GMC Workshop Manuals
Savana 3500 V8-4.8L (2009)
Transmission and Drivetrain > Automatic Transmission/Transaxle > Band Apply Servo, A/T > Component Information > Service and Repair > 4L60-E/4L65-E/4L70-E - Automatic Transmission > Page 4756
1. Install the following parts:
Piston spring (1)
Servo piston (3)
O-ring seal (4)
Forward servo piston pin (5)
Caution: Refer to Fastener Caution (See: Service Precautions/Vehicle Damage Warnings/Fastener Caution).
2. Install the forward servo gasket, cover, and bolts. Tighten the bolts to 24 Nm (18 lb ft).
4. Lower the vehicle.
and Inspection/4L80-E/4L85-E - Automatic Transmission).
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
6. Reset the TAP values. Refer to Transmission Adaptive Functions (See: Description and Operation/4L80-E/4L85-E - Automatic
Transmission/Transmission Adaptive Functions).
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