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Cooling System Bleeding: Overview Chevrolet Venture I

  1. Open air bleed screw located on thermostat housing (there may be a second bleed screw on water pump). Slowly fill cooling system through radiator neck to base of radiator neck. Wait 2 minutes. Recheck fluid level. Add coolant to restore level to base of radiator neck.
  2. Install radiator cap. Close air bleed screws. Start engine and allow fan to cycle on and off 3 times. Check fluid level.