GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Isuzu 🢒 2005 🢒 Ascender - 2WD 🢒 Transmission/Transaxle 🢒 Automatic Transaxle - 4T80-E 🢒 Oil Pump, Upper Control Valve Assembly Removal

    Object Number: 11858 Size: SH
  1. Using a small screwdriver, disconnect the following parts:
    2. • The electrical connector from the automatic transmission fluid temperature sensor (350)
    • The torque converter clutch solenoid valve (336)
    • The pressure control solenoid valve (339)

    Object Number: 11859 Size: SH
  2. Remove the 19 8-mm bolts (229, 231, 232, 233, 234, 235, 331) from the pump housings.

    3. Object Number: 11860 Size: SH
  3. Remove the scavenge, the primary and the secondary pump assemblies as one unit (200-225).
  4. Remove the pump gasket (228).

    5. Object Number: 11861 Size: SH
  5. Remove the seventeen 8-mm bolts from the upper control valve body assembly.
  6. Remove the following parts:
    7. • The upper control valve body assembly (300)
    • The spacer plate (327)
    • The gaskets (326, 328)