Express 1500 AWD V8-5.3L (2008)
Radiator: Service and Repair
Radiator Replacement (Gas)
Special Tools
J 38185 Hose Clamp Pliers
Removal Procedure
Important: Always install a new set of insulators when replacing a radiator. Used insulators may be worn or too large for the new radiator.
These conditions may cause the new radiator to be loose.
1. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement for the 4.8L, 5.3L, 6.0L, 6.2L, 7.0L engines or Air Cleaner
Assembly Replacement for the 4.3L engine.
2. Remove the coolant recovery reservoir. Refer to Coolant Recovery Reservoir Replacement (See: Coolant Reservoir/Service and Repair) .
3. Remove the clamp at the radiator inlet using the J 38185 .
4. Remove the radiator inlet hose (5) from the radiator.
5. Remove the outlet heater hose clamp at the radiator using the J 38185 .
6. Remove the outlet heater hose (2) from the radiator.
7. Remove the automatic transmission cooler lines. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and
Connection for the 4L60-E/4L65-E/4L70-E transmission or Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and
Connection for the 4L80-E/4L85-E transmission.
8. Remove the engine oil cooler lines. 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) .
9. Remove the fan shroud bolts (1) from the top of the radiator support.
10. Remove the fan shroud bolts (3) from the sides of the fan shroud.