![]() It’s located on the serpentine belt that is easily recognizable due to its shape. If you can’t hear it, but you’re experiencing one of the first two symptoms, leave the car in parked gear and lift up the hood to get closer to the compressor. Unusual noise coming from the engine bay after refilling the coolant is one of the signs that something has gone wrong. NoiseĪC failures are generally expensive to repair, and if the compressor dies it might even rip the serpentine belt and cause a number of problems. The system is overcharged to the point where something can fail, so don’t risk damaging it! 3. It’s normal for AC not to engage immediately in some situations, like cold starting the engine, but if after a few minutes there’s no air coming out of the vents, shut off the AC immediately. The air coming out of the vents won’t be cold enough for the temperature you’ve set, and even at maximum power, you’ll experience a lack of airflow. If the AC is performing worse after being refilled than it did before, you’ve likely overcharged the system. There are a few ways to tell if your AC is overcharged, and the symptoms will present themselves immediately or after a short period of time. If you’ve read some of my other articles, then you know I’m all for DIY repairs, and spending the cost of labor on tools and equipment, but charging AC by yourself is something I wouldn’t recommend. Then I heard stories of people charging the AC at home with cheap coolant cans bought on Amazon or a local supermarket. I actually didn’t know this was a problem until recently, as I found it hard to believe that an AC mechanic can mess up the job. It’s also common to go with the “better safe than sorry” method of adding more coolant than necessary, causing the overcharge. The pressure gauges are either non-existent or inaccurate and lead to system overpressure. Most AC overcharge issues stem from DIY refills with cans of air conditioning freon. ![]() Because the AC coolant is toxic, fixing an overcharged AC is a job for a professional AC mechanic. The likely symptoms of an overcharged AC are poor cooling, no air coming out of the wents, weird noises from the engine bay, and check engine light turning on. What likely happened is that you’ve overcharged your AC, which can cause a number of problems. So, if your A/C has developed problems and you would rather be cool than cooked, let the highly trained and experienced technicians at Meineke have a look.You’ve charged up the AC in your car to tackle the scorching hot summer days, but when you turn it on, it’s cooling worse than it did before. Meineke auto A/C recharge services include everything from inspection to repair.
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