Front A/C Expansion Valve
1. CHECK AMOUNT OF GAS DURING REFRIGERANT CYCLE2. SET ON MANIFOLD GAUGE SET
3. RUN ENGINE
Run engine at 1,500 rpm for at least 5 minutes.
Then check that the high pressure reading is 1.37 - 157 MPa (14 - 16 kgf/Sq.cm, 199 - 228 psi).
4. CHECK EXPANSION VALVE
If the expansion valve is faulty, the low pressure reading will drop to 0 kPa (0 kgf/Sq.cm, 0 psi), otherwise it is OK.
HINT: When the low pressure drops to 0 kPa (0 kgf/Sq.cm, 0 psi), check the receiver's IN and OUT sides for no temperature difference.