2013 F-150 5.0 running rough
2013 F-150 5.0L 2WD Got a CEL and took it to parts store and their OBDII reader said cyl # 7 misfire. Truck seemed to run fine and it went away pretty quickly, so I just disregarded it. About 3...
Forum Discussion
boogie_4wheel wrote:
Start easy, swap #5 and #7 coils; regardless of the new coil let's prove the new one.
Was there any build up on the plug that you removed? Evidence of oil consumption?
Is this a cold misfire only?
Misfire when not under load has me wanting to think oil ingestion (stem seal), or weak compression. If the injectors are halfway easy to get to, swap their location as well to see if the problem follows the injector.
The original plugs with about 120K miles on them looked great, no evidence of oil consumption or any other indications of internal problems.
