Four wheel low not engaging

1999 CHEVROLET TAHOE
178,600 MILES • 5.7L • V8 • 4WD • AUTOMATIC
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  • 3 POSTS
Hard clunk and failure to engage when shifting to four wheel drive low from two or four wheel drive high only when engine (or other components) is hot. Shifts fine when cold.
Jan 14, 2019 at 7:34 AM
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STRAILER
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  • 53,854 POSTS
Hello,

It sounds like you have an encoder that is not working correctly. Here are diagrams so you can check it out:

Check out the diagrams (below). Please let us know what happens.
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Jan 16, 2019 at 3:32 PM