Really?

You’re counting on your vehicle’s air conditioner to work when the weather turns hot. If it needs to be fixed, however, you might feel an alternating warm and cool air pattern. That might leave you asking, “Really? Can’t you make up your mind, A/C?” If you find yourself in this predicament, stop questioning your car’s A/C and bring it to the attention of the ASE-certified technicians at A & J Automotive in Raleigh, North Carolina.

What Are You Doing?

Before you become so frustrated that you ask your automobile what it’s doing, let us review a few common AC issues. Your car’s cooling system uses a refrigerant that cycles through gas and liquid forms. One component that’s key to this process is the expansion valve. True to its name, the expansion valve takes away pressure from the refrigerant in its liquid phase, allowing it to expand back into gas form in the evaporator. If the expansion valve goes bad, it may improperly regulate the flow (allowing too much or too little to pass through). This could explain the alternating warm and cool air.

Similarly, the refrigerant must pass through the compressor. This component cycles on and off at the appropriate times using the compressor clutch. If this part is failing, it may not engage. The air you get inside the passenger cabin may be cool at first, then quickly turn warm because the compressor cannot come on to change the state of the refrigerant. If your system leaks, you will lose necessary refrigerant. Once the level becomes too low, the air flowing from your vents will not be cool enough. Occasionally, your vehicle will blow a fuse. If this occurs with a fuse that controls the air conditioner, your system will not work.

Can You Please Tame the Air Conditioner?

When you entrust your vehicle’s AC to A & J Automotive, you won’t have to question our abilities or integrity. Yes, we can tame your wayward air conditioner. We’ve been doing that with an added measure of customer care since we opened in 1996. A 36-month/36,000-mile warranty covers our award-winning work. Along with the option of early drop-off, you can also take advantage of our free local shuttle and loaner cars. And, of course, our rates are always reasonable.

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If your car’s AC is making a strange noise, it could be due to a number of different factors. Here are a few potential causes of strange noises coming from your car’s AC unit and what you can do about them.

1. Loose or damaged fan belts

If the noise coming from your car’s AC unit sounds like squealing or screeching, it could be due to loose or damaged fan belts. If this is the case, you’ll need to have the belts replaced as soon as possible. Fan belts that are in good condition are essential for proper functioning of the AC unit.

2. Refrigerant leaks

Another potential cause of strange noises coming from your car’s AC unit is refrigerant leaks. Refrigerant is what makes the air cold, so if there’s a leak, the air won’t be as cold as it should be. In addition to making strange noises, refrigerant leaks can also cause the AC unit to freeze up. If you suspect that your car might have a refrigerant leak, you’ll need to take it to a mechanic so they can check for leaks and repair them if necessary.

3. Clogged air filters

If the noise coming from your car’s AC unit is more like a rattling sound, it could be due to clogged air filters. When air filters become clogged with dirt and debris, they restrict airflow and cause all sorts of problems, including strange noises. To fix this problem, simply replace the clogged air filter with a new one. You can usually find replacement air filters at any auto parts store.

If your car’s AC is making a strange noise, it could be due to any number of different issues. The best way to determine what’s causing the problem is to take your car to a mechanic and have them take a look. They’ll be able to diagnose the problem and let you know what needs to be done in order to fix it. In some cases, such as when there are loose or damaged fan belts, you may be able to fix the problem yourself; in other cases, such as when there are refrigerant leaks, you’ll need professional help. Either way, it’s important to get the problem diagnosed and fixed as soon as possible so that your car’s AC can continue working properly.

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