Mechanics

ENG.LIGHT

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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K Hammerle
February 21, 2010.



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

Hmac300
Feb 27, 2010.