PIP5819B
Service Bulletin Details
Public Details for: PIP5819B
This preliminary information communicates inspection and/or needed repairs for dtc P2714 on a vt40 cvt transmission
- 2023 - 2022 - 2021 - 2020 - 2019 -
Models from 2020
| 2020 BUICK ENCORE GX |
| 2020 CHEVROLET MALIBU |
Models from 2019
| 2019 CHEVROLET MALIBU |
Bulletin No.: PIP5819B Published date: 01/10/2024 Preliminary Information PIP5819B VT40 Transmission Setting DTC P2714 Product Investigation Review Required Models Brand: Model: Model Years: VIN: from to Engine: Transmissions: Buick Encore GX 2020 - 2023 All All All VT40 CVT Automatic (MRG) Chevrolet Malibu 2019 - 2023 All All All VT40 CVT Automatic (MRG) Chevrolet Trailblazer 2021 - 2023 All All All VT40 CVT Automatic (MRG) Involved Region or Country North America and NA exports Condition Some customers may comment on a loss of forward gear, slipping, and/or a check engine light on. Technicians may nd the following DTC set in the Transmission Control Module (TCM) P2714: Transmission Control Solenoid Valve 4 Stuck O Cause Note: This condition may be intermittent or not reproduceable This condition may be caused by the clutch regulator valve sticking in the valve body; Damage to the forward clutch piston and/or wear in the Primary Pulley Bearing Bore causing damage to the case. Correction: Verify DTC P2714 is set current or history . Verify the transmission uid is at the proper level following document 4818020. Note: The transmission uid temperature must be between 60°-80°C (140°-176°F) to properly check the uid level and to perform the following procedures. If the uid level is correct, with the transmission at operating temperature, drive the vehicle and see if there is a slip or lack of engagement in drive. If there is no slip in drive, clear the DTC’S. Drive the vehicle, making sure the vehicle is at operating temperature. If the DTC does not immediately reset and there is no slip condition or no loss of drive felt, perform 3 to 4 WOT accelerations. If the DTC does not reset, replace the valve body (Not the solenoid valve body) and re-evaluate. If DTC P2714 resets, check the following: No forward motion but does have reverse Slips under heavy acceleration The DTC or the concern is repeatable If there is a drop in Primary and Secondary pulley pressure drop due to leak Or if the Primary and Secondary Pulley pressure drop on auto stop -Pressure on auto stop should be around 400 kPa -If below 300 kPa there could be piston seal leak If there is a loss of drive, slipping, the uid has a burnt odor, or any of the above indicators are present, the transmission will need to be disassembled and inspected. With the transmission disassembled, inspect the Forward Clutch Piston for damage along the side as shown. If the Forward clutches are worn and there is damage seen to the Forward Clutch Piston then replace the Foward Clutch Piston and Housing and the applicable apply components as needed If there is no damage to the Forward Clutch Piston, inspect the pump for signs of wear. Note: The rst 2 pictures show the outside of the pump, and the second 2 pictures show the wear that is found internal to the pump when wear to the Primary Pulley Bearing Bore is found . If signs of wear are seen as shown, this indicates the Primary Pulley Bearing has spun in the bore and is allowing the Turbine Shaft to become o center When this happens, it causes a pressure leak. If this concern is found, the transmission will need to be replaced. Note: The Primary Pulley Bearing is installed on the inside of the case on the primary pulley, this area of the transmission cannot be accessed for inspection, inspection of the pump for DTC P2714 and no concern found with the Forward Clutch Piston is critical. Parts Information Description Part Number Quantity Control Valve Body Forward Clutch Piston See Electronic Parts Catalog (EPC) See EPC 1 1 Forward Clutch Plate (Fiber) Forward Clutch Apply Plate Forward Clutch Plate (Waved) Forward Clutch Plate (Steel) Forward Clutch Piston Dam See EPC See EPC See EPC See EPC 2 1 1 1 See EPC 1 Forward Clutch Piston Housing Transmission Assembly See EPC See EPC 1 1 Warranty Information For vehicles repaired under the Powertrain coverage, use the following labor operations. Reference the Applicable Warranties section of Investigate Vehicle History (IVH) for coverage information. Labor Operation 8463690 8465430 8464670 Description Control Valve Body Replacement Forward Clutch Replacement Transmission Replacement Labor Time Use Published Labor Time Use Published Labor Time Use Published Labor Time Version History Version 3 Modi ed 08/23/2021 - Created on. 12/17/2021- Updated model years, added direction to replace the Forward Clutch Piston housing as required 01/03/2024- Updated to add 2023 Model Year © 2024 General Motors. All Rights Reserved.