Chevrolet Silverado / GMC Sierra. Manual - part 21
Fig. 27: Engine Mount Bracket & Bolts
Courtesy of GENERAL MOTORS CORP.
1. Install the engine mount bracket.
2. Perform the following procedure prior to installing the engine mount bracket bolts.
1. Remove all traces of the original adhesive patch.
2. Clean the threads of the bolt with denatured alcohol or equivalent and allow to dry.
3. Apply threadlocker GM P/N 12345382 (Canadian P/N 10953489) or equivalent to the
bolts.
3. Install the engine mount bracket bolts.
Tighten: Tighten the engine mount bracket bolts to 75 N.m (55 lb ft).
NOTE:
Refer to Fastener Notice .
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
Fig. 28: Engine Mount Side Bracket & Bolts
Courtesy of GENERAL MOTORS CORP.
4. Position the engine mount side bracket to the engine, if removed and equipped. (right side
shown, left side similar).
5. Install the engine mount side bracket bolts.
Tighten: Tighten the engine mount side bracket bolts to 50 N.m (37 lb ft).
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
Fig. 29: Engine Mount Bolts
Courtesy of GENERAL MOTORS CORP.
6. Install the engine mount. (right side shown, left side similar).
7. Install the engine mount bolts.
Tighten: Tighten the engine mount bolts to 50 N.m (37 lb ft).
8. Lower the engine.
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
Fig. 30: Identifying Oil Pan Skid Plate
Courtesy of GENERAL MOTORS CORP.
9. Install the oil pan skid plate and bolts.
Tighten: Tighten the oil pan skid plate bolts to 20 N.m (15 lb ft).
10. Lower the vehicle.
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado