Service 4 wheele drive !!!

CHEVROLET SILVERADO
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BARRY PUCKETT
  • MEMBER
  • 2 POSTS
I have a 1999 chevy z71 4wheel drive, 119,000 miles on it. It has a 5.3 v8 in it.

My question is the service 4 wheel drive light comes on until you cut truck off. Then it might be wks. before it comes on again. Any ideas?

When it is on you can not change to 4 wheel drive.

I have notice before the truck sounded like it was in 4 wheel but the push button said it was in 2 wheel.

thanks,
Barry
Sep 3, 2007 at 5:57 AM
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CLY
  • ✓Experienced Mechanic
  • 308 POSTS
My buddy had the same problem with his 99. The light finally came on and stayed on. He ended up replacing the encoder motor on the transfer case to correct the condision.

Cly
Sep 3, 2007 at 11:45 AM
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