Sierra 1500 4WD V8-5.3L (2008)
Radiator: Service and Repair
Radiator Replacement
Radiator Replacement (4.3, 4.8, 5.3, and 6.0L)
Removal Procedure
1. Remove the cooling fan and shroud. Refer to Cooling Fan and Shroud Replacement (Non-HP2) (See: Radiator Cooling Fan/Service and Repair) .
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) (
See: Radiator Hose/Service and Repair) .
3. Disconnect the engine oil cooler lines from the radiator, If Equipped . Refer to Engine Oil Cooler Pipe/Hose Quick Connect Fitting (See:
Engine/Engine Lubrication/Oil Cooler/Service and Repair/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.
6. Remove the radiator.
Installation Procedure
1. Install the radiator.
Notice: Refer to Fastener Notice .
2. Install the radiator bolts.
Tighten the bolts to 25 N.m (18 lb ft).
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 (See: Engine/Engine
Lubrication/Oil Cooler/Service and Repair/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) (
See: Radiator Hose/Service and Repair) .
6. Install the cooling fan and shroud. Refer to Cooling Fan and Shroud Replacement (Non-HP2) (See: Radiator Cooling Fan/Service and Repair) .