1990 Gmc Truck Hi 4 3 Small Motor Races Started Changed Carb Base Gasket Carb

1990 GMC TRUCK
100,000 MILES
Avatar
ANONYMOUS
  • MEMBER
  • 1 POST
Hi I have a 4.3 small truck and the motor races when started I changed the carb base gasket,carb idel up sol,computer temp sender,even blocked the egr valve any ides.
Dec 9, 2012 at 2:43 PM
Advertisement
Avatar
HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
scan for codes and check fuel pressure first. check for a vacuum leak
Dec 9, 2012 at 3:58 PM
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.