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Summary of Content
Bulletin No.:
Service Bulletin
Date:
22-NA-176
September, 2022
TECHNICAL
Subject:
8L45 8L90 No Movement After Valve Body Replacement
This bulletin replace PIP5741A. Please discard PIP5741A.
Brand:
Model:
ATS
Cadillac
Chevrolet
to
2016
2019
VIN:
from
Engine:
Transmission:
to
M5N,M5U
CT4
2020
2023
M5N
CT6
2016
2018
M5N,M5X
CTS
2016
2019
M5N,M5U
Escalade
2016
2023
M5U
Camaro
2016
2022
M5T,M5U
Corvette
2015
2019
M5U
Express
2017
2022
M5U
Silverado
2016
2018
M5U
Silverado 1500
2019
2021
MQE
2022
2022
M5X, MQE
Tahoe
2015
2022
M5N
Savana
2016
2022
M5U
Silverado 1500 - LTD
(RPO J21, VIN Digit
5 = W/Y)
Silverado 1500 - New
(RPO J22, VIN Digit
5 = A/D)
GMC
Model Year:
from
Sierra
2016
2018
M5U
Sierra 1500
2019
2021
M5U
2022
2022
M5X, MQE
2015
2022
M5U
Sierra 1500 - Limited
(RPO J21, VIN Digit
5 = 8/9)
GMC Sierra 1500 New (RPO J22, VIN
Digit 5 = H/U)
Yukon
Involved Region or Country
North America
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.
Copyright 2022 General Motors LLC. All Rights Reserved.
Page 2
September, 2022
Bulletin No.: 22-NA-176
6144951
Inspect for the plug (1) and retaining bolt (2) as noted in the graphic above.
Correction
5619627
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
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Summary of Content
Bulletin No.:
Service Bulletin
Date:
22-NA-176
September, 2022
TECHNICAL
Subject:
8L45 8L90 No Movement After Valve Body Replacement
This bulletin replace PIP5741A. Please discard PIP5741A.
Brand:
Model:
ATS
Cadillac
Chevrolet
to
2016
2019
VIN:
from
Engine:
Transmission:
to
M5N,M5U
CT4
2020
2023
M5N
CT6
2016
2018
M5N,M5X
CTS
2016
2019
M5N,M5U
Escalade
2016
2023
M5U
Camaro
2016
2022
M5T,M5U
Corvette
2015
2019
M5U
Express
2017
2022
M5U
Silverado
2016
2018
M5U
Silverado 1500
2019
2021
MQE
2022
2022
M5X, MQE
Tahoe
2015
2022
M5N
Savana
2016
2022
M5U
Silverado 1500 - LTD
(RPO J21, VIN Digit
5 = W/Y)
Silverado 1500 - New
(RPO J22, VIN Digit
5 = A/D)
GMC
Model Year:
from
Sierra
2016
2018
M5U
Sierra 1500
2019
2021
M5U
2022
2022
M5X, MQE
2015
2022
M5U
Sierra 1500 - Limited
(RPO J21, VIN Digit
5 = 8/9)
GMC Sierra 1500 New (RPO J22, VIN
Digit 5 = H/U)
Yukon
Involved Region or Country
North America
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.
Copyright 2022 General Motors LLC. All Rights Reserved.
Page 2
September, 2022
Bulletin No.: 22-NA-176
6144951
Inspect for the plug (1) and retaining bolt (2) as noted in the graphic above.
Correction
5619627
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
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