Sierra 2500 4WD V8-6.6L DSL Turbo (2007)
Notice: Refer to Engine Lifting Notice.
6. If the vehicle is 4-wheel drive (4WD), you will not be able to access the lifting points on the engine. In order to raise the engine, attach a chain to
the front of the engine. Then follow the inspection steps.
7. If the vehicle is rear-wheel drive (RWD), in order to raise the engine to inspect the left engine mount, use a suitable jack on the ground wire bolt
bosses on the left side of the engine
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.
Notice: Refer to Fastener Notice.
13. Install the engine protection shield and bolts.
Tighten the engine protection shield bolts to 20 N.m (15 lb ft).