GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2000 🢒 Astro - 2WD 🢒 General Information 🢒 Maintenance and Lubrication 🢒 Radiator Hose Replacement

Removal Procedure

    Caution: As long as there is pressure in the cooling system, the temperature can be considerably higher than the boiling temperature of the solution in the radiator without causing the solution to boil. Removal of the pressure cap while the engine is hot and pressure is high will cause the solution to boil instantaneously -- possibly with explosive force -- spewing the solution over the engine, fenders and the person removing the cap.

  1. Drain the coolant from the radiator to a level below the hose being removed. Refer to Cooling System Draining and Filling .
  2. Remove air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls.

    3. Object Number: 48320 Size: SH
  3. Remove the radiator inlet hose and the clamp from the radiator and the coolant outlet (upper hose).
  4. Remove the radiator outlet hose and the clamp from the radiator and the coolant pump (lower hose).

Installation Procedure

    Object Number: 48320 Size: SH
  1. Connect the radiator outlet hose and the clamps to the radiator and the coolant pump (lower hose).
  2. Connect the radiator inlet hose and the clamps to the radiator and coolant outlet (upper hose).
  3. Install air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls.
  4. Fill the coolant to the proper level. Refer to Cooling System Draining and Filling .
  5. Start the engine. After the engine reaches normal operating temperature, check for coolant leaks.