Chevrolet Silverado / GMC Sierra. Service manual — part 508

Fig. 335: View Of Charge Air Inlet Pipe
Courtesy of GENERAL MOTORS CORP.

12. Position the cooling fan shroud bracket (2).

13. Install the cooling fan shroud bracket bolts (1).

Tighten: Tighten the fan shroud bolt to 8 N.m (71 lb in).

Tighten: Tighten the fan shroud bracket to engine block bolts to 58N.m (63 lb ft).

14. Install the charge air inlet pipe. Refer to Charge Air Cooler Inlet Pipe Replacement .

15. Fill the cooling system. Refer to Cooling System Draining and Filling (Vac-N-Fill) or

Cooling System Draining and Filling (Static Fill) .

ENGINE OIL PRESSURE SENSOR AND/OR SWITCH REPLACEMENT

2008 Chevrolet Silverado 1500

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

Tools Required

J 41712 Oil Pressure Switch Socket

Removal Procedure

Fig. 336: View Of Oil Pressure Sensor Electrical Connector
Courtesy of GENERAL MOTORS CORP.

IMPORTANT: Clean the area around the sensor. Do not allow debris to

enter the engine.

2008 Chevrolet Silverado 1500

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

1. Remove the left wheelhouse inner panel. Refer to Front Wheelhouse Liner Replacement

- Left Side (Chevrolet) or Front Wheelhouse Liner Replacement - Left Side (GMC) .

2. Disconnect the oil pressure sensor electrical connector.

Fig. 337: View Of Oil Pressure Sensor
Courtesy of GENERAL MOTORS CORP.

3. Using J 41712 , remove the oil pressure sensor (1).

Installation Procedure

2008 Chevrolet Silverado 1500

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

Fig. 338: View Of Oil Pressure Sensor
Courtesy of GENERAL MOTORS CORP.

1. Apply sealant to the threads of the oil pressure sensor. Refer to Sealers, Adhesives, and

Lubricants for the correct part number.

2. Using J 41712 , install the oil pressure sensor (1).

Tighten: Tighten the sensor to 49 N.m (36 lb ft).

NOTE:

Refer to Fastener Notice .

2008 Chevrolet Silverado 1500

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