Removal Procedure
- With the tires in the straight forward position, remove the key from the
ignition.
- Disconnect the negative battery cable. Refer to
Battery Negative Cable Disconnection and Connection
in Engine Electrical.
- Remove the air cleaner assembly. Refer to
Air Cleaner Assembly Replacement
in Engine Controls - 3.5L
(L66).
- Secure the cooling module to the upper body
structure.
- Remove the battery and battery tray. Refer to
Battery Tray Replacement
in Engine Electrical.
- Disconnect the transmission shiftier cable.
- Disconnect the wiring harness from the underhood junction block. Refer
to
Underhood Electrical Center or Junction Block Replacement
in Wiring Systems.
- Evacuate the A/C system. Refer to
Refrigerant Recovery and Recharging
in Heating, Ventilation and Air Conditioning.
- Drain the cooling system. Refer to
Cooling System Draining and Filling
in Engine Cooling.
- Remove the powertrain control module (PCM). Refer to
Powertrain Control Module Replacement
in Engine Controls - 3.5L
(L66).
- Remove the A/C low pressure tube at the front lift bracket.
- Disconnect the generator positive cable.
- Disconnect the A/C high pressure switch harness.
- Remove the A/C tube from the A/C compressor. Refer to
Compressor Hose Assembly Replacement
in Heating, Ventilation, and Air
Conditioning.
- Disconnect the A/C line from the condenser to the compressor.
- Disconnect the coolant reservoir hose from the engine to reservoir.
- Disconnect the radiator inlet and outlet
hoses from the engine.
- Remove the inlet and outlet heater hoses (1, 2).
- Remove the starter positive cable.
- Relieve the fuel pressure. Refer to
Fuel Pressure Relief
in Engine Controls - 3.5L
(L66).
- Disconnect the fuel feed line.
- Disconnect the fuel EVAP line.
- Raise and support the vehicle. Refer to
Lifting and Jacking the Vehicle
in General Information.
- Remove the lower transaxle-to-engine bolts.
- Remove the PTU. Refer to
Transfer Case Replacement
in Transfer Case - MJ8.
- Remove the torque convertor inspection cover.
- Remove the torque convertor-to-flywheel bolts.
- Remove the front wheels. Refer to
Tire and Wheel Removal and Installation
in Tires and Wheels.
- Remove the left wheelhouse liner. Refer to
Front Wheelhouse Liner Replacement
in Body Front End.
- Disconnect the transmission cooler lines from the transmission and bracket.
Refer to
Oil Cooler Hose/Pipe Replacement
.
- Remove the left and right tie rod ends from the steering knuckles. Refer
to
Rack and Pinion Outer Tie Rod End Replacement
in
Power Steering System.
- Remove the left and right stabilizer bar links. Refer to
Stabilizer Shaft Link Replacement
in Front Suspension.
- Disconnect the left and right lower ball joints. Refer to
Lower Control Arm Ball Joint Replacement
in Front Suspension.
- Remove the left and right axle shaft nuts. Refer to
Front Wheel Drive Shaft Replacement
in Wheel Drive Shafts.
- Remove the propeller shaft. Refer to
Propeller Shaft Replacement
in Propeller Shaft.
Important: In order to prevent possible SIR system deployment,
do not attempt to rotate the steering shaft.
- Disconnect the intermediate shaft from the steering gear. Refer to
Intermediate Steering Shaft Replacement
in Steering Wheel
and Column.
- Remove the front exhaust pipe. Refer to
Exhaust Manifold Pipe Replacement
in Engine Exhaust.
- Remove the 3 front fender pushpins to allow the front fender to
flex.
- Use a paint pen or magic marker to mark the frame to the body position.
- Support the engine in the cradle with wood blocks.
- Disconnect the front engine mount from the body. Refer to
Transmission Rear Mount Replacement
in Engine
Mechanical - 3.5L (L66).
Important: During the powertrain removal, support the
vehicle body by placing a jack at the rear of the vehicle.
- Position the engine support table under the powertrain assembly.
- With the table positioned, fully raise the table to contact with the powertrain
assembly.
- Remove the cradle bolts.
- Slowly lower the table to the floor.
- Remove the starter.
- Remove the following components:
47.1. | Remove the transmission shift cable bracket. |
47.3. | Remove the transmission vent hose. |
- Remove the transmission mount from the transmission. Refer to
Transmission Rear Mount Bracket Replacement
.
- Remove the rear transmission mount bracket. Refer to
Transmission Rear Mount Bracket Replacement
.
- Separate the transmission from the engine.
- Remove the transfer case, if equipped. Refer to
Transfer Case Replacement
.
Installation Procedure
- Align the transmission to the engine.
Notice: Refer to Fastener Notice in the Preface section.
- Apply sealant Saturn P/N 21485277 (GM P/N 12345382)
or equivalent, to the two upper transmission-to-engine bolts only, and install the
transmission-to-engine mounting bolts.
Tighten
Tighten the bolts to 64 N·m (47 lb ft).
- Install the rear. Refer to
Engine Mount Replacement - Right Side
in Engine Mechanical - 3.5L (L66).
- Install the front engine mount to the engine. Refer to
Transmission Rear Mount Replacement
in Engine Mechanical - 3.5L
(L66).
- Install the following components:
5.1. | Install the transmission vent hose. |
5.3. | Install the transmission shift cable bracket and bolts. |
Tighten
Tighten the bolts to 10 N·m (89 lb in).
- Install the starter. Refer to
Starter Motor Replacement
in Engine Electrical.
- Install the powertrain assembly to the vehicle.
- Install the cradle bolts. Refer to
Frame Replacement
in Frame and Underbody.
- Remove the engine support table.
- Install the front engine mount bolts to the body. Refer to
Transmission Rear Mount Replacement
in Engine
Mechanical - 3.5L (L66).
- Remove the wood blocks from the cradle.
- Install the lower transaxle-to-engine bolts.
Tighten
Tighten the bolts to 64 N·m (47 lb ft).
- Install the PTU. Refer to
Transfer Case Replacement
in Transfer Case - MJ8.
- Install the torque convertor-to-flywheel bolts.
Tighten
Tighten the bolts to 12 N·m (9 lb ft).
- Install the torque convertor inspection cover.
Tighten
Tighten the bolts to 12 N·m (9 lb ft).
- Install the 3 front fender pushpins
- Install the front exhaust pipe. Refer to
Exhaust Manifold Pipe Replacement
in Engine Exhaust.
- Connect the intermediate shaft from the steering gear. Refer to
Intermediate Steering Shaft Replacement
in Steering Wheel
and Column.
- Install the propeller shaft. Refer to
Propeller Shaft Replacement
in Propeller Shaft.
- Install the left and right axle shaft nuts. Refer to
Front Wheel Drive Shaft Replacement
in Wheel Drive Shafts.
- Connect the left and right lower ball joints. Refer to
Lower Control Arm Ball Joint Replacement
in Front Suspension.
- Install the left and right stabilizer bar links. Refer to
Stabilizer Shaft Link Replacement
in Front Suspension.
- Install the left and right tie rod ends to the steering knuckles. Refer
to
Rack and Pinion Outer Tie Rod End Replacement
in
Power Steering System.
- Connect the transmission cooler lines to the transmission and bracket.
Refer to
Oil Cooler Hose/Pipe Replacement
.
- Install the left wheelhouse liner. Refer to
Front Wheelhouse Liner Replacement
in Body Front End.
- Install the front tires. Refer to
Tire and Wheel Removal and Installation
in Tires and Wheels.
- Lower the vehicle.
- Install the fuel EVAP line.
- Connect the fuel feed line. Refer to
Fuel Hose/Pipes Replacement - Chassis
in Engine Mechanical - 3.5L
(L66).
- Install the starter positive cable.
Tighten
Tighten the starter cable to 12 N·m
(106 lb in).
- Install the inlet and outlet heater hoses.
- Connect the inlet and outlet radiator hoses to the engine.
- Install the A/C tube to the A/C compressor. Refer to
Compressor Hose Assembly Replacement
in Heating, Ventilation, and Air
Conditioning.
- Connect the coolant reservoir hose from engine to reservoir.
- Connect the A/C line from the condenser to the compressor.
- Connect the A/C high pressure switch harness.
- Connect the generator positive cable and nut.
Tighten
Tighten the nut to 12 N·m (106 lb in).
- Install the A/C lower pressure tube at the front lift bracket. Refer to
Liquid Line Replacement
in Heating, Ventilation, and
Air Conditioning.
- Install the PCM. Refer to
Powertrain Control Module Replacement
in Engine Controls - 3.5L
(L66).
- Connect the radiator inlet and outlet hoses
to the engine.
- Fill the vehicle with coolant. Refer to
Cooling System Draining and Filling
in Engine Cooling.
- Connect the wiring harness to the underhood junction block. Refer to
Underhood Electrical Center or Junction Block Replacement
in
Wiring Systems.
- Connect the transmission shiftier cable.
- Remove the cooling module support.
- Install the battery tray and battery. Refer to
Battery Tray Replacement
in Engine Electrical.
- Install the air cleaner assembly. Refer to
Air Cleaner Assembly Replacement
in Engine Controls - 3.5L
(L66).
- Install the air outlet duct assembly. Refer to
Air Cleaner Resonator Outlet Duct Replacement
in Engine Mechanical - 3.5L
(L66).
- Connect the negative battery cable. Refer to
Battery Negative Cable Disconnection and Connection
in Engine Electrical.