Rainier AWD L6-4.2L VIN S (2005)
Air Injection Pump: Service and Repair
SECONDARY AIR INJECTION (AIR) PUMP REPLACEMENT
REMOVAL PROCEDURE
1. Raise the vehicle. Refer to Vehicle Lifting.
2. Disconnect both the air inlet and air outlet pipes from the secondary air injection (AIR) reaction pump.
3. Remove the electrical relay from the AIR pump bracket.
4. Disconnect the electrical connector from the AIR pump.
5. Remove the 3 bolts securing the AIR pump bracket to the vehicle frame.
6. Remove the AIR pump from the vehicle.
INSTALLATION PROCEDURE
1. Install the AIR pump to the vehicle.
2. Install the 3 bolts securing the AIR pump bracket to the vehicle frame.
NOTE: Refer to Fastener Notice in Service Precautions.
Tighten the bolts to 20 N.m (15 lb ft).
3. Connect the electrical connector to the AIR pump.
4. Install the electrical relay to the AIR pump bracket.
5. Connect both the air inlet and air outlet pipe to the AIR pump.
IMPORTANT: Ensure the air inlet and air outlet pipes are clean and clear of any debris before connecting to the AIR pump.
