GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2002 🢒 GMC MD Steel Tilt (W Model) 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L80-E 🢒 Control Valve Body Cleaning and Inspection

    Object Number: 40623 Size: SH

    Notice: Do not reuse cleaning solvents. Previously used solvents may deposit sediment which may damage the component.

  1. Clean the control valve body (301) in clean solvent.
  2. Dry the control valve body (301) using compressed air.
  3. Inspect the control valve body casting for the following conditions:
    4. • Porosity
    • Cracks
    • Interconnected passages
    • Damaged machined surfaces

    Object Number: 40623 Size: SH

    Notice: Do not reuse cleaning solvents. Previously used solvents may deposit sediment which may damage the component.

  1. Clean the control valve body (301) in clean solvent.
  2. Dry the control valve body (301) using compressed air.
  3. Inspect the control valve body casting for the following conditions:
    4. • Porosity
    • Cracks
    • Interconnected passages
    • Damaged machined surfaces