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Control Valve Body Assembly Installation

    Fig 1: Control Valve Body Spacer Plate, Locating Pins & Transmission Magnet Chip Collector
    GM1347146Courtesy of GENERAL MOTORS CORP.
  1. If necessary, clean and install the transmission magnet chip collector (137) in the torque converter housing (150).
  2. Install the spacer plate locating pins (243).
  3. Install the control valve body spacer plate (244).
    4. Fig 2: Fluid Pump Driven Gear, Drive Gear & Gear Pin
    GM1206182Courtesy of GENERAL MOTORS CORP.
  4. Install the automatic transmission fluid pump drive gear (234) into the transmission torque converter housing.
  5. Install the automatic transmission fluid pump driven gear (232) into the transmission torque converter housing with its grooved and chamfered side facing down as shown.
  6. Install the automatic transmission fluid pump driven gear pin (233) into the transmission torque converter housing.
    7. Fig 3: Main Control Valve Body Assembly & Bolt/Screws
    GM1347168Courtesy of GENERAL MOTORS CORP.
  7. Install the main control valve body assembly (250) to the torque converter housing assembly using the following flanged bolt/screws:
    • 2 M6 x 1.0 x 40 mm (221)
    • 2 M6 x 1.0 x 30 mm (222)
    • 3 M8 x 1.0 x 32 mm (223)
    • 3 M6 x 1.0 x 20 mm (224)
    8. Fig 4: Tightening Control Valve Body Assembly Bolts In Sequence
    GM1359033Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  8. Tighten the bolts in the sequence shown.

    Tighten: 

    • Tighten all M6 bolts to 12 N.m (106 lb. in.)
    • Tighten all M8 bolts to 18 N.m (13 lb. ft.)

    9. Fig 5: Inspecting Fluid Pump Drive Gear Pin & Fluid Pump Driven Gear Pin For Smooth Rotation
    GM1206190Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Properly align the fluid pump driven gear pin in order to prevent a seized fluid pump.
  9. Inspect the automatic transmission fluid pump drive gear pin (234) and the automatic transmission fluid pump driven gear pin (233) for smooth rotation.
  10. If the gears do not rotate smoothly perform the following:
    • Loosen all of the control valve body bolts
    • Align the fluid pump driven gear pin again
    • Torque the bolts to specifications again
    • Verify the gears rotate smoothly
    11. Fig 6: Torque Converter Check Valve, Return Spring, Transmission Fluid Cooler Check Valve & Oil Cooler Check Return Spring
    GM1347177Courtesy of GENERAL MOTORS CORP.
  11. Install the torque converter check valve 35.1 mm return spring (226) into the control valve body (250).
  12. Install the torque converter check valve (225) into the control valve body (250).
  13. Install the transmission fluid cooler check valve (228) into the control valve body (250).
  14. Install the oil cooler check ball 14.5 mm return spring (227) into the control valve body (250).
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