Awd intermittently not working but 4 low does

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Douellette92

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New here to the forum.

I have an 03 Yukon xl slt auto ride. It has awd with an option to go in 4 low.

I noticed that sometimes the awd doesn't kick in, yet the 4 low works every time.

I have an issue with right front wheel speed sensor. I have to turn traction control off or it kicks on sometimes when I drive.

Coukd this cause the awd to work intermittently?
 
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