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Content .. 1881 1882 1883 1884 ..
Fig. 25: Connecting Air Out Hose 5. Connect the air out hose (2) of the EN-46999 (5) to the EN-46999-1 (1). See Special Tools. Verify the air supply switch (4) is in the off position. 6. Connect the air in hose (6) of the EN-46999 (5) to a shop air source. See Special Tools. 7. Connect the 12-volt power supply connectors (7) of the EN-46999 (5) to a 12-volt power supply. See Special Tools. Verify the Power light (8) on the tool is illuminated. If the light 8. Connect the EN-46999-5 power cable (3) to the electrical connector of the manifold. See Special Tools.
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 26: Bleed Holes & Outlet Ports 9. Turn the air supply switch of the EN-46999 to the ON position. See Special Tools. With the air supply connected to the manifold assembly and the solenoid/valves in the closed
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 27: Testing Solenoid/Valves 10. Position the manifold assembly onto a bench at a 45 degree angle in order to test solenoid/valves 1 and 4. 11. Depress button number 1 on the tool to activate solenoid/valve 1. With button 1 depressed, the solenoid/valve (1) should open, allowing an increased amount of air to exit the outlet 12. Depress button number 4 on the tool to activate solenoid/valve 4. With button 4 depressed, the solenoid/valve (4) should open, allowing an increased amount of air to exit the outlet IMPORTANT: The manifold must be tested in the proper position to ensure the solenoid/valves operate as designed.
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 28: View Of Solenoid/Valves 13. Reposition the manifold assembly onto a bench at a 45 degree angle in order to test solenoid/valves 2 and 3. 14. Depress button number 2 on the tool to activate solenoid/valve 2. With button 2 depressed, the solenoid/valve (2) should open, allowing an increased amount of air to exit the outlet 15. Depress button number 3 on the tool to activate solenoid/valve 3. With button 3 depressed, the solenoid/valve (3) should open, allowing an increased amount of air to exit the outlet 16. When the test is completed, turn the air source switch on the EN-46999 to the off position and disconnect the tool from the 12-volt power supply, shop air source and manifold 17. If after testing, it has been determined that one or more of the solenoid/valves is not functioning properly, replace the manifold as an assembly. 18. If after testing, it has been determined that the solenoid/valves are functioning properly, replace the valve lifters as required. Both intake and exhaust lifters should be replaced in
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Content .. 1881 1882 1883 1884 ..
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