Question about 1999 Chevrolet Silverado 1500

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Service 4wd light comes on and off.4wd works fine.

Light comes on after a few miles. Been doing this for years.
Have used 4wd very few times. Have checked all fluids.

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I had the same problem with mine. Also, my lights on my 4wd switch would all go out intermittently. I replaced the switch on the dashboard (~$80 at the dealership) and have not had the problem since. I would try this before replacing the encoder motor, since that costs somewhere in the neighborhood of $350.

Posted on Dec 10, 2008

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USUALLY THE ENCODER THAT IS IN THE MOTOR TO SWITCH IT. CAN ALSO BE THE SWITCH. BOTH HAVE CAUSED PROBLEMS

Posted on Dec 09, 2008

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