97 F150 need help 4.2l V6
#1
97 F150 need help 4.2l V6
Hi all. I am having a issue with my truck running super ruff. I have had a issue recently with it jumping while accelerating. I figured I'd throw a new coil pack on. I have tried two new coil packs. The first replacement would not even run. The second runs but like hell. It is misfiring and shaky. If I put back on the original coil pack it runs perfect. I have replace the wires in the correct firing order and traced them down to make sure.
3 4
2 6
1 5
No matter what I do it runs like hell on the new coil packs but good on old. Any ideas? I'm all out.
3 4
2 6
1 5
No matter what I do it runs like hell on the new coil packs but good on old. Any ideas? I'm all out.
#3
#4
I may have solved the problem. My truck is a 1997and it suggests a Motorcraft DG-533. I finally thought about it and took the Motorcraft part number off the original coil = F5SU-12029-AA. When I search that part number I come back with a Motrcraft DG-535. I am told this doesn't fit my truck. However this is what works on the truck. My thinking is the motor was swapped with a 1999 motor. I searched it saying my truck was a 99 model and the DG-535 coil shows to fit. That is what is on the truck. So I ordered one and it will be here Tuesday. Hopefully I am right.