Chevrolet Silverado / GMC Sierra. Manual — part 1047

Fig. 84: 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 - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis

Silverado, Sierra & Silverado

Fig. 85: 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 - 4L60-E/4L65-E/4L70-E - 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) .

2-4 SERVO

Tools Required

J 29714-A Servo Cover Depressor. See Special Tools.

Removal Procedure

Fig. 86: View Of Transmission Heat Shield Bolts & Shield
Courtesy of GENERAL MOTORS CORP.

1. Remove the catalytic converter pipe. Refer to Catalytic Converter Replacement (4.3L)

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis

Silverado, Sierra & Silverado

or Catalytic Converter Replacement (4.8L, 5.3L, 6.0L, 6.2L) or Catalytic Converter
Replacement (6.6L) .

2. Remove the heat shield bolts.

3. Remove the heat shield.

4. Support the transmission.

5. Remove the transmission crossmember. Refer to Transmission Support Crossmember

Replacement (2WD 2500 HD/3500) or Transmission Support Crossmember
Replacement (2WD 1500/2500) or Transmission Support Crossmember Replacement
(4WD 1500/2500) or Transmission Support Crossmember Replacement (4WD 2500
HD/3500) .

6. Lower the transmission with a suitable jack.

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis

Silverado, Sierra & Silverado