2007 KIA CARNIVAL air conditioning

6.The MICRO 570 will detect the amount of ripple from the charging system to the battery. Excessive ripple usually
means the stator is damaged or that one or more generator diodes have failed.
7.The MICRO 570 will prompt you to turn on accessary loads. It will then test at idle and prompt you to rev the
engine. The analyzer will determine if the charging system can provide enough current for the demands of the
vehicle's electrical system.
When asked to turn of the accessory loads, turn of the blower to high(heater), the high beam beadlights, and
rear defogger. DO NOT use cyclical loads such as air conditioning or wind- shield wipers.
8. After the test, the MICRO 570 will display the idle voltage, load voltage and the state results.

CHAPTER 11:
Heating, Ventilation, Air Conditioning

Air Conditioning System

2007 > 2.7L V6 GASOLINE >
TROUBLESHOOTING
PROBLEM SYMPTOMS TABLE
Before replacing or repairing air conditioning components, first determine if the malfunction is due to the refrigerant
charge, air flow or compressor.
Use the table below to help you find the cause of the problem. The numbers indicate the priority of the likely cause of
the problem. Check each part in order. If necessary, replace these parts.
After correcting the malfunction, check the complete system to ensure that performance is satisfactory.
STANDARD:
Symptom Suspect Area See page
No blower operation 1. Blower fuse
2. Blower relay
3. Blower motor
4. Power mosfet
5. Blower speed control switch
6. Wire harness
No air temperature control 1. Engine coolant capacity
2. Heater control assembly
No compressor operation 1. Refrigerant capacity
2. A/C Fuse
3. Magnetic clutch
4. Compressor
5. Dual pressure switch
6. A/C switch
7. Evaporator temperature sensor
8. Wire harness
No cool comes out 1. Refrigerant capacity
2. Refrigerant pressure
3. Drive belt
4. Magnetic clutch
5. Compressor
6. Dual pressure switch
7. Evaporator temperature sensor
8. A/C switch
9. Heater control assembly
10. Wire harness
Insufficient cooling 1. Refrigerant capacity
2. Drive belt
3. Magnetic clutch
4. Compressor
5. Condenser
6. Expansion valve
7. Evaporator
8. Refrigerant lines
9. Dual pressure switch
10. Heater control assembly
No engine idle - up when A/C switch
ON 1. Engine ECM
2. Wire harness
No air inlet control 1. Heater control assembly
No mode control 1. Heater control assembly
2. Mode actuator
No cooling fan operation 1. Cooling fan fuse
2. Fan motor
3. Engine ECM
4. Wire harness

Air Conditioning System

2007 > 2.7L V6 GASOLINE >
REFRIGERANT SYSTEM SERVICE BASICS
REFRIGERANT RECOVERY
Use only service equipment that is U.L - listed and is certified to meet the requirements of SAE J2210 to remove HFC-
134a(R- 134a) from the air conditioning system.
a. Air conditioning refrigerant or lubricant vapor can irritate your eyes, nose, or throat.
b. Be careful when connecting service equipment.
c. Do not breathe refrigerant or vapor.
If accidental system discharge occurs, ventilate work area before resuming service.
Additional health and safety information may be obtained from the refrigerant and lubricant manufacturers. 1. Connect an R- 134a refrigerant
Recovery/Recycling/Charging System (A) to the high- pressure service port (B) and the low- pressure service port
(C) as shown, following the equipment manufacturer's instructions.
2.Measure the amount of refrigerant oil removed from the A/C system after the recovery process is completed. Be
sure to install the same amount of new refrigerant oil back into the A/C system before charging.
SYSTEM EVACUATION
Use only service equipment that is U.L - listed and is certified to meet the requirements of SAE J2210 to remove HFC-
134a(R- 134a) from the air conditioning system.
a.Air conditioning refrigerant or lubricant vapor can irritate your eyes, nose, or throat.
b. Be careful when connecting service equipment.
c. Do not breathe refrigerant or vapor.
If accidental system discharge occurs, ventilate work area before resuming service.

Additional health and safety information may be obtained from the refrigerant and lubricant manufacturers.1. When an A/C System has been opened to the atmosphere, such as during installation or repair, it must be
evacuated using an R- 134a refrigerant Recovery/Recycling/Charging System. (If the system has been open for
several days, the receiver/dryer should be replaced, and the system should be evacuated for several hours.)
2. Connect an R- 134a refrigerant Recovery/Recycling/Charging System (A) to the high- pressure service port (B) and
the low- pressure service port (C) as shown, following the equipment manufacturer's instructions.
3.If the low- pressure does not reach more than 93.3 kPa (700 mmHg, 27.6 in.Hg) in 10 minutes, there is probably a
leak in the system. Partially charge the system, and check for leaks (see Leak Test.).
4. Remove the low pressure valve from the low- pressure service port.
SYSTEM CHARGING
Use only service equipment that is U.L - listed and is certified to meet the requirements of SAE J2210 to remove HFC-
134a(R- 134a) from the air conditioning system.
a.Air conditioning refrigerant or lubricant vapor can irritate your eyes, nose, or throat.
b. Be careful when connecting service equipment.
c. Do not breathe refrigerant or vapor.
If accidental system discharge occurs, ventilate work area before resuming service.
Additional health and safety information may be obtained from the refrigerant and lubricant manufacturers. 1. Connect an R- 134a refrigerant Recovery/Recycling/Charging System (A) to the high- pressure service port (B) as
shown, following the equipment manufacturer's instructions.
2.Add the same amount of new refrigerant oil to system that was removed during recovery. Use only specified
refrigerant oil. Charge the system with 28.21 ± 0.88 oz. (800 ± 25g) of R- 134a refrigerant. Do not overcharge the
system the compressor will be damaged.
REFRIGERANT LEAK TEST
Always conduct a leak test with an electronic leak detector whenever leakage or refrigerant is suspected and when
conducting service operations which are accompanied by disassembly or loosening or connection fittings.

2007 > 2.7L V6 GASOLINE >
REMOVAL
1.If the compressor is marginally operable, run the engine at idle speed, and let the air conditioning work for a few
minutes, then shut the engine off.
2. Disconnect the negative cable from the battery.
3. Recover the refrigerant with a recovery/charging station (Refer to HA - 8).
4. Loosen the drive belt (Refer to HA - 14).
5. Remove the bolts, then disconnect the suction line (A) and discharge line (B) from the compressor. Plug (C) or cap
the lines immediately after disconnecting them to avoid moisture and dust contamination.
6.Disconnect the compressor clutch connector (A), and then remove 4 mounting bolts and the compressor.
INSTALLATION
1.Make sure of the length of compressor mounting bolts.
2.Install in the reverse order of removal, and note these items.
a. If you're installing a new compressor, drain all the refrigerant oil from the removed compressor, and measure its
volume, Subtract the volume of drained oil from 120cc(4.20 oz.) the result is the amount of oil you should drain