Aviator 2WD V8-4.6L DOHC (2003)
Heater Hose: Service and Repair
Main Climate Control
HEATER CONTROL VALVE AND HEATER HOSES
CAUTION: This engine is equipped with a cold side thermostat. Whenever the engine block or the front or rear (auxiliary) heater cores have
been drained, fill and bleed procedures must be carried out or damage to the engine can occur.
NOTE: Lubricate the coolant hoses with plain water only if needed.
REMOVAL
1. If removing any component other than the heater control valve, drain the engine coolant.
2. If replacing the heater control valve only, clamp off the heater hoses at the heater control valve inlet and outlet.
