K Tahoe 4WD V8-4.8L VIN V (2000)
Air Injection Hose/Tube: Service and Repair
AIR Check Valve/Pipe Replacement - Bank 2
REMOVAL PROCEDURE
CAUTION: Refer to AIR temperature caution in Cautions and Notices.
1. Remove the clamps and AIR hoses from the AIR system right pipe.
2. Remove the check valve from the AIR pipe.
3. Remove the right AIR pipe from the exhaust manifold.
4. Before replacing a check valve test the valve for proper operation.
4.1. Install a vacuum pump to the nipple side of the check valve, AIR pump side.
4.2. Pump the vacuum pump to 10 inches Hg and observe the gauge.
4.3. Replace the check valve it the vacuum bleeds down to zero within 5 seconds.
INSTALLATION PROCEDURE
NOTE: Refer to Fastener Notice in Cautions and Notices
