Lucerne V6-3.9L (2009)
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Damaged seals
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Damaged switch membranes
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Debris on the switch membranes
Installation Procedure
1. Carefully install the fluid pressure manual valve position switch. Handle the switch carefully, the fluid pressure manual valve position switch is
very delicate.
Caution: Refer to Fastener Caution (See: Service Precautions/Vehicle Damage Warnings/Fastener Caution).
2. Install the control valve body bolts (375 and 381) that mount the fluid pressure manual valve position switch to the control valve body (300).
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Tighten the control valve body bolt (375) to 12 Nm (106 lb in).
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Tighten the control valve body bolt (381) to 8 Nm (70 lb in).
3. Connect the transaxle wiring harness.
4. Install the case side cover. Refer to Control Valve Body Cover Replacement (See: Transmission and Drivetrain/Automatic
Transmission/Transaxle/Valve Body/Service and Repair/4T65-E - Automatic Transmission/Control Valve Body Cover Replacement).
Note: It is recommended that transmission adaptive pressure (TAP) information be reset.
Resetting the TAP values using a scan tool will erase all learned values in all cells. As a result, The ECM, PCM or TCM will need to relearn TAP
values. Transmission performance may be affected as new TAP values are learned.
5. Reset the TAP values. Refer to Transmission Adaptive Functions (See: Transmission and Drivetrain/Automatic
Transmission/Transaxle/Description and Operation/4T65-E - Automatic Transmission/Transmission Adaptive Functions).