Rear Cooling Unit

REAR COOLING UNIT

ON-VEHICLE INSPECTION




1. REMOVE LUGGAGE COMPARTMENT FRONT COVER

2. INSPECT FOR LEAKAGE OF REFRIGERANT
a. Remove the air duct No.2.
b. Using a gas leak detector, check for leakage of refrigerant from evaporator and joint.
If there is leakage, check the tightening torque at the joints or evaporator.

3. INSPECT EXPANSION VALVE
a. Check quantity of gas during refrigeration cycle.
b. Set on manifold gauge set.
c. Run engine.
1. Run the engine at 1,500 rpm for at least 5 minutes.
2. Then check that the high pressure reading is 1.37 - 1.57 Mpa (14 - 16 kgf-sq.cm, 199 - 288 psi).

d. Check expansion valve.
If the expansion valve is faulty, the low pressure reading will drop to 0 kPa (0 kgf sq.cm, 0 psi)

HINT: When the lower pressure drop to 0 kPa (0 kgf-sq.cm, 0 psi), feel the receiver's IN and OUT sides for no temperature difference.