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Vauxhall Workshop Service and Repair Manuals

Automatic Transmission - AF40-6|Description and Operation > < Automatic Transmission Wiring Harness Replacement

Control Valve Body Replacement

Removal Procedure

1. Remove the control valve body cover. Refer to Control Valve Body Cover Replacement .

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2. Disconnect the electrical connectors of the solenoid valves. The illustration shows how to use a screwdriver (1) for disconnecting the different connectors (2).

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3. Disconnect 8 electrical connectors (arrows) of the solenoid valves.
4. Disconnect 2 electrical connectors of the speed sensors (3, 4).
5. Detach wiring harness from 2 retaining clamps (1, 2).

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6. Remove 2 wiring harness speed sensors from the control valve body.
  Detach 2 electrical connectors speed sensor (1) from retainer on the control valve body.

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7. Remove the temperature sensor bolt (1).
  Remove the retaining plate (2).
  Remove the temperature sensor (3).

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8. Move the wiring harness of the solenoid valves (1) and the wiring harness of the speed sensors (2) aside and secure the wiring harness with adhesive tape (arrows).

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9. Remove the cover bolts (1).
10. Remove the cover (2).
11. Remove and DISCARD the gasket (3).

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12. Loose the valve body.
13. Loose the control valve body bolts (arrows) in the sequence shown.
14. Remove and DISCARD the control valve body bolts.

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Note:  The ducts are filled with oil.
15. Remove the control valve body carefully.
  Unhook the connecting rod (1).

Installation Procedure


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1. Clean the sealing surface (1).
2. Clean 19 threads of the control valve body and the control valve body cover holes (arrows).

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3. Install the control valve body.
4. Hook in the connecting rod (1).
5. Install 6 NEW control valve body bolts, but do not tighten yet.

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6. Install a NEW gasket (3).
7. Install the cover (2).
8. Install 2 cover bolts (1), but do not tighten yet.

Caution: Refer to Fastener Caution .


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9. Tighten the 8 control valve body bolts (arrows) in the sequence shown to 10 N·m (88 lb in) .

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10. Install the temperature sensor (3).
11. Coat the temperature sensor O-ring with transmission fluid.
12. Install the retaining plate (2).
13. Install the temperature sensor bolt (1) and tighten to 10 N·m (88 lb in) .

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14. Remove the adhesive tape (arrows) and place the wiring harness of the solenoid valves (1) and the wiring harness of the speed sensors (2) into the correct position.

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15. Install 2 wiring harness speed sensors to the control valve body.
  Attach 2 electrical connectors speed sensor (1) to the retainer on the control valve body.

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16. Attach wiring harness to 2 retaining clamps (1, 2).
17. Connect 2 electrical connectors of the speed sensors (3, 4).
18. Connect 8 electrical connectors (arrows) of the solenoid valves.
19. Install control valve body cover. Refer to Control Valve Body Cover Replacement .
20. After repairs, refer to Control Module References for programming and set up information.
21. Carry out adaptation and resetting, using the scan tool. Refer to Transmission Adaptive Functions .

Automatic Transmission - AF40-6|Description and Operation > < Automatic Transmission Wiring Harness Replacement