Chevrolet Silverado / GMC Sierra. Service manual — part 2172

Fig. 202: View Of CMP Actuator Alignment Mark & Crankshaft Sprocket
Alignment Mark
Courtesy of GENERAL MOTORS CORP.

13. Inspect the sprockets for proper alignment. The mark on the CMP actuator sprocket (1)

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

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

should be located in the 12 o'clock position.

Fig. 203: View Of Timing Chain Tensioner Bolt
Courtesy of GENERAL MOTORS CORP.

14. Install the right side bolt (231) into the timing chain tensioner.

Tighten: Tighten the timing chain tensioner bolts to 25 N.m (18 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

Fig. 204: View Of Special Tool EN 46330
Courtesy of GENERAL MOTORS CORP.

15. 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. 205: View Of Flex Plate & Bolts
Courtesy of GENERAL MOTORS CORP.

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

Transmission Flex Plate Installation .

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

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