1989 GMC C1500 FLOODING WHEN IDLE

Tiny
FRANK 6251
  • MEMBER
  • 1989 GMC C1500
Engine Mechanical problem
1989 GMC C1500 V8 Two Wheel Drive Automatic

I have a 1989 gmc c 1500 piclup. It runs good, but when it is ideling it floods. Sometimes dies. We have done everything we can think of to fix the problem. New sensors, carb kit. Filters etc. Any advice you could give would be greatly appericiated.
Thursday, August 26th, 2010 AT 9:51 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Running rich:

1. Fuel pressure not within specs. Can be cause by restricted fuel return line or defective fuel pressure regulator.
2. Defective Oxygen Sensors.
3. Leaking injectors.
4. Coolant temperature sensor out of calibration.
5. Restricted air intake system.
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Friday, August 27th, 2010 AT 5:29 AM

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