Chevrolet Silverado / GMC Sierra. Service manual — part 1674

Fig. 238: View Of Oil Cooler Hose Clip At Lower Fan Shroud
Courtesy of GENERAL MOTORS CORP.

1. Install the lower fan shroud and ensure it is centered over lower radiator support.

2. If equipped with the engine oil cooler, Install the oil cooler hose clip to the lower fan

shroud.

3. Install the cooling fan. Refer to Fan Replacement (Diesel) or Fan Replacement

(Mechanical).

RADIATOR REPLACEMENT (4.3, 4.8, 5.3, AND 6.0L)

Removal Procedure

2008 Chevrolet Silverado 1500

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

Fig. 239: View Of Radiator & Bolts
Courtesy of GENERAL MOTORS CORP.

1. Remove the cooling fan and shroud. Refer to Cooling Fan and Shroud Replacement

(Non-HP2).

2. Remove the radiator outlet hose for the 4.3L engine, or the 4.8L, 5.3L and 6.0L engines.

Refer to Radiator Outlet Hose Replacement (Non-HP2).

3. Disconnect the engine oil cooler lines from the radiator, If Equipped. Refer to Engine Oil

Cooler Pipe/Hose Quick Connect Fitting.

4. Disconnect the transmission oil cooler lines from the radiator, If Equipped. Refer to

Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and
Connection .

5. Remove the radiator bolts.

2008 Chevrolet Silverado 1500

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

6. Remove the radiator.

Installation Procedure

Fig. 240: View Of Radiator & Bolts
Courtesy of GENERAL MOTORS CORP.

1. Install the radiator.

2. Install the radiator bolts.

Tighten: Tighten the bolts to 25 N.m (18 lb ft).

NOTE:

Refer to Fastener Notice .

2008 Chevrolet Silverado 1500

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

3. Connect the transmission oil cooler lines to the radiator, If Equipped. Refer to

Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and
Connection .

4. Connect the engine oil cooler lines to the radiator, If Equipped. Refer to Engine Oil

Cooler Pipe/Hose Quick Connect Fitting.

5. Install the radiator outlet hose for the 4.3L engine, or the 4.8L, 5.3L and 6.0L engines.

Refer to Radiator Outlet Hose Replacement (Non-HP2).

6. Install the cooling fan and shroud. Refer to Cooling Fan and Shroud Replacement (Non-

HP2).

RADIATOR REPLACEMENT (LLM)

Fig. 241: View Of Radiator Assembly & Bolts
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. If necessary, remove air cleaner resonator duct. Refer to Air Cleaner Resonator

2008 Chevrolet Silverado 1500

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