2015-2022 Cadillac Chevrolet GMC

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NHTSA ID Number: 10222670

Manufacturer Communication Number: 22-NA-184

Summary

This informational bulletin advises the technician of possibly installing the incorrect 1-2-7-8-R clutch fluid passage seal and which seal should be used with measurements of the seal.

 


Condition

Technician’s may find a no movement condition after replacement of the valve body on the 8L45 or 8L90 automatic transmission.

 

Cause

This may be due to the incorrect 1-2-7-8-R clutch fluid passage seal being installed or it is missing.

 

Correction

Technician should remove the transmission valve body and inspect for the 1-2-7-8-R clutch fluid passage seal to be installed correctly.

If the 1-2-7-8-R clutch fluid passage seal was installed during the valve body, then the technician will need to measure the length of the seal to make sure the correct seal was installed.

The 8L45 seal part number is 24262438 and the seal has no ID notches. This seal is 33.5 MM (1,32 in) tall.

The 8L90 seal part number is 24259218 and the seal has 5 ID notches. This seal is 23.1 MM (0.91 in) tall.

 


88 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 2015-2017
CADILLAC ESCALADE ESV 2015-2017
CHEVROLET CAMARO 2016-2022
CHEVROLET COLORADO 2017-2022
CHEVROLET CORVETTE 2015-2019
CHEVROLET EXPRESS 2017-2022
CHEVROLET SILVERADO 1500 2015-2022
CHEVROLET SUBURBAN 2015-2017
GMC CANYON 2017-2022
GMC SAVANA 2017-2022
GMC SAVANA 1500 2017
GMC SAVANA 2500 2017-2018
GMC SAVANA 3500 2017-2018
GMC SIERRA 1500 2015-2022
GMC YUKON DENALI 2015-2017

 


1 Associated Document

Manufacturer Communications

Bulletin No.: 22-NA-184
Date: September, 2022

https://www.nhtsa.gov/recalls?nhtsaId=10222670

MC-10222670-0001.pdf 509.39KB

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