Installation Procedure

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Steering Gear Drive Coupling (1) - Install NEW
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CAUTION:
Only use General Motors approved room temperature vulcanizing sealant (RTV). Failure to use GM approved products may result in insufficient motor to gear sealing, allowing water intrusion which may lead to rack and pinion steering gear failure and require replacement of the rack and pinion steering gear.

CAUTION:
Do not over apply room temperature vulcanizing sealant (RTV). Excessive RTV increases the chance of the RTV to come into contact with the coupler or gear causing rack and pinion steering gear failure, requiring replacement of the rack and pinion steering gear.

NOTE:
Only perform the procedure with the RTV and steering gear assembly at room temperature (between 18-40°C). RTV air exposure time is 8 minutes and the following steps must be done within that time frame. Failure to assemble within the 8 minute time frame will cause improper sealing of the power steering assist motor to the electric dual pinion rack and pinion steering gear sealing surface causing the need to repeat cleaning the electric dual pinion rack and pinion steering gear/power steering assist motor sealing surfaces and installation steps 2 - 6.

Apply a 3 mm (0.11 inch) continuous bead of RTV to the motor assembly (1) and follow the outline of the motor valley starting at the area indicated (2). Do NOT apply into the motor valley. RTV should be applied only to the outer edge of the motor valley outline. Adhesives, Fluids, Lubricants, and Sealers
Do not allow RTV to skim over. Power steering assist motor must be installed within 8 minutes of RTV being applied.
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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:
- The steering gear drive coupling and assist motor armature should be aligned with the gear inside of the steering gear housing to aid in installation, otherwise interference MAY occur.
- Some components not shown for graphic clarity.
Position the power steering assist motor (2) with the steering gear housing and start the 2 NEW power steering assist motor bolts (1).
With the 2 NEW power steering assist motor bolts (1) started, completely install the power steering assist motor (2) to the steering gear housing.

CAUTION:

Refer to Fastener Caution .

Power Steering Assist Motor Bolt (1) - Tighten [2x] 21 N.m (15 lb ft)
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NOTE:
Some components not shown for graphic clarity.

Connect the electrical connector (1) to the power steering assist motor.
Verify connector (1) is fully seated by lightly pulling on the connector.
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NOTE:
Some components not shown for graphic clarity.

Connect the electrical connector. (1)
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NOTE:
Some components not shown for graphic clarity.

Connect the electrical connector. (1)
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Steering Gear Heat Shield (2) - Install
Steering Gear Heat Shield Bolt (1) - Install and tighten [3x] 9 N.m (80 lb ft)
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Drivetrain and Front Suspension Cradle (1) - Install - Drivetrain and Front Suspension Cradle Removal and Installation
Lower the vehicle.
Connect the battery negative cable. Battery Negative Cable Disconnection and Connection
Transfer the key cycle count from the OLD steering gear control module to the NEW steering gear control module. Control Module References