2004 Chevy Tahoe Service 4WD light

2004 CHEVROLET TAHOE
89,000 MILES • V8 • 4WD • AUTOMATIC
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MONROE11
  • MEMBER
  • 1 POST
The service 4WD light comes on each time I put the vehicle in 4WD. I have no owners manual and no idea where to start with this problem. the 4WD is not working and is really needed.
Dec 31, 2009 at 2:25 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
We need to start at the begining. Have you checked to see if there is power to the actuator on the transfer case? Have you checked for vacuum to the front axle?

Let me know.

Joe
Dec 31, 2009 at 10:03 AM
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