What Are the Reasons for Poor Cooling in Car Air Conditioning?

[LaAna]

The reasons for poor cooling in car air conditioning are: 1. Excessive refrigerant leading to insufficient cooling; 2. Air in the system causing insufficient cooling or poor refrigerant circulation; 3. Insufficient refrigerant resulting in inadequate cooling; 4. Compressor issues. The solutions for poor cooling in car air conditioning are: 1. Adding air conditioning refrigerant; 2. Checking the pipelines, air conditioning pump, condenser, and evaporator in the car air conditioning system for damage that may cause refrigerant leakage; 3. Inspecting the compressor; 4. Cleaning or replacing the air conditioning filter. The components of car air conditioning cooling are: compressor, condenser, liquid storage dryer, expansion valve, and evaporator.

[MacFinn]

I've been running a repair shop for over ten years, and the most common issue with car air conditioning not cooling is refrigerant leakage. Last time, a regular customer brought in an old Accord, and the cooling was like blowing a fan. Using fluorescent dye, we found a pinhole leak in the condenser. Actually, car owners can check for oil stains on the AC lines themselves or observe if the compressor is frequently cycling on and off. Also, remember to change the cabin air filter every two years; otherwise, dust blocking the air ducts will render even the best AC useless. If the cooling works fine on the highway but fails in traffic jams, it's most likely due to a faulty cooling fan or a dirty condenser.

[VanBella]

Last summer when I took my daughter on a road trip, the AC suddenly stopped working. Turned out the AC pressure switch was faulty. Once this thing fails, it cuts off the compressor protection system - total nightmare. My advice: first try switching between recirculation and fresh air modes. Recirculation boosts cooling efficiency by at least 30%. If you smell something sour, just replace the cabin air filter and clean the evaporator - guaranteed fix. Oh, and modern cars are prone to electronic control failures. My neighbor's Tesla had a loose control module connection, the dealership diagnosed it instantly with their computer scan.

[DelWalker]

As a female car owner, I totally understand the despair of getting into a car with weak AC on a scorching day! Once at the beauty salon, I found a leaf stuck in the blower, cutting the airflow in half. The mechanic advised not to park too close to trees, especially during the willow catkin season, and to frequently rinse the radiator fins. For a DIY check, after starting the car, feel the low-pressure pipe—it should be icy cold with water droplets. If it's at room temperature, it might indicate low refrigerant or a clogged expansion valve. Also, remember that setting the temperature too low can increase engine load.