Fuel problem

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

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.