* Low refrigerant level: The most common cause of a car AC not blowing cold is a low refrigerant level. Refrigerant is the fluid that circulates through the AC system and absorbs heat from the air. If the refrigerant level is low, the AC system will not be able to absorb as much heat and the air will not be as cold.
* Compressor not engaging: The compressor is the heart of the AC system. It compresses the refrigerant and circulates it through the system. If the compressor is not engaging, the refrigerant will not be able to circulate and the AC system will not be able to cool the air.
* Expansion valve stuck: The expansion valve is a device that controls the flow of refrigerant into the evaporator. If the expansion valve is stuck, the refrigerant will not be able to flow into the evaporator and the AC system will not be able to cool the air.
* Evaporator coil frozen: The evaporator coil is the part of the AC system that absorbs heat from the air. If the evaporator coil is frozen, the AC system will not be able to absorb heat and the air will not be as cold.
If you have checked the refrigerant level and the compressor is engaging, you should take your Jeep to a mechanic to have the AC system diagnosed. The mechanic will be able to determine the cause of the problem and recommend the best course of action.
