What causes the air conditioning in a Cadillac ATS-L to not cool?
2 Answers
Here are the reasons why the air conditioning in a Cadillac may not cool: Blocked expansion valve in the air conditioning system: This prevents the refrigerant from circulating properly, leading to a lack of cooling. The hot/cold air blend door may malfunction, causing the hot air door to open while driving. Another issue is the evaporator freezing up during operation, which blocks cold air from being blown out. This is usually accompanied by a noticeable reduction in airflow. System malfunction: This can sometimes prevent the electromagnetic clutch coil from engaging properly. Additionally, a faulty electromagnetic clutch coil may fail to engage consistently.
Last time I took my Cadillac ATS-L for an outing, the air conditioning suddenly stopped cooling on a hot day, making it feel like a sauna. I first did a quick check: made sure the AC switch was turned on correctly and the fan speed was adjusted properly, but everything seemed fine. Then I checked the fuse box, found a blown AC fuse, but replacing it didn’t fix the issue. Later, a mechanic tested it and found out the refrigerant had completely leaked, possibly due to a loose pipe connection or a worn-out seal. This kind of refrigerant leak is quite common. If not fixed promptly, it not only affects driving comfort and increases the risk of heatstroke in summer but can also shorten the battery’s lifespan. I quickly went to the shop to refill the refrigerant and replace the seals. After the repair, the car was much cooler on the highway. Remember, if your AC has issues, don’t delay—fixing it early saves both hassle and money.
