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Chevrolet Silverado / GMC Sierra. Manual - part 1078
Fig. 201: View Of VSS, Bolt & O-Ring Seal
Courtesy of GENERAL MOTORS CORP.
3. Remove the VSS bolt (2).
4. Remove the VSS (1).
5. Remove the O-ring seal (3).
Installation Procedure
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis
Silverado, Sierra & Silverado
Fig. 202: View Of VSS, Bolt & O-Ring Seal
Courtesy of GENERAL MOTORS CORP.
1. Install the O-ring seal (3) onto the VSS (1).
2. Coat the O-ring seal (3) with a thin film of transmission fluid.
3. Install the VSS (1).
4. Install the VSS bolt (2).
Tighten: Tighten the bolt to 11 N.m (97 lb in).
NOTE:
Refer to Fastener Notice .
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis
Silverado, Sierra & Silverado
Fig. 203: View Of Transmission Harness 20-Way Connector & VSS Electrical
Connector
Courtesy of GENERAL MOTORS CORP.
5. Connect the VSS electrical connector (2).
6. Lower the vehicle.
7. Refill the fluid as required.
TRANSMISSION MOUNT INSPECTION
NOTE:
In order to avoid oil pan damage and possible engine failure, insert
a block of wood that spans the width of the oil pan bottom between
the oil pan and the jack support.
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis
Silverado, Sierra & Silverado
1. Raise the transmission/transaxle in order to remove the weight from the
transmission/transaxle mount and create slight tension in the rubber.
2. Observe the transmission/transaxle mount while raising the transmission/transaxle. Replace
the transmission/transaxle mount if the transmission/transaxle mount exhibits any of the
following conditions:
The hard rubber surface is covered with heat check cracks.
The rubber is separated from the metal plate of the transmission/transaxle mount.
The rubber is split through the center of the transmission/transaxle mount.
3. If there is movement between the metal plate of the transmission/transaxle mount and its
attaching points, lower the transmission/transaxle on the transmission/transaxle mount.
Tighten the bolts or nuts attaching the transmission/transaxle mount to the frame or
transmission/transaxle mount bracket.
TRANSMISSION MOUNT REPLACEMENT (2WD)
IMPORTANT: Black paint on the rubber will crack with time, this does
no constitute a failure.
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis
Silverado, Sierra & Silverado
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