What to Do If the Buick Excelle's Air Conditioning Cooling Is Not Ideal?
1 Answers
Under normal circumstances, if the air conditioning is not cooling properly, you can check whether the coolant is insufficient and add more if needed. The most common issue is a lack of refrigerant (Freon). When starting the system, first feel the return pipe to judge the temperature—if it's cold, check if the internal fan speed is too low, or clean or replace the internal pipe fins and dust filters. Below is relevant information: 1. Solution: Observe through the sight glass on the dryer tank. During normal operation, if there are continuous slow bubbles in the sight glass, it indicates insufficient refrigerant. If obvious bubble turbulence is observed, it means the refrigerant is severely insufficient. If the refrigerant is insufficient or too low, the solution is to add refrigerant. However, note that if adding from the low-pressure side, do not invert the refrigerant bottle; if adding from the high-pressure side, do not start the engine. 2. Solution for excessive refrigerant: Observe through the sight glass on the dryer tank. If no bubbles are visible during operation and none appear after the compressor stops, the refrigerant is definitely excessive. If the pressurized cooling oil is overfilled, you may see cloudy bubbles in the sight glass during normal operation. If excessive refrigerant is confirmed, you can slowly release some from the low-pressure side maintenance port of the air conditioning system.
