Installation Procedure

WARNING: This page is about a different variant/trim than selected.

Courtesy of GENERAL MOTORS COMPANY

NOTE:
If service part comes with seal protector then use inner seal protector ring to slip the seal lip over the crankshaft snout, instead of EN-52446-2 Seal Protector.

Install the EN-52446-2 Seal Protector (1) at the crankshaft.
Install the 4 EN-52446-4 Studs (2).
Install and hand tighten the 4 EN-52446-5 Nuts (3).
Courtesy of GENERAL MOTORS COMPANY
NOTE:
- Observe the locations for additional sealer (2) while applying the sealant path.
- The bolts must be installed and fastened to final torque specification immediately after the component is installed.
Clean all sealing surfaces.
Ensure proper use of room temperature vulcanizing (RTV) sealant. Use of Room Temperature Vulcanizing (RTV) and Anaerobic Sealant
Apply a 4.0 mm (0.158 in) bead of sealer along the timing chain lower cover sealing path (1), dimension a. Increase the bead to 6.0 mm (0.236 in) at the two locations (2), dimension b. Adhesives, Fluids, Lubricants, and Sealers
Courtesy of GENERAL MOTORS COMPANY

NOTE:
If service part comes with seal protector then use inner seal protector ring to slip the seal lip over the crankshaft snout, instead of EN-52446-2 Seal Protector.

Align the timing chain lower cover (1) with the 2 transmission locating pins (2).
Timing Chain Lower Cover (1) - Install NEW
Check that the crankshaft rear oil seal sits correctly on the crankshaft.
Remove the EN-52446 Rear Crankshaft Seal Installer (3).
Courtesy of GENERAL MOTORS COMPANY

Timing Chain Cover Bolt (1, 2) - Install [16x]

CAUTION:

Refer to Fastener Caution .

Timing Chain Cover Bolt (1, 2) - Tighten in sequence [16x] - Fastener Specifications
Reposition hose(s) as needed.
Courtesy of GENERAL MOTORS COMPANY

Install the EN-49979 Crankshaft Holder (1) with EN-956-1 Extension (3).
Courtesy of GENERAL MOTORS COMPANY

Automatic Transmission Flex Plate (1) - Install
If NEW threaded components are being installed, loosen the adhesive using a metal pick or similar tool before proceeding. If threaded components are reused, prepare the threaded components using the following steps:
1. Remove any loose cured adhesive from the external threads of the components using a lint free cloth.
2. Thread the cleaned components into the internal mating threads and remove to loosen trapped cured adhesive.
3. Apply thread locking adhesive to the external threads of the components. Adhesives, Fluids, Lubricants, and Sealers
4. Ensure there are no gaps in the thread locking adhesive once applied to the component.
Automatic Transmission Flex Plate Bolt (2) - Install NEW and hand tighten [8x]
Courtesy of GENERAL MOTORS COMPANY

CAUTION:
This vehicle is equipped with torque-to-yield or single use fasteners. Install a NEW torque-to-yield or single use fastener when installing this component. Failure to replace the torque-to-yield or single use fastener could cause damage to the vehicle or component.

NOTE:
Have an additional technician hold the EN-956-1 Extension in place while torquing takes place.

Automatic Transmission Flex Plate Bolt (1) - Tighten in sequence [8x] - Fastener Specifications
Courtesy of GENERAL MOTORS COMPANY

Remove the EN-49979 Crankshaft Holder (1) with EN-956-1 Extension (3).
Transmission - Install - Automatic Transmission Removal and Installation ((LM2 & RWL & F47) , or Automatic Transmission Removal and Installation (LM2 & RWL - F47)
Engine Oil and Oil Filter - Install NEW - Engine Oil and Oil Filter Replacement