97ranger4x4
New Member
- Joined
- Aug 9, 2007
- Messages
- 1,034
- Reaction score
- 3
- Points
- 0
- Location
- Sacramento
- Vehicle Year
- 1997
- Make / Model
- Ford
- Engine Size
- 4.0
- Transmission
- Automatic
I have a couple of questions.
I just had the shop diagnose my truck since I couldnt do it myself with the help of my GF stepdad. Basically I had a P0300 random Misfire, P0303 Cyl 3 Misfire, P0305 Cyl 5 misfire, P0174 Bank 2 Lean codes.
He said that the injector on Cyl 5 was causing the misfire. He said cyl 3 isnt misfireing and if I clear the CEL, it should come back without the Cyl 3 misfire.
He said he did a relative compression test and it passed twice.
He said when I take off my intake he said to check for shorts within the wireing. He said when he had it hooked up to their monitoring system, the injector was going back and forth between working and not. I think the injector itself is fine it might just be a bad connection. Note I replaced all 6 injectors with OEM motorcraft injectors 3 months ago. I also replaced all 6 plugs with motorcraft plugs and new wires.
But none the less, I need to know how to test the wires for the injector? I have the factory service manuals at home, but I figured it would be best to post here where some great minds can give input.
When I get home I will grab my service manuals and read up on what the procedure is for testing the injectors.
I just had the shop diagnose my truck since I couldnt do it myself with the help of my GF stepdad. Basically I had a P0300 random Misfire, P0303 Cyl 3 Misfire, P0305 Cyl 5 misfire, P0174 Bank 2 Lean codes.
He said that the injector on Cyl 5 was causing the misfire. He said cyl 3 isnt misfireing and if I clear the CEL, it should come back without the Cyl 3 misfire.
He said he did a relative compression test and it passed twice.
He said when I take off my intake he said to check for shorts within the wireing. He said when he had it hooked up to their monitoring system, the injector was going back and forth between working and not. I think the injector itself is fine it might just be a bad connection. Note I replaced all 6 injectors with OEM motorcraft injectors 3 months ago. I also replaced all 6 plugs with motorcraft plugs and new wires.
But none the less, I need to know how to test the wires for the injector? I have the factory service manuals at home, but I figured it would be best to post here where some great minds can give input.
When I get home I will grab my service manuals and read up on what the procedure is for testing the injectors.