Chevrolet Silverado / GMC Sierra. Manual — part 2106

1. Remove the crankshaft position (CKP) sensor bolt (702).

2. Remove the CKP sensor (701).

3. Remove the O-ring (750) from the sensor, as required.

IMPORTANT:

The crankshaft bearing caps are machined with the
engine block, for the proper clearances. Mark or identify
each crankshaft bearing cap location and direction
before removal. The crankshaft bearing caps MUST be
installed to their original position and direction.

Do not use the bearing cap M8 side bolts again.

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. 290: Identifying Bearing Cap Bolts & Studs
Courtesy of GENERAL MOTORS CORP.

4. Remove the crankshaft bearing cap M8 bolts (127).

5. Remove the bearing cap M10 bolts (129) and studs (128).

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. 291: View Of Crankshaft Bearing Cap Bolts (M10)
Courtesy of GENERAL MOTORS CORP.

NOTE:

Refer to Fastener Notice .

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

6. Install the J 41818 (2). See Special Tools .

Tighten: Tighten the J 41818 (2) bolts to 11 N. See Special Tools .m (100 lb in).

7. Install the J 6125-1B (1) to the J 41818 (2) in order to remove the crankshaft bearing caps.

See Special Tools .

Fig. 292: View Of Crankshaft Main Bearing Caps
Courtesy of GENERAL MOTORS CORP.

8. Remove the bearing caps.

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