GM Service Manual Online
For 1990-2009 cars only

    Object Number: 801950  Size: SH
  1. Inspect the front control valve body (340) for the following conditions:
  2. • Damaged or porous casting
    • Damaged sealing surfaces
    • Debris in fluid passages
  3. Use a suitable tool, before disassembly, to inspect the front control valve body (340) components for the following conditions:
  4. • 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
  5. During disassembly, inspect the front control valve body for the following conditions:
  6. • 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 valve