Removal Procedure

Fig 1: Removing/Installing Power Steering Pump Pulley & Identifying Knock Sensor No. 2 Location

Courtesy of GENERAL MOTORS CORP.

Turn the steering wheel all the way to the right.
Turn the ignition OFF.
Disconnect the knock sensor 2 harness connector.
Following the steps below:
1. Remove the knock sensor 2 pigtail from the camshaft position sensor clip.
2. Pull the sensor pigtail wire away from the 1 attachment clip located about 6 inches down the wire from the camshaft position sensor clip.
3. Tie a 4-foot long strip to one end of the knock sensor 2 connector and the other end to a fixed component near the camshaft position sensor.
Slightly loosen the power steering pump pulley bolts. Do not back the bolts out.

Fig 2: Using 15 mm Wrench To Rotate Tensioner Pulley Clockwise

Courtesy of GENERAL MOTORS CORP.

Remove the accessory drive belt.

Fig 3: Removing/Installing Power Steering Pump Pulley & Identifying Knock Sensor No. 2 Location

Courtesy of GENERAL MOTORS CORP.

Remove the power steering pump pulley bolts and the power steering pump pulley.

CAUTION: Ensure that the vehicle is properly supported and squarely positioned. To help avoid personal injury when a vehicle is on a hoist, provide additional support for the vehicle on the opposite end from which the components are being removed.

Raise the vehicle.

Fig 4: Removing/Installing Knock Sensor No. 2

Courtesy of GENERAL MOTORS CORP.

Remove the knock sensor 2 attachment bolts and guide the knock sensor with a string out from the bottom. Remove the string from the end of the knock sensor, but leave the string hanging.