Chevrolet Silverado / GMC Sierra. Service manual — part 1660

Fig. 182: Removing/Installing Engine Coolant Air Bleed Pipe
Courtesy of GENERAL MOTORS CORP.

2. Install the coolant air bleed pipe (307) and seals (308) onto the cylinder heads.

3. Install the coolant air bleed pipe bolts (309).

Tighten: Tighten the bolts to 12 N.m (106 lb in).

NOTE:

Refer to Fastener Notice .

2008 Chevrolet Silverado 1500

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

Fig. 183: Removing/Installing Coolant Air Bleed Cover Bolts
Courtesy of GENERAL MOTORS CORP.

4. Install the coolant air bleed covers (313) and seals (308), if required.

5. Install the coolant air bleed cover bolts (312), if required.

Tighten: Tighten the bolts to 12 N.m (106 lb in).

2008 Chevrolet Silverado 1500

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

Fig. 184: View Of Radiator Vent Inlet Hose & Clamps
Courtesy of GENERAL MOTORS CORP.

6. Install the radiator vent inlet hose (2) to the coolant air bleed pipe fitting.

7. Position the radiator vent inlet hose clamp (1) at the coolant air bleed pipe fitting.

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

Replacement .

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

Cooling System Draining and Filling (Static Fill).

10. If the rear coolant air bleed covers were replaced, install the intake manifold. Refer to

Intake Manifold Replacement (L92 - First Design) or Intake Manifold Replacement

2008 Chevrolet Silverado 1500

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

(L92 - Second Design) or Intake Manifold Replacement (LY2 and LY6) or Intake
Manifold Replacement (LH6, LMG, LY5 and L76) .

WATER PUMP REPLACEMENT (LU3)

Tools Required

J 41240 Fan Clutch Remover and Installer

Removal Procedure

Fig. 185: View Of Radiator Outlet Hose

2008 Chevrolet Silverado 1500

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