GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2003 🢒 Envoy - 4WD 🢒 Engine 🢒 Engine Cooling 🢒 Radiator Vent Inlet Hose Replacement

Removal Procedure
  1. Partially drain the cooling system. Refer to Cooling System Draining and Filling .
  2. Remove the vent inlet hose from the radiator.
  3. Remove the vent inlet hose from the surge tank.

Installation Procedure
  1. Install the vent inlet hose to the surge tank.
  2. Install the vent inlet hose to the radiator.
  3. Fill the cooling system. Refer to Cooling System Draining and Filling .