2002 GMC Envoy check engine light reduce engine power

2002 GMC ENVOY
180,000 MILES • 6 CYL • 2WD • AUTOMATIC
Avatar
MAGVIEW
  • MEMBER
  • 1 POST
Reduce engine power . what this mean?
Aug 28, 2008 at 5:06 PM
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.
Advertisement
Avatar
MMPRINCE4000
  • CAR REPAIR CONTRIBUTOR
  • 8,548 POSTS
Have the PCM scanned at most autoparts stores for free.

It could simply be a sensor bad that is causing it to run rich, or a low coolant level. The scan should tell you what the problem is.
Oct 21, 2008 at 7:23 AM
Advertisement