I have a 05 with 117k miles on it, and am getting a multiple misfire code. Truck runs good at idle and under normal acceleration. If you WOT throttle truck from a dead dig or from any speed it bucks and misses like crazy through the entire RPM range. Any idea what it could be? I have cleaned throttle body, new air filter, and fuel filter. Also have ran fuel cleaner through a few tanks and nothing has helped it. I was wondering if these trucks have a EGR valve on it?
prolly a coil or a coils are about due, along with spark plugs. I had my plugs changed at 60K and the gaps were worn the hell out! had to have one of my coils replaced around 57K cuz it took a dump.
I was thinking it could be some plugs but then from what I have heard if you had one or even three cylinders missing it would have shown up on the scanner. This showed a random multiple misfire code which lead me to think I have several cylinders missing.
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.