Raider 4WD V6-3.7L SOHC (2007)
Heater Core: Description and Operation
CORE - HEATER
DESCRIPTION
The heater core (1) is located in the HVAC housing, behind the instrument panel. The heater core is a heat exchanger made of rows of tubes with fins.
The heater core tubes (2) are attached to the side of the heater core and are secured to the HVAC housing by a removable flange (3).
The heater core tubes are not serviced separately from the heater core. The HVAC housing must be removed from the vehicle to service the heater core.
OPERATION
Engine coolant is circulated through the heater hoses to the heater core at all times. As the coolant flows through the heater core, heat is removed from
the engine and is transferred to the heater core tubes and fins. Air directed through the heater core picks up the heat from the heater core fins. The
blend-air door allows control of the heater output air temperature by regulating the amount of air flowing through the heater core. The blower motor
speed controls the volume of air flowing through the HVAC housing. The heater core cannot be repaired and, if faulty or damaged it must be replaced.
