88 XLT Ranger
Member
- Joined
- Jul 23, 2010
- Messages
- 357
- Reaction score
- 0
- Points
- 16
- Age
- 61
- Location
- Pollock Pines Ca
- Vehicle Year
- 1988
- Make / Model
- ford
- Engine Size
- 2.9L
- Transmission
- Automatic
Spark Plug fouling issue
I got my problem area figured out number 3 cylinder keeps getting fuel fouled. Its due to non evaporated fuel "rich mixture" it does it most when engine is under a load. I have changed the fuel injector for that cylinder I have also changed the MAP sensor, O2 sensor, TPS sensor, checked fuel pressure many of times in the driveway its good
Its an on and off deal run like crap popping than once the fuel evaporates off the plug it runs perfect. Its a pain in the Azzzz when it does it now I get out change the plug where good to go until the next hill to climb
I got my problem area figured out number 3 cylinder keeps getting fuel fouled. Its due to non evaporated fuel "rich mixture" it does it most when engine is under a load. I have changed the fuel injector for that cylinder I have also changed the MAP sensor, O2 sensor, TPS sensor, checked fuel pressure many of times in the driveway its good
Its an on and off deal run like crap popping than once the fuel evaporates off the plug it runs perfect. Its a pain in the Azzzz when it does it now I get out change the plug where good to go until the next hill to climb