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2002 GMC Envoy four wheel drive

Tiny
DAN HILL
  • MEMBER
  • 2002 GMC ENVOY
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 89,000 MILES
I would like to know what to look for, because the four wheel drive will not kick in. All 4x4 on sector switch no working when trying to put in the following. All four wheel, lo 4x4, Hi 4x4. The check engine light came on, but shore if that has anything to do with it.
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Saturday, December 13th, 2008 AT 8:31 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Hi:
Have the computer scanned at a nationally recognized parts store to determine why the light is on. Let me know what you find.

As far as the 4wd, you will need to see if you are getting power to the actuator on the transfercase. If it is, the actuator may need replaced. If no, you need to see if there is power to the switch.

Let me know.

Joe
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Saturday, December 20th, 2008 AT 5:09 PM

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