104. Control Valve Body Inspection

Control Valve Body Inspection





1. Inspect the control valve body (301) for the following conditions:
- Worn or damaged oil pump drive shaft bearing journal (not serviceable separately from the control valve body)
- Damaged or porous casting
- Damaged sealing surfaces
- Debris in fluid passages





2. Use a small pick or screwdriver. Before disassembly, inspect the control valve body (301) components for the following conditions:
- Valves binding or sticking in their bores or bushings
- Broken, missing or damaged springs
- Missing or damaged retainers
- Damaged solenoid valves
- Debris in valve line-ups or solenoid valves





3. During disassembly, inspect the control valve body for the following conditions:
- Worn or damaged valves, valve bores or bushings,
- Broken, missing or damaged springs
- Missing or damaged retainers
- Damaged solenoid valves
- Debris in valve line-ups or solenoid valves





4. Inspect the Transmission Fluid Pressure (TFP) manual valve position switch assembly (395) for the following conditions: Damaged electrical connector terminals Damaged seals Damaged switch membranes Debris on the switch membranes