OEM GMC Yukon XL 1500 Secondary Air Injection Pump

GMC Yukon XL 1500 Secondary Air Injection Pump Parts Questions & Experts Answers

• A.I.R. Pump
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  Q: How to service the Secondary Air Injection Pump on GMC Yukon XL 1500?

  A: Service of the air injection pump requires initial removal of the fender and cowl brace followed by disconnecting connectors of the air pump along with the air solenoid valve and Relay. Detach the hose from the air shut-off valve and remove the hose clamp from its respective position on the air shut-off valve hose. Start by disconnecting the vacuum line from the air solenoid valve then proceed to remove the hold down fastener of the air pump assembly along with its block before you can extract the air pump assembly. You must terminate the rubber posts joining the air pump together followed by removing all the air hoses (3/4) from the pump before taking out the air pump completely. Place the air pump on top of rubber mounting posts and attach hoses to it before you proceed (3,14). The installation process includes inserting the air pump assembly into the vehicle after which you must attach the air pump assembly hold down block with its fastener. Make sure to fasten the hold down fastener to 25.0 n.m (18 lb ft). Screw the hose to the air shut-off valve through the hose clamp. Reinstall the electrical cables to the air pump and air solenoid valve and air pump Relay and attach the vacuum line to the air solenoid valve. The testing of your air system should take place after you install the fender brace and check for correct air functionality.