1993 Ford Explorer plugs on one side fuel fouling

Tiny
ALLENHUDSON91
  • MEMBER
  • 1993 FORD EXPLORER
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 96,000 MILES
I have a 93 Ford Explorer 4.0 XLT all three of the plugs are fuel fouling on the passenger side of the engine, the other side is fine. I have been trying to figure this out for months. They foul within 10 minutes of driving. Can the Electronic Engine Control cause this? I have brand new plugs and wires, so I know its not those, the plugs were fouling before I changed them out.
Wednesday, February 10th, 2010 AT 3:06 PM

4 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,182 POSTS
Have you checked the coil? Also, have you checked fuel pump pressure to make sure the regulator is working properly?

Let me know.

Joe
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Thursday, February 11th, 2010 AT 10:53 AM
Tiny
ALLENHUDSON91
  • MEMBER
  • 8 POSTS
No, I havent checked the coil yet. I was told that since there was only one coil, if it messed up, it would affect both sides of the engine, not just one. I havent checked the fuel pump pressure, but I replaced the fuel regulator because my old one was leaking into the vacuum lines.
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Thursday, February 11th, 2010 AT 2:54 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,182 POSTS
I would still like to make sure the fuel pressure is good.
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Thursday, February 11th, 2010 AT 5:13 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,182 POSTS
Hi:
I received our conversation back, but there was no update from you on it. Did the computer not send it?
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Thursday, February 11th, 2010 AT 10:12 PM

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