OEM Chevrolet Tahoe Secondary Air Injection Pump

Chevrolet Tahoe 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 Chevrolet Tahoe?

  A: Service of the air injection pump starts with bracing removal from the fender and cowl and disconnection of electrical connectors from the air pump , air solenoid valve , and Relay . Start the procedure by disassembling the hose clamp on the air shut-off valve hose then disconnecting the hose from the valve unit. The vacuum line needs to be taken out of the air solenoid valve before you can remove the air pump assembly hold down fastener and block. The procedure begins with post-release of the air pump rubber mounting posts from the pump then follows removal of hoses from the air pump before taking out the pump itself. Install the air pump so it rests on the rubber mounting posts then link the hoses to their respective points on the pump. Install the air pump assembly into the vehicle followed by fixing the air pump assembly hold down block together with fastener and applying 25.0 n.m (18 lb ft) torque to the fastener. Fasten the hose to the air shut-off valve by using a hose clamp. After connecting the electrical pins to the air pump and air solenoid valve and air pump Relay you can install the vacuum hose to the air solenoid valve. Reinstall the brace to the fender and cowl before performing a system test of the air system.