2014 - 2019 Cadillac ATS-V CT4-V CTS-V: Service Bulletin: #PIP5784: 8L45 8L90 Automatic Transmissions With No Movement After Valve Body Replacement - (Mar 1, 2021)
Estimated Reading Time: 2 Minutes#PIP5784: 8L45 8L90 Automatic Transmissions With No Movement After Valve Body Replacement - (Mar 1, 2021)
Brand: |
Model: |
Model Year: |
VIN: |
Engine: |
Transmission: |
||
---|---|---|---|---|---|---|---|
from |
to |
from |
to |
||||
Cadillac |
ATS Models |
2016 |
2019 |
All |
All |
All |
M5N M5T M5U |
Cadillac |
CT4 Models |
2020 |
2021 |
All |
All |
All |
M5N |
Cadillac |
CT6 |
2016 |
2018 |
All |
All |
All |
M5N M5X |
Cadillac |
CTS Models |
2016 |
2019 |
All |
All |
All |
M5N M5U |
Cadillac |
Escalade Models |
2015 |
2017 |
All |
All |
All |
M5U |
Chevrolet |
Camaro |
2016 |
2021 |
All |
All |
All |
M5T M5U |
Chevrolet |
Colorado |
2017 |
2021 |
All |
All |
All |
M5T |
Chevrolet |
Corvette |
2015 |
2019 |
All |
All |
All |
M5U |
Chevrolet |
Express |
2017 |
2021 |
All |
All |
All |
M5U MQD |
Chevrolet |
Silverado |
2015 |
2018 |
All |
All |
All |
M5U M5X |
Chevrolet |
Silverado 1500 LD |
2019 |
All |
All |
All |
MQE |
|
Chevrolet |
Silverado 1500 Mew Model |
2019 |
All |
All |
All |
MQE |
|
Chevrolet |
Silverado 1500 |
2020 |
2021 |
All |
All |
All |
MQE |
GMC |
Canyon |
2017 |
2021 |
All |
All |
All |
M5T |
GMC |
Savana |
2017 |
2021 |
All |
All |
All |
M5U MQD |
GMC |
Sierra |
2015 |
2018 |
All |
All |
All |
M5U M5X |
GMC |
Sierra 1500 Limited |
2019 |
All |
All |
All |
MQE |
|
GMC |
Sierra 1500 New Model |
2019 |
All |
All |
All |
MQE |
|
GMC |
Sierra 1500 |
2020 |
2021 |
All |
All |
All |
MQE |
GMC |
Yukon Denali |
2015 |
2017 |
All |
All |
All |
M5U |
Involved Region or Country |
North America |
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 tall.
The 8L90 seal part number is 24259218 and the seal has 5 ID notches. This seal is 23.1 MM tall.
Version
1
Modified
03/01/2021 — Created