Workshop Repair and Service Manuals GMC SIERRA
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Brake Pedal Assembly Replacement Pedal Position

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Removal ProcedureRemove the steering column from the vehicle. Refer toSteering Column Replacement.Disconnect the electrical connectors from the following components:Adjustable pedal motor assemblyAccelerator pedal position sensorMemory sensor connector, if equippedBrake pedal position sensorRemove the left side floor air outlet duct. Refer toFloor Air Outlet Duct Replacement - Left Side.

Brake Pedal Assembly Replacement Pedal Position

Remove the brake pedal position sensor bolt-(1).

Brake Pedal Assembly Replacement Pedal Position

Remove the brake pedal position sensor-(1).

Brake Pedal Assembly Replacement Pedal Position

Remove the brake booster pushrod retainer bolt-(1).

Brake Pedal Assembly Replacement Pedal Position

Remove the brake booster pushrod retainer-(1).Disconnect the brake booster pushrod from the brake pedal pivot.

Brake Pedal Assembly Replacement Pedal Position

Remove the adjustable pedal bracket nuts-(1).

Brake Pedal Assembly Replacement Pedal Position

Remove the adjustable pedal bracket bolt-(1).Position the brake booster forward until the studs are past the adjustable pedal bracketholes and support with heavy mechanics wire or equivalent.Disconnect and position aside any wiring harnesses as necessary.Remove the adjustable pedal assembly from the vehicle.Remove the accelerator pedal position sensor assembly. Refer toAccelerator Pedal Position Sensor Replacement.Installation ProcedureInstall the accelerator pedal position sensor assembly. Refer toAccelerator Pedal Position Sensor Replacement.With the aid of an assistant, position the brake booster to the vehicle.

Brake Pedal Assembly Replacement Pedal Position

Install the adjustable pedal assembly to the vehicle.

Note:Do not tighten the adjustable pedal bracket bolt until the adjustable pedal bracketnuts are installed.

Hand install the adjustable pedal bracket bolt-(1).

Brake Pedal Assembly Replacement Pedal Position

Caution:Refer toFastener Caution.

Install the adjustable pedal bracket nuts-(1)-and tighten to-36-Y (27-lb-ft).Tighten the adjustable pedal bracket bolt to-36-Y (27-lb-ft).Apply a thin coat of high temperature grease GM-P/N-12345994 (Canadian-P/N-10953501)to the pushrod pin on the brake pedal.Connect the brake booster pushrod to the brake pedal pivot.

Brake Pedal Assembly Replacement Pedal Position

Install the brake booster pushrod retainer-(1).Rotate the retainer 360-degrees to ensure it is seated properly before tighteningthe retainer bolt.

Brake Pedal Assembly Replacement Pedal Position

Install the brake booster pushrod retainer bolt-(1) and tighten to-10-Y (89-lb-in).Install the left side floor air outlet duct. Refer toFloor Air Outlet Duct Replacement - Left Side.

Brake Pedal Assembly Replacement Pedal Position

Install the brake pedal position sensor-(1).

Brake Pedal Assembly Replacement Pedal Position

Install the brake pedal position sensor bolt-(1).Connect the electrical connectors to the following components:Adjustable pedal motor assemblyAccelerator pedal position sensorMemory sensor connector, if equippedBrake pedal position sensorReposition and connect any wiring harnesses as necessary.Install the steering column to the vehicle. Refer toSteering Column Replacement.Verify the correct operation of the adjustable pedals.Calibrate the brake pedal position sensor. Refer toBrake Pedal Position Sensor Calibration.

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