The truck will not shift to four wheel drive

Tiny
AIRBORN870
  • MEMBER
  • 2017 CHEVROLET 1500
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 45,000 MILES
The truck will not shift to four wheel drive. When I turn the selector knob on the dash it will not even try to change the light onto the two wheel mode.
Thursday, April 5th, 2018 AT 10:37 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,895 POSTS
It sounds like the transfer case encoder is out but to be sure lets start by checking of the fuses.

Here is a guide to help us get started:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Also, lets run the codes.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Here are the the fuse panels check all fuses with the key on and how to replace the encoder motor if the fuses are okay. Check out the diagrams (Below). Let us know what happens and please upload pictures or videos of the problem.
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Friday, April 6th, 2018 AT 12:30 PM

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