Chevrolet Silverado / GMC Sierra. Manual - part 757
TRANSMISSION FLUID AUXILIARY COOLER REPLACEMENT
REMOVAL PROCEDURE
1. Apply the park brake.
2. Shift the transmission into neutral.
3. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
4. Disconnect the transmission range selector cable from the range selector cable lever
ball stud.
1
Transmission Range Selector Cable Lever Nut
Tighten: 25 N.m (18 lb ft)
NOTE:
Refer to Fastener Notice .
2
Transmission Range Selector Cable Lever
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
Fig. 51: View Of Auxiliary Oil Cooler, Bolts & Push Pins
Courtesy of GENERAL MOTORS CORP.
1. Remove the front grill assembly. Refer to Radiator Grille Replacement (Chevrolet) or
Radiator Grille Replacement (GMC) .
2. Place a drain pan under the vehicle.
3. Disconnect the transmission oil cooler lines from the auxiliary cooler. Refer to
Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and
Connection .
4. Remove the auxiliary oil cooler bolts (1) and push pins (2).
5. Remove the auxiliary oil cooler from the vehicle.
INSTALLATION PROCEDURE
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
Fig. 52: View Of Auxiliary Oil Cooler, Bolts & Push Pins
Courtesy of GENERAL MOTORS CORP.
1. Install the auxiliary oil cooler to the vehicle.
2. Install the bolts (1) and the push pins (2) that retain the auxiliary oil cooler to the radiator
brace.
Tighten: Tighten the bolts to 12 N.m (9 lb ft).
3. Connect the transmission oil cooler lines to the auxiliary cooler. Refer to Transmission
Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection .
NOTE:
Refer to Fastener Notice .
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
4. Install the front grill assembly. Refer to Radiator Grille Replacement (Chevrolet) or
Radiator Grille Replacement (GMC) .
TRANSMISSION FLUID COOLER HOSE/PIPE QUICK-CONNECT FITTING
DISCONNECTION AND CONNECTION
REMOVAL PROCEDURE
Fig. 53: Identifying Retaining Ring On Quick Connect Fitting
Courtesy of GENERAL MOTORS CORP.
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado