Chevrolet Silverado / GMC Sierra. Service manual — part 1652

Fig. 150: View Of Water Pump Inlet Seal
Courtesy of GENERAL MOTORS CORP.

5. Remove the water pump inlet bolts.

6. Remove the water pump inlet from the water pump.

7. Remove and discard the water pump inlet seal.

Installation Procedure

Fig. 151: View Of Water Pump Inlet Seal
Courtesy of GENERAL MOTORS CORP.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Cooling - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

1. Install a NEW water pump inlet seal to the water pump inlet.

2. Position the water pump inlet to the water pump.

3. Install the water pump inlet bolts.

Tighten: Tighten the bolts to 15 N.m (11 lb ft).

NOTE:

Refer to Fastener Notice .

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Cooling - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 152: View Of Radiator Outlet Hose
Courtesy of GENERAL MOTORS CORP.

4. Install the radiator outlet hose to the water pump inlet.

5. Position the radiator outlet hose clamp at the water pump inlet.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Cooling - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

6. Install the air cleaner outlet duct. Refer to Air Cleaner Resonator Outlet Duct

Replacement .

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

Cooling System Draining and Filling (Static Fill).

ENGINE COOLANT THERMOSTAT REPLACEMENT

Removal Procedure

Fig. 153: View Of Thermostat & Housing
Courtesy of GENERAL MOTORS CORP.

1. Remove the thermostat housing. Refer to Engine Coolant Thermostat Housing

Replacement (LY2, LH6, LY5, LMG, LY6).

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Cooling - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado