GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Chevrolet
🢒
2003
🢒
Blazer - 4WD - RHD
🢒
Engine
🢒
Engine Cooling
🢒 Radiator Replacement
Removal Procedure
Drain the coolant from the radiator. Refer to
Cooling System Draining and Filling
.
Disconnect the coolant recovery reservoir hose.
Remove the radiator hose clamps.
Disconnect the upper radiator hose from the radiator.
Remove the upper fan shroud. Refer to
Fan Shroud Replacement
.
Disconnect the radiator hoses from the radiator.
Disconnect the engine oil cooler lines from the radiator, if equipped. Refer to
Engine Oil Cooler Hose/Pipe Replacement
.
Disconnect the transmission oil cooler lines from the radiator, if equipped. Refer to
Engine Oil Cooler Hose/Pipe Replacement
.
Lift the lower fan shroud just enough to disengage the locating tabs.
Remove the radiator by lifting the radiator up and out of the vehicle.
Inspect all sealing surfaces for deterioration or signs of leakage.
Installation Procedure
Place the lower fan shroud in position under the cooling fan. Refer to
Fan Shroud Replacement
.
Install the radiator onto the rubber mounts in the vehicle.
Connect the engine oil cooler line to the radiator, if equipped. Refer to
Engine Oil Cooler Hose/Pipe Replacement
.
Connect the transmission oil cooler lines to the radiator, if equipped. Refer to
Engine Oil Cooler Hose/Pipe Replacement
.
Connect the radiator hoses to the radiator.
Fasten the upper fan shroud to the lower fan shroud. Refer to
Fan Shroud Replacement
.
Connect the coolant recovery reservoir hose to the radiator.
Fill the radiator with the specified coolant and concentration. Refer to
Cooling System Draining and Filling
.
Inspect the cooling system for leaks.