2004 Ford F 150 Engine Idles Low Almost Dies After Revving Just Replaced

86,000 MILES
Avatar
ANONYMOUS
  • MEMBER
  • 1 POST
ENGINE idles low and almost dies after revving. Just replaced battery, and this problem started after that.
Jan 27, 2013 at 8:07 AM
Avatar
CARADIODOC
  • ✓Experienced Mechanic
  • 34,398 POSTS
Been waiting for someone else to reply, but since no one has, I can share how this is solved on Chrysler products. The Engine Computer loses its memory when you disconnect the battery. It has to relearn "minimum throttle" before it will know when it must be in control of idle speed. As with most other things, Chrysler makes that real easy. To meet the conditions for the relearn to take place, drive at highway speed with the engine warmed up, then coast for at least seven seconds without touching the pedals.

Your truck will also have to go through a relearn. Sorry that I don't know the exact procedure but it usually just involves driving it.
Jan 28, 2013 at 12:45 AM
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Frequently Asked Problems for This Vehicle