Chevrolet Silverado / GMC Sierra. Service manual — part 2047

Fig. 63: Identifying Camshaft & Crankshaft Marks
Courtesy of GENERAL MOTORS CORP.

9. Inspect the sprockets for proper alignment. The mark on the camshaft sprocket (1) should be

located in the 6 o'clock position and the mark on the crankshaft sprocket (2) should be
located in the 12 o'clock position.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

Fig. 64: Locating Tensioner Pin
Courtesy of GENERAL MOTORS CORP.

10. Remove the EN 46330 . See Special Tools .

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

Fig. 65: Identifying Camshaft Sprocket Bolt Tightening Sequence
Courtesy of GENERAL MOTORS CORP.

11. Tighten the camshaft sprocket bolt

Tighten:

1. Tighten the bolt a first pass to 75 N.m (55 lb ft).

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

2. Tighten the bolt a final pass an additional 50 degrees using J 45059 .

Fig. 66: View Of Special Tool & Bolts
Courtesy of GENERAL MOTORS CORP.

12. Remove the J 42386-A (1) and bolts. See Special Tools .

13. Install the starter motor. Refer to Starter Motor Replacement (4.3L) or Starter Motor

Replacement (4.8L, 5.3L, 6.0L, and 6.2L) or Starter Motor Replacement (6.6L) .

14. Install the oil pump. Refer to Oil Pump, Screen, and Crankshaft Oil Deflector

Replacement (LY6, L76 and L92) or Oil Pump, Screen, and Crankshaft Oil
Deflector Replacement (LH6, LMG, LY2 and LY5).

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado