1992 GMC Truck idleing

1992 GMC TRUCK
140,000 MILES • V8 • 4WD • AUTOMATIC
Avatar
XXXTAT2GUYXXX
  • MEMBER
  • 1 POST
454 eng.

i have a gmc k3500 dually.all of a sudden it idles up and down,up and down non stop fast and i lose power.it doesn't stall but sounds like it wants too
Oct 4, 2009 at 7:38 PM
Advertisement
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.