Special Tools
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- EN-46999: Active Fuel Management Tester
- EN-46999-1: Active Fuel Management Tester Air Adapter
- EN-46999-5: Active Fuel Management Tester Harness - Small Block V8
For equivalent regional tools, refer to Special Tools
NOTE:
- Cylinder Deactivation (Active Fuel Management) Valve Lifter Oil Manifold Diagnosis and Testing is applicable for RPO LH6/LMG/LY5/LC9/L76.
- A minimum shop air source of 206 kPa (30 psi) is required for manifold testing.
- A water bleed is located on the side of the EN-46999: tester. Occasionally, depress the valve in order to remove excess water from the tool.
The manifold bench test provides a maximum 206 kPa (30 psi) of filtered shop air to the manifold and will test each solenoid/valve for the following conditions: