What are the reasons for poor cooling effect in sedans?
2 Answers
The reasons for poor cooling effect in sedans are: 1. Reduced heat dissipation capacity of the condenser; 2. Long-term closure of the internal circulation switch; 3. Refrigerant leakage, insufficient pipeline pressure; 4. Blocked air ducts, excessively dirty air conditioning pipelines; 5. Blocked dryer or expansion valve; 6. Aged or loose belts; 7. Presence of water in the pipelines. The solutions for poor cooling effect in sedans are: 1. Clean the condenser; 2. Repair or replace the compressor; 3. Add air conditioning refrigerant; 4. Adjust the belt tension. The maintenance methods for car air conditioning are: 1. Choose an appropriate air conditioning temperature; 2. Control the direction of the air outlet; 3. Avoid prolonged operation; 4. Avoid smoking when using the air conditioning; 5. Avoid using the air conditioning at low speeds; 6. Turn off the air conditioning before shutting down the engine.
I recently encountered the same issue with weak AC performance, making summer drives unbearable. It's most likely due to insufficient refrigerant, just like a fridge running low on Freon. During my last maintenance, I found the condenser fins completely clogged with willow catkins and insect remains, cutting heat dissipation efficiency in half. If there's a leak in the AC lines or the compressor belt is worn out, cooling efficiency will plummet. Special reminder: don't randomly recharge refrigerant - older cars' seals are prone to failure. Remember to check the cabin air filter too. My three-year-old car's filter was clogged like a facemask, reducing airflow and cooling. Regular radiator cleaning and filter replacement can actually prevent 80% of AC issues.
