Chevrolet Silverado / GMC Sierra. Service manual — part 436

Fig. 72: View Of IAT Sensor & Electrical Connector
Courtesy of GENERAL MOTORS CORP.

6. Disconnect the intake air temperature (IAT) sensor electrical connector (1).

7. Remove the IAT sensor (2).

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 73: View Of Center Intake Manifold
Courtesy of GENERAL MOTORS CORP.

8. Remove the center intake manifold bolts/nuts.

9. Pull-up the center intake manifold in order to remove.

10. Remove and discard the gaskets.

11. Clean the center intake manifold in cleaning solvent and air dry.

Installation Procedure

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 74: View Of Center Intake Manifold
Courtesy of GENERAL MOTORS CORP.

1. Install NEW center intake manifold gaskets.

2. Install the center intake manifold.

3. Install the center intake manifold bolts/nuts.

Tighten: Tighten the bolts/nuts to 10 N.m (89 lb in).

NOTE:

Refer to Fastener Notice .

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 75: View Of IAT Sensor & Electrical Connector
Courtesy of GENERAL MOTORS CORP.

4. Install the IAT sensor (2).

Tighten: Tighten the sensor to 10 N.m (89 lb in).

5. Connect the IAT sensor electrical connector (1).

6. Install the turbocharger. Refer to Turbocharger Replacement.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado