Sierra 1500 2WD V8-5.3L VIN Z Flex Fuel (2006)
8. Remove spring (2) and control main valve (1).
9. Remove solenoid screen (1).
Control Valve Body Cleaning and Inspection
Control Valve Body Cleaning and Inspection
Clean and Inspect
Notice: Refer to Transmission Control Valve Body Overhaul Notice.
1. Clean all removed parts with volatile mineral spirits or other similar cleaning agent.
2. Clean fluid passages by working a piece of soft wire through the passage and flushing with mineral spirits. Dry the passages with compressed air.
3. Inspect valves for wear, nicks, or scratches. Remove minor imperfections with a soft stone or crocus cloth. Replace any damaged valves.
4. Inspect springs for signs of overheating, permanent set, or wear. Replace suspect springs.
5. Inspect mating surfaces for nicks, burrs, scratches, or foreign matter. Remove any defects with crocus cloth or a soft stone. Replace damaged parts.
