GM 12594429
A.I.R. Pump

The first step to replace the Secondary Air Injection Pump involves taking off the air cleaner upper housing. From the under the hood position disconnect the secondary air injection (AIR) pump hose quick connect fitting that connects to the pump while taking out the hose. The vehicle needs to be raised at sufficient height. First disconnect the air feed tube quick connect fitting from the pump location. The engine wiring harness electrical connector needs to be detached from its connection to the air pump wiring harness electrical connector. Apply pressure to the air pump wiring harness electrical connector clip and move it to release the clip-connector from the bracket. Lower the car by removing the pump nuts than follow with lowering the vehicle. Unfasten the air pump feed tube if needed to extract the pump after which remove the equipment. The air pump should be mounted onto the bracket before raising and supporting the vehicle for installation. After mounting the air pump nuts onto their mounting positions, tighten them to 89 lb in (10 Nm). Install the air pump wiring harness electrical connector clip onto the bracket before uniting it with the engine wiring harness electrical connector. Fasten the quick connect fitting of the air feed tube to the pump. From under the hood position the pump hose quick connector to directly connect it with the pump. Replacement of the air cleaner upper housing completes the installation process.

The replacement of the Secondary Air Injection Pump requires air cleaner upper housing removal. Unplug the secondary air injection (AIR) pump from the pump by disconnecting its quick connect fitting for the hose at the hood location. Lift the vehicle before using a proper lifting support. Detach the quick connect fitting from the pump which controls the air feed tube. Using a helping colleague pull off the engine wiring harness electrical connector while it disconnects from the air pump wiring harness electrical connector. To disconnect the clip from the electrical connector of the air pump wiring harness squeeze both parts together before pushing them out from the bracket. Next lower the vehicle while unscrewing the air pump nuts. Unconnect the air pump feed tube while moving it where needed for removal before taking out the air pump. After installing the air pump on the bracket start by raising the vehicle for support. First fasten air pump nuts while keeping a torque of 10 nm (89 lb in). Connect first the air pump wiring harness electrical connector clip to the mounting bracket before joining the engine wiring harness electrical connector with the air pump wiring harness electrical connector. Attach the pump to the air feed tube quick connect fitment. Lower the vehicle and from under the hood position and connect the quick connect fitting of the air pump hose to the pump. Complete the installation by mounting the air cleaner upper housing.

Lower the vehicle.