2003 Ford Explorer cylinders 1, 2, & 3 are fouling
2003 FORD EXPLORER
What could cause bank one to run rich and foul out the plugs. I have changed both o2 sensors on bank one, put in new plugs and wires. The truck stutters very bad when I put it on drive and have my foot on the brake.
have the same problem?
Thursday, January 14th, 2010 AT 11:43 AM
I want you to check fuel pressure, and fuel pressure drop off. I would like to know if you have fuel injectors that are sticking.
Here is a how to. Remember, pay special attention to the fuel pressure drop off. That is when you shut the key. THe pump stops, but the system should maintain pressure for some time.