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1992 Ford Bronco running rich

Tiny
ALEX ANDERS
  • MEMBER
  • 1992 FORD BRONCO
Engine Performance problem
1992 Ford Bronco V8 Four Wheel Drive Automatic

i got a 1992 ford bronco and never had any problems with it. Its been runing a little rich for a while but never thought to much about it. Intell it stalled on me I oppen the hood to find brake fluid all over it by the master cyilnder. Its now runnig realy rich and runnig really rough there no vacum leak and all the sensors seam to be fine
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Friday, September 3rd, 2010 AT 6:51 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Probable causes of an engine running rich are as follows:

1. Excessive fuel pressure can be cause by restricted fuel return line or defective fuel pressure regulator.
2. Defective Oxygen Sensors.
3. Leaking injectors and fuel pressure regulator.
4. Coolant temperature sensor out of calibration.
5. Restricted air intake system.
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Saturday, September 4th, 2010 AT 5:08 AM

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