For 1990-2009 cars

### Removal Procedure

1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
2. Disconnect the AIR pump electrical connector.
3. Remove the hose clamp from the AIR pump supply hose.
4. Disconnect the air hose from the AIR pump.
5. Mark the location of the air pump in the bracket prior to removal.
6. Remove the fastening nuts.
7. Remove the AIR pump (1) assembly from the vehicle.

### Disassembly Procedure

1. Remove the wiring harness plug from the assembly bracket (6).
2. Remove the hose clamp.
3. Disconnect the air intake hose.
4. Remove the AIR pump bracket screws.
5. Remove the AIR pump (2) from the secondary AIR pump dampening ring (4).

### Assembly Procedure

1. Align the secondary air pump in the original position.
2. Install the secondary air pump to the secondary air pump dampening ring.
3. Install AIR pump bracket screws.

Tighten
Tighten the screws to 10 N·m (89 lb in).

4. Connect the air intake hose.
5. Install the hose clamps.
6. Connect the wiring harness plug to the assembly bracket.

### Installation Procedure

1. Install the AIR pump (1) assembly to the vehicle.
2. Install the AIR pump bracket nuts to the frame.

Tighten
Tighten the nuts to 12 N·m (106 lb in).

3. Connect the air hose to the AIR pump.
4. Install the hose clamp.
5. Connect the AIR pump electrical connector.
6. Lower the vehicle.