VehiCROSS 4WD V6-3.5L (1999)
Evaporator Core: Description and Operation
EVAPORATOR
The evaporator cools and dehumidifies the air before the air enters the passenger compartment. High-pressure liquid refrigerant flows through the
expansion valve (2) into the low-pressure area of the evaporator. The heat in the air passing through the evaporator core (1) is lost to the cooler surface
of the core, thereby cooling the air. As heat is lost between the air and the evaporator core surface, moisture in the vehicle condenses on the outside
surface of the evaporator core and is drained off as water.
When the evaporator malfunctions, the trouble will show up as an inadequate supply of cool air. The cause is typically a partially plugged core due to
dirt, or a malfunctioning blower motor.
The evaporator core with a laminate louver tin is a single-sided tank type where only one tank is provided under the core.
CAUTION: For the insulator (3) covers the expansion valve and the thermostat sensor as the prevention of noise and the heat insulator, use the new
parts when removing it, in case of breaking down.
