Chevrolet Silverado / GMC Sierra. Service manual — part 422

Courtesy of GENERAL MOTORS CORP.

8. If equipped with an automatic transmission, remove the bolt retaining the transmission oil

cooler line bracket.

9. Move the transmission oil cooler lines aside.

10. In order to raise the engine to inspect the right engine mount, use a suitable jack on the

ground wire bolt bosses on the right side of the engine

11. Perform the following in order to inspect the engine mounts:

1. Raise the engine to remove weight from the engine mount.

2. Place a slight tension on the rubber cushion.

3. Observe the engine mount for the following while raising the engine:

Heat check cracks covering the hard rubber surface

The rubber cushion is separated from the metal plate of the engine mount.

There is a split through the rubber cushion.

12. Replace the engine mount if any of the above conditions exist.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 20: Identifying Engine Shield And Retaining Bolts
Courtesy of GENERAL MOTORS CORP.

13. Install the engine protection shield and bolts.

Tighten: Tighten the engine protection shield bolts to 20 N.m (15 lb ft).

NOTE:

Refer to Fastener Notice .

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 21: Identifying Oil Pan Skid Plate
Courtesy of GENERAL MOTORS CORP.

14. Install the oil pan skid plate and bolts.

Tighten: Tighten the oil pan skid plate bolts to 20 N.m (15 lb ft).

15. Lower the vehicle.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

ENGINE MOUNT REPLACEMENT - LEFT SIDE

Removal Procedure

1. If RWD vehicle, raise the vehicle to a height to work through the front wheelhouse opening.

Refer to Lifting and Jacking the Vehicle .

2. If 4-wheel drive (4WD) vehicle, raise the vehicle in order to remove the front tires and

wheels and support with jackstands.

3. Remove the wheelhouse inner panel. Refer to Front Wheelhouse Liner Replacement -

Left Side (Chevrolet) or Front Wheelhouse Liner Replacement - Left Side (GMC) .

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado