Equator 2WD V6-4.0L (2009)
Refrigerant: Testing and Inspection
Checking Procedure
CHECKING PROCEDURE
NOTE: To prevent inaccurate or false readings, make sure there is no refrigerant vapor, shop chemicals, or cigarette smoke in the vicinity of the
vehicle. Perform the leak test in a calm area (low air/wind movement) so that the leaking refrigerant is not dispersed.
1. Turn the engine OFF.
2. Connect the manifold gauge set (J-39183-C) to the A/C service ports. Refer to [Precaution for Service Equipment].
3. Check if the A/C refrigerant pressure is at least 345 kPa (3.52 kg/cm2, 50 psi) above a temperature of 16 degree C (61 degree F). If less than
specification, recover/evacuate and recharge the system with the specified amount of refrigerant. Refer to [HFC-134a (R-134a) Service
Procedure].
NOTE: At temperatures below 16 degree C (61 degree F), leaks may not be detected since the system may not reach 345 kPa (3.52 kg/sq.cm, 50
psi) pressure.
4. Perform the leak test from the high-pressure side (A/C compressor discharge "a" to evaporator inlet "f") to the low-pressure side (A/C evaporator
drain hose "g" to shaft seal "k"). Refer to [Refrigeration System: Component]. Clean the component to be checked and carefully move the
electronic refrigerant leak detector probe completely around the following connections and components.
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Check the compressor shaft seal
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Check the high and low-pressure pipe and hose fittings, relief valve, and compressor shaft seal
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Check the liquid tank
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Check the refrigerant pressure sensor
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Check all around the service valves. Check that the service valve caps are screwed tightly on the service valves (to prevent leaks).
NOTE: After removing manifold gauge set (J-39183-C) from the service valves, wipe any residue from the service valves to prevent any false
readings by the electronic refrigerant leak detector (J-41995).
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Evaporator With engine OFF, turn blower fan on "High" for at least 15 seconds to dissipate any refrigerant trace in the heater and cooling unit
assembly. Wait a minimum of 10 minutes accumulation time (refer to the manufacturer's recommended procedure for actual wait time) before
inserting the electronic refrigerant leak detector probe into the heater and cooling unit assembly drain hose.
NOTE: Keep the probe inserted for at least 10 seconds. Use caution not to contaminate the probe tip with water or dirt that may be in the drain
hose.
5. If a leak is detected, verify at least once by blowing compressed air into the area of the suspected leak, then repeat the leak check.
6. Do not stop when one leak is found. Continue to check for additional leaks at all system components and connections.
7. If no leaks are found, perform steps 8 - 11.
8. Start the engine.
9. Set the heater A/C controls as follows:
a. A/C switch to ON
b. Air flow to VENT mode
c. Intake position to RECIRCULATION mode
d. Temperature to MAX cold
e. Blower fan speed to HIGH
10. Run the engine at 1,500 rpm for at least 2 minutes.
11. Turn the engine OFF and perform the leak check again following steps 4 through 6 above.
