Chevrolet Silverado / GMC Sierra. Service manual — part 2099

Fig. 263: View Of Oil Pump & Bolts
Courtesy of GENERAL MOTORS CORP.

7. Remove the oil pump bolts (411).

8. Remove the oil pump (413).

TIMING CHAIN AND SPROCKETS REMOVAL

Tools Required

IMPORTANT: Do not allow dirt or debris to enter the oil pump assembly.

Cap ends, as necessary.

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

J 8433 Two Jaw Puller. See Special Tools .

J 41558 Crankshaft Sprocket Remover. See Special Tools .

J 41816-2 Crankshaft End Protector. See Special Tools .

J 42386-A Flywheel Holding Tool. See Special Tools .

Removal

Fig. 264: View Of Flex Plate & Bolts
Courtesy of GENERAL MOTORS CORP.

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

1. Temporarily install the automatic transmission flex plate and bolts. Refer to Automatic

Transmission Flex Plate Installation .

Fig. 265: View Of Special Tool & Bolts
Courtesy of GENERAL MOTORS CORP.

2. Install the J 42386-A (1) and bolts. See Special Tools . Use 1 M10 - 1.5 x 120 mm and 1

IMPORTANT: Do not apply threadlock to the flex plate bolts at this time.

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

M10 - 1.5 x 45 mm bolt for proper tool operation.

Tighten: Tighten the J 42386-A bolts to 50 N. See Special Tools .m (37 lb ft).

Fig. 266: View Of Camshaft Sprocket, Sprocket Bolt & Timing Chain
Courtesy of GENERAL MOTORS CORP.

3. Remove and discard the camshaft sprocket bolt (206).

NOTE:

Do not turn the crankshaft assembly after the timing chain has
been removed in order to prevent damage to the piston
assemblies or the valves.

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