Where is the input speed sensor located?

2012 CHEVROLET EXPRESS
123,000 MILES • 4.3L • V6 • 2WD • AUTOMATIC
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THEPATCHMAN JUANTORRES
  • MEMBER
  • 1 POST
i replaced the VSS located at the rear of the transmission but i cannot locate the input speed sensor to install it.
Apr 2, 2022 at 6:20 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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STEVE W.
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 15,146 POSTS
The input and output speed sensor assembly is inside the transmission between the valve body and the transmission case. See the attached for the instructions. Check out the diagrams (Below). Let us know what happens and please upload pictures or videos of the problem.
Apr 2, 2022 at 6:53 AM
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