8L45 8L90 No Movement After Valve Body Replacement – 2015-2023 Cadillac Chevrolet GMC

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NHTSA ID Number: 10220314

Manufacturer Communication Number: 22-NA-176

Summary

This technical bulletin provides information on a possible bolt and guide pin that may be missing from the control valve which will need to be installed to correct the repair.

 


Condition

Some technicians may comment on no movement after the valve body replacement.

 

Cause

This may be caused by a plug and retaining bolt missing on valve body.

 

Correction

Inspect for the plug (1) and retaining bolt (2) as noted in the graphic above.

If the plug and retaining bolt are missing, fill out the WPC part request form and send it to the WPC following the instructions below.

⇒ The plug and retaining bolt are packaged as a kit.

⇒ The kit part number is WPC 853 and can be obtained from the Warranty Parts Center (WPC) using the TSP Dealer Request Form This form is located on:

Global Connect<Service Department<Service Forms Application<General Information tab<TSP Dealer Request Form.
Instructions for submitting are on the form.

Request WPC###.

 


117 Affected Products

Vehicles

MAKE MODEL YEAR
CADILLAC ATS 2016-2019
CADILLAC ATS-V 2016-2018
CADILLAC CT4 2020-2022
CADILLAC CT6 2016-2018
CADILLAC CTS 2016-2019
CADILLAC CTS-V 2016, 2018
CADILLAC ESCALADE 2016-2023
CADILLAC ESCALADE ESV 2016-2023
CHEVROLET CAMARO 2016-2022
CHEVROLET CORVETTE 2015-2019
CHEVROLET EXPRESS 2017-2022
CHEVROLET SILVERADO 1500 2016-2022
CHEVROLET TAHOE 2015-2022
CHEVROLET TAHOE POLICE PURSUIT 2015-2016
GMC SAVANA 2016-2022
GMC SAVANA 1500 2016-2017
GMC SAVANA 2500 2016-2018
GMC SAVANA 3500 2016-2018
GMC SIERRA 1500 2016-2022
GMC YUKON 2015-2022
GMC YUKON DENALI 2015-2019
GMC YUKON DENALI XL 2015-2018
GMC YUKON XL 2015-2022

 


1 Associated Document

Manufacturer Communications

Bulletin No.: 22-NA-176
Date: September, 2022

https://www.nhtsa.gov/recalls?nhtsaId=10220314

MC-10220314-0001.pdf 100.949KB

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