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What Causes the Air Conditioning in Buick Excelle to Stop Cooling?

1 Answers

EllianaLynn

07/30/25 3:51am

The reasons why the air conditioning in Buick Excelle suddenly stops cooling: 1. Dirty air conditioning filter: No air or reduced airflow from the air conditioning, requiring inspection of whether the air filter is dirty, whether the blower can operate normally, and whether the air conditioning flap motor can switch properly. 2. Lack of Freon in the air conditioning system: A shortage of Freon in the system necessitates checking for leaks. After confirming and repairing, Freon should be replenished to the standard level. 3. Engine cooling system failure: A dirty radiator condenser or engine cooling system malfunction leading to excessively high water temperature, such as a non-functioning cooling fan, resulting in poor heat dissipation from the radiator and condenser. 4. Incorrect sensor data: Faulty data from sensors like the air conditioning pressure sensor or evaporator box sensor can prevent the air conditioning system from adjusting correctly. 5. Damaged air conditioning compressor adjustment solenoid valve: Issues like a damaged solenoid valve, clutch, or internal components of the air conditioning compressor. 6. Air conditioning system wiring or control unit failure: Problems caused by faulty wiring or control unit in the air conditioning system. When the car air conditioning stops cooling, it is advisable to choose a relatively professional repair facility for inspection and repair.

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