1989 GMC C1500 FLOODING WHEN IDLE

1989 GMC C1500
Avatar
FRANK 6251
  • MEMBER
  • 1 POST
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.
Aug 26, 2010 at 9:51 AM
Advertisement
Avatar
RASMATAZ
  • ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
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.
Aug 27, 2010 at 5:29 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.