Chevrolet Silverado / GMC Sierra. Service manual — part 1623

Removal Procedure

The optional oil cooler is either an integral part of the radiator or a separate unit placed in front
of the radiator. The cooler lines and hoses are serviceable.

Fig. 40: Locating Quick Connect Fitting
Courtesy of GENERAL MOTORS CORP.

1. Disconnect the engine oil cooler quick connect fittings. Refer to Engine Oil Cooler

Pipe/Hose Quick Connect Fitting.

2. If equipped with regular production option (RPO) L76 (6.0L) engine, perform the

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Cooling - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

following.

1. Open the oil cooler hose clip located on the lower fan shroud.

2. Remove the oil cooler hoses from the clip.

3. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .

Fig. 41: View Of Oil Cooler Hoses & Clips
Courtesy of GENERAL MOTORS CORP.

4. If equipped with RPO LY6 (6.0L) engine, remove the oil cooler hoses from the clip.

5. Place a jack or utility stands at the rear of the vehicle.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Cooling - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

6. If equipped, remove the engine protection shield. Refer to Engine Shield Replacement .

Fig. 42: Locating Differential Carrier Nuts
Courtesy of GENERAL MOTORS CORP.

7. For both 1500 and 2500 series, support the front differential carrier with a suitable

adjustable jack.

8. For 1500 series vehicles, remove the differential carrier right side nuts.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Cooling - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 43: View Of Differential Carrier Bolts
Courtesy of GENERAL MOTORS CORP.

9. Remove the differential carrier left side bolts.

10. Lower the differential carrier.

11. For 2500 series vehicles, remove the differential carrier right side nuts.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Cooling - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado