Chevrolet Silverado / GMC Sierra. Service manual — part 2170

Fig. 195: View Of Compressed Tensioner
Courtesy of GENERAL MOTORS CORP.

6. Compress the timing chain tensioner guide and install 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. 196: View Of Timing Chain Tensioner & Left Side Bolt
Courtesy of GENERAL MOTORS CORP.

7. Install the timing chain tensioner (232) and left side bolt (231). Do not install the right side

bolt at this time. The right side bolt will be installed after the camshaft position (CMP)
actuator and chain have been installed onto the engine.

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. 197: View Of Tie Strap Through Center Of Actuator
Courtesy of GENERAL MOTORS CORP.

8. Remove the tie strap (1) from the actuator.

CAUTION: Refer to Camshaft Position Actuator Removal and

Installation Caution .

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. 198: Identifying Alignment Hole & Locating Pin
Courtesy of GENERAL MOTORS CORP.

9. Identify the alignment hole (1) in the rear face of the CMP actuator and the locating pin (2)

on the front face of the camshaft.

IMPORTANT:

Properly locate the CMP actuator onto the locating pin of
the camshaft.

The sprocket teeth and timing chain must mesh.

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

Do not use the CMP solenoid valve again. Install a NEW
valve during assembly.

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