Installation Procedure
- If replacing the transmission, record the TUN prior to installing the new transmission. Transmission Identification Information
- Raise the transmission with the transmission jack and position the transmission to the engine.
- CAUTION:
Refer to Fastener Caution .
Install the transmission bolts (1, 2) and tighten to 58 N.m (43 lb ft).
Install and tighten the 3 transmission bolts (1) to 58 N.m (43 lb ft).
- Remove the transmission jack.
- Align the mark of the flex plate to the mark on the torque converter for reassembly.
- NOTE:
If reusing the torque converter bolts, clean the threads and apply threadlocker to the threads prior to installation. Adhesives, Fluids, Lubricants, and Sealers
Install the torque converter to flex plate bolts (1) and tighten to 60 N.m (44 lb ft),
- Install the starter. Starter Replacement (LGX)
- Using the engine support fixture raise the powertrain into place.
- Install the left transmission mount to the transmission. Transmission Mount Replacement
- Install the front transmission mount to transmission bolts. Transmission Front Mount Replacement .
- Install the left side front wheel drive half shaft. Front Wheel Drive Half Shaft Replacement - Left Side
- Install the power transfer unit from the vehicle. Power Transfer Unit Case Replacement (LGX)
- Install the drivetrain and front suspension cradle. Drivetrain and Front Suspension Cradle Removal and Installation
- Remove the engine support fixture. Engine Support Fixture
Install the upper transmission to engine bolts (1, 2, 3) and tighten to 58 N.m (43 lb ft).
Position the heater water auxiliary pump (2) to it's original position.
- Install the heater water auxiliary pump bolt (1) and tighten to 22 N.m (16 lb ft).
Reposition the body wiring harness bracket with wiring harness (3) as necessary.
- Install the body wiring harness bracket bolt (2) and tighten to 22 N.m (16 lb ft).
- Connect the auxiliary fluid accumulator electrical connector (1).
Connect the transmission fluid cooler outlet pipe (1, 2) at the thermal bypass valve. Transmission Fluid Cooler Outlet Pipe Replacement (LGX, with V08) , or Transmission Fluid Cooler Outlet Pipe Replacement (LCV, LGX, without V08)
Connect the control valve body transmission control module electrical connector (1), then clip the wiring harness to the cover.
Install the electrical harness bracket (2) to the control valve body cover.
- Install the electrical harness bracket nuts (1) and tighten to 9 N.m (80 lb in).
- Clip the engine wiring harness to the transmission.
- Connect the electronic transmission range selector manual park release cable to the transmission. Electronic Transmission Range Selector Manual Park Release Cable Replacement (LGX, LCV)
- Fill the transmission with correct fluid. Adhesives, Fluids, Lubricants, and Sealers
- Check transmission fluid level. Transmission Fluid Level and Condition Check
- Install the battery tray. Battery Tray Replacement
- Transmission internal service/overhaul
- Valve body repair or replacement
- Control solenoid valve assembly replacement
- TCM software/calibration update
- Any service in response to a shift quality concern
- Reprogram the transmission. Q77 Transmission Control Solenoid Valve Characterization Programming
- Road test the vehicle.
It may be difficult to access the transmission unique number (TUN) with the transmission installed in the vehicle.
The Transmission Adaptive Values Learn procedure must be performed when one of the following repairs have been made to the vehicle. Failure to perform the procedure after one of the following repairs may result in poor transmission performance, as well as transmission DTCs being set: