Avalanche 4WD V8-5.3L (2011)
Heater Outlet Hose Replacement
Removal Procedure
1. Drain the cooling system. Refer to Cooling System Draining and Filling See: Engine, Cooling and Exhaust/Cooling System/Service and
Repair/Cooling System Draining and Filling.
2. Remove the air intake tube.
3. Remove the heater and surge tank hoses from the mounting clip.
4. Squeeze the plastic retainer release tabs.
Quick Connect Fittings
5. Pull the connection apart.
6. Remove the outlet heater hose from the water pump.
7. Reposition the outlet heater hose clamp at the surge tank.
8. Remove the outlet heater hose from the surge tank.
9. Remove the outlet heater hose.
Installation Procedure