C 2500 Suburban 2WD V8-454 7.4L VIN J SFI (1998)
Air Injection Pump: Service and Repair
REMOVAL PROCEDURE
NOTE: The Air Injection Reaction (AIR) pump is a positive displacement vane type which is permanently lubricated and requires no periodic
maintenance.
1. Remove the drive belt. Refer to Engine Cooling.
2. Disconnect the AIR pump electrical connector
Diagram
3. Disconnect the AIR air cleaner hose to pump.
Diagram
4. Disconnect the AIR output hose at the AIR pump.
Diagram
