2008 Gmc Sierra High Speed Mis Engine Light Flashing Changed S Plugs Next

2008 GMC SIERRA
60,000 MILES
Avatar
ANONYMOUS
  • MEMBER
  • 1 POST
high speed mis, engine light flashing, changed s plugs. what next?
also smells like cat converter overheating when i shut off, no red glow, but a high speed mis, usually on the highway
Nov 18, 2012 at 9:37 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.