Fuel problem

Tiny
EHOUSE
  • MEMBER
  • 1990 CHEVROLET TRUCK
  • V8
  • 4WD
  • AUTOMATIC
  • 114,111 MILES
I have a 1990 chevy 2500k that seems to be getting to much fuel where should I start to fix
Friday, January 14th, 2011 AT 1:09 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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Friday, January 14th, 2011 AT 1:48 AM

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