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Home >> Chevrolet >> 2009 >> Impala V6-3.5L >> Repair and Diagnosis >> Transmission and Drivetrain >> Automatic Transmission/Transaxle >> Service and Repair >> Overhaul >> Forward Band Servo Assemble
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Forward Band Servo Assemble




Forward Band Servo Assemble




1. Inspect the forward band servo components for the following conditions:

* Damaged, worn or porous servo piston (16)
* Damaged servo piston oil seal ring (18)
* Damaged, worn or porous servo cover (13)
* Damaged servo cover seal (14)
* Broken or collapsed servo piston return spring (22)
* Broken or collapsed servo piston cushion inner spring (65)
* Broken or collapsed servo piston cushion outer spring (19)
* Damaged or worn servo piston apply pin (21)




2. Assemble the servo piston (16), the servo piston cushion outer spring (19), the servo piston cushion inner spring (65), the servo cushion spring retainer (20) and the servo piston apply pin (21).
3. Install the servo pin retaining ring (15) onto the servo piston apply pin (21).
4. Install the servo piston oil seal ring (18) onto the servo piston (16).
5. Assemble the 69.44 mm (2.73 in) servo piston return spring (22) onto the servo assembly.




6. Position the transmission so that the oil pan is facing up.
7. Install the servo cover seal (14) onto the servo cover (13).
8. Assemble the servo assembly (15-22) into the servo cover (13). Pivot the servo assembly (15-22) into the servo cover (13) in order to prevent the piston oil seal ring from being damaged.
9. Install the servo and cover assembly (13-22) into the case.




10. Using a long screwdriver, pry against the work bench in order to compress the forward band servo assembly (13).
11. Hold the servo assembly compressed.

Caution: Refer to Fastener Caution (Fastener Caution).

12. Install the 3 forward band servo cover bolts (12) and tighten to 12 Nm (106 lb in).
13. Remove the long screwdriver.

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