Ogallala,NE | slowzuki - 4/26/2024 05:06
Check for bad coil packs. Ours would misfire and buck under high load then feel ok with revs.
Fuel pump and fuel pump module common problems on them. Some of the newer ones will see failing fuel pump as ethanol and keep bumping the ethanol % in the computer to try to compensate but that only works at low loads. There is no rail pressure connection so you need fittings to test it, it will fall on its face and run like a dog when you plant it.
Really need to stick a scan tool on it and watch the values.
Thanks. I will put scanner on it when I get to the shop. Which values do I need to watch? |
2010 f250 5.4l more gutless than normal
