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Why would AC go out with freon full on 98 Grand prix GTP?

1. Low refrigerant charge: Even if the refrigerant level appears to be full, it may not be at the optimal level required for the AC system to function properly. A refrigerant leak can cause the system to lose pressure and become less effective.

2. Compressor failure: The compressor is the heart of the AC system, and if it fails, the system will not be able to circulate refrigerant and cool the air. Compressor failure can be caused by various factors, such as a seized compressor, electrical issues, or a lack of lubrication.

3. Condenser fan failure: The condenser fan is responsible for dissipating heat from the condenser, which is essential for the AC system to cool the air. If the condenser fan fails, the condenser will overheat, and the system will not be able to cool the air effectively.

4. Expansion valve issues: The expansion valve regulates the flow of refrigerant into the evaporator. If the expansion valve is faulty, it can cause too much or too little refrigerant to enter the evaporator, affecting the cooling performance of the AC system.

5. Electrical problems: Electrical issues, such as a faulty AC relay, a blown fuse, or a wiring problem, can prevent the AC system from receiving power and functioning properly.

6. Evaporator issues: The evaporator is responsible for absorbing heat from the air inside the vehicle. If the evaporator is clogged or damaged, it will not be able to absorb heat effectively, resulting in poor cooling performance.

To determine the exact cause of the AC not working, it is recommended to have the vehicle diagnosed by a qualified mechanic or automotive technician who can identify and repair the issue effectively.