Chevrolet Silverado / GMC Sierra. Manual — part 1618

RADIATOR CLEANING

Some conditions may require the use of warm water and a mild detergent.

Clean the A/C condenser fins.

Clean between the A/C condenser and radiator.

Clean the radiator cooling fins.

Straighten any damaged cooling fins.

RADIATOR SURGE TANK REPLACEMENT (NON-HP2)

7. Fill the coolant reservoir to the FULL HOT mark.

8. Fill the cooling system. Refer to Cooling System Draining

and Filling (Vac-N-Fill) or Cooling System Draining and
Filling (Static Fill).

CAUTION: NEVER spray water on a hot radiator. The resulting steam

could cause personal injury.

NOTE:

The radiator fins are necessary for good heat transfer. Do not brush
the fins. This may cause damage to the fins, reducing heat transfer.

IMPORTANT: Remove bugs, leaves, dirt and other debris by blowing

compressed air through the engine side of the radiator.

2008 Chevrolet Silverado 1500

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

Fig. 21: Radiator Surge Tank (Non-HP2)
Courtesy of GENERAL MOTORS CORP.

Callout

Component Name

Preliminary Procedure

1. Drain the cooling system. Refer to Cooling System Draining and Filling (Vac-N-

Fill) or Cooling System Draining and Filling (Static Fill).

2. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .

1

Surge Tank Bolt

NOTE:

2008 Chevrolet Silverado 1500

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

RADIATOR SURGE TANK INLET HOSE/PIPE REPLACEMENT (NON-HP2)

Removal Procedure

Fig. 22: View Of Surge Tank Inlet Hose & Clamp
Courtesy of GENERAL MOTORS CORP.

Tighten: 10 N.m (89 lb in)

Refer to Fastener Notice .

2

Surge Tank Nut

Tighten: 10 N.m (89 lb in)

3

Surge Tank
Tip: Remove the surge tank hoses from the surge tank.

2008 Chevrolet Silverado 1500

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

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

Cooling System Draining and Filling (Static Fill).

2. Reposition the surge tank inlet hose clamp from the radiator.

3. Remove the surge tank inlet hose from the radiator.

Fig. 23: View Of Surge Tank Outlet Hose & Surge Tank

2008 Chevrolet Silverado 1500

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