Question about 2000 Ford F150 Flareside SuperCab
I have a 2000 Ford F-150 with a 5.4 Triton V-8. About two weeks ago I suddenly had a hard time starting my truck but it started. On that same day I noticed that the truck with stumble and shutter upon acceleration but would smooth out once the accelerator was let up on. The next three or four days, the truck ran fine. Now it has returned to the same problems on a consistent bais. The truck starts fine and runs fine for about 5 minutes and then starts to vibrate and shutter/stumble upon acceleration but smooths out once the accelerator is let up on.
4.2 ltr missing. 2000 truck, f150. Changed plugs, wires. Ran great for 2 weeks. Started again. Changed coils. Got worse. Changed fuel filter, did nothing. Added injector cleaner and fuel cleaner, nothing. Checked EGR, o.k. It is getting worse. Had new gas about the time it all started.
Posted on Jul 08, 2011
You should be poping a p0303 code with can be several things ,bent vavle, plugs, a coil, plugged cat but it acting same as my truck did and i found a dirty/bad injector was the problem (if she is missing under medium/heavy accerlecation only) rebuilt injecters about 80-90bucks for the set but the basics first pluged air filter, ect....
Posted on Aug 05, 2010
My '99 5.4 F150 is doing the same thing. Stumbling under medium acceleration and runs fine when idling or cruising at a steady speed. But when it comes to quick acceleration, or pulling uphill, it just wants to stutter and shake. I've replaced plugs with no result, but the dang thing wont give me a code to tell me what coil pack is out. Sounds like a bad design flaw to me.
Posted on Oct 26, 2012
Probably one or more of your coil packs are defective. I had the same problem recently. Have someone do a scan and that will tell you which one is going bad
Posted on Feb 07, 2009
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