1995 Chevy Tahoe

Tiny
JUICE803
  • MEMBER
  • 1995 CHEVROLET TAHOE
  • V8
  • 4WD
  • AUTOMATIC
  • 250,000 MILES
How do my 1995 chevy tahoe run so rich. I jus put a new throttle body on it and it still doing the same thing.
Thursday, February 10th, 2011 AT 5:27 AM

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
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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Thursday, March 10th, 2011 AT 4:12 AM

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