2001 Ford F-150, 5.4L V8 (triton), 4R70W transmission, 4X4:
Rebuld transmission (with new valve body)
Rebuild engine: new pistons (and rings), new road berings, new/reconditioned cylinder heads (with time-sert inserts in all 8 sprk-plug locations), new intake manifold, new exhaust manifolds, new sparkplugs, new starter, new gaskets ans seals, new EGR valve.
Engine runs great. Just this silly P0306 code, even after I changed the coil-on-plug and the sparkplug.
I would greatly appreciate your input on this matter.
Kindest regards.
Florian
See the full list of causes here -
https://www.engine-codes.com/p0306_ford.html
Also -
https://carkiller.com/scottykilmer/qa/misfire-4/
P0306 is a cylinder misfire in cylinder 6.
Thank you Sir,
I knew; P0306 is a Cylinder 6 misfire. I am trying to determine what is the root cause of it.
The engine was rebuild; no blow-by (no loss of compression), new coils, new spark-plugs (Bosch).
All injectors are working (checked them with my stetoscope).
I am lost on this one....