it out with carb cleaner.
