2002 GMC C2500 eng. Light

Tiny
K HAMMERLE
  • 2002 GMC C2500

Electrical problem
2002 GMC C2500 V8 Four Wheel Drive Automatic

Why does the service eng light come on at 45-65 mph. Goes out when off hyway?

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Sunday, February 21st, 2010 AT 9:48 AM

1 Reply

Tiny
HMAC300
  • EXPERT
  • 45,767 POSTS

You need to have the code scanned to see what is causing the problem. Most auto parts stores will do this for free.

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Saturday, February 27th, 2010 AT 3:27 PM

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