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.

















3. Remove the components in the order indicated in the illustration and table. To remove individual components, only perform the steps shown.

INSTALLATION
1. To install, reverse the removal procedure
2. Fill the engine coolant level.