Transmission or coil packs?
#1
Transmission or coil packs?
I have an 06 king ranch and have changed the spark plugs and now having issues with what feels like the engine but could also be the drive train... The truck sputters when going down hill and it seems to shift fine but it does the sputter both up and downhill... Does anyone have any idea as to what this could be?
#2
Needs isopropyl in the gas and a tune= A FUEL FILTER.
#3
Certified Ford Technician
what spark plugs did you put in? I put autolite plugs in and after 5,000 miles got a what felt like binding under heavy acceleration and high RPM's. It drove me nuts. Finally put motorcraft plugs back in problem was gone. Some of the autolite plugs looked like combustion gases were escaping between the metal and ceramic but none of the plugs were broken or damaged or loose. I also had no misfire codes or misfire data stored in the PCM. I had also run a relative compression test and all cylinders read 100%