Chevrolet Silverado / GMC Sierra. Service manual — part 2175

Fig. 213: View Of Timing Chain Tensioner
Courtesy of GENERAL MOTORS CORP.

7. Install the timing chain tensioner (232) and bolts (231).

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

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

Fig. 214: View Of Camshaft Sprocket, Timing Chain & Bolt
Courtesy of GENERAL MOTORS CORP.

8. Install the camshaft sprocket (205), timing chain (208), and NEW bolt (206).

IMPORTANT:

Do not use the camshaft sprocket bolt again. Install a
NEW bolt during assembly.

The sprocket teeth and timing chain must mesh.

The camshaft and the crankshaft sprocket alignment
marks MUST be aligned properly.

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. 215: 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. 216: Locating Tensioner Pin
Courtesy of GENERAL MOTORS CORP.

10. Remove the EN 46330 . See Special Tools .

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