Mechanics

CHEVY WHINNING SOUND FRONT RIGHT SIDE

1998 Chevrolet Blazer

I recently purchased the above vehicle and at highway speeds hear a whining sound from the right front side. When I activate my 4x4 it automatically goes away.

Once I go back to 2 wheel drive it is ok but the sound returns 10-15 minutes later.

4x4 is operational.I have heard to change the transfer case oil or possibly a relay switch. Any truth to either?
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Jgardiner
May 30, 2007.



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