Service 4WD Light

1999 CHEVROLET BLAZER
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MAYANK1953
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  • 1 POST
Electrical problem 6 cyl Four Wheel Drive Automatic 80000 miles

My service 4WD light is on, and my 4 x 4 switches are not lite up. Therefore, I cannot tell if I am in 2 hi or 4 hi. What could be the cause of this?
Nov 18, 2008 at 7:14 PM
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ZEIERIZED
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  • 2 POSTS
I have the same problem with my 99 silverado 2500.

Your answer could be my answer and vice versa.

Someone please help us!!!!
Dec 1, 2008 at 1:12 PM
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STRAILER
  • CERTIFIED EXPERT
  • 53,854 POSTS
Hello,

These trucks had a problem with the 4x4 control switch. I would try that first.

Please let us know what you find.

Cheers, Ken
Mar 7, 2018 at 3:15 PM
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