Not So Cool (Air Conditioning Systems)
May 17, 2020
There's nothing quite like getting in your vehicle on a hot day, switching on the air conditioning and having warm air blow out of the vents. You may have had no problem for months and then, one day, you are driving around in a sauna. You're hot stuff, but not in a good way!
So what goes wrong when the AC isn't working? It could be a lot of things because the system has many different components. One thing that's a common cause is the vehicle is low on refrigerant (it used to be called Freon). If that's the case, it's not as simple as simply adding more. Sure, it may fix it quickly for a short time, but it's more likely than not that the refrigerant will just leak out again.
The original Freon used in air conditioners was destroying the Earth's ozone layer, so that's not used much any more. But the one that's currently used also contributes to global warming, so it's important that as little of that escapes as possible. So a technician will determine if there's a leak in your system, where it is and fix that before adding new refrigerant.
Your vehicle also has an evaporator or two, and those can fail. Leaks are often the problem with them as well. The big component that can go bad is the compressor, often a victim of age, wear or neglect.
A technician will also check to see that the blower is working correctly. That's what blows that cool air into the cabin. Sometimes the motor will fail, a relay will go bad or a fuse will blow. As you can see, there are lots of different parts involved here!
The good news is that your vehicle's service facility has the special equipment to recover the refrigerant and check the system's pressure, both vital to properly servicing the air conditioning system.
As with many vehicle components, regular maintenance can go a long way to minimizing problems in the air conditioning system. It can reduce the chance of the compressor having to be replaced, too. Pretty cool, huh?
ABC Auto Works
127 E. Walled Lake Drive
Walled Lake, Michigan 48390
800-742-4511
Need Service?
More articles from ABC Auto Repair & Tire Center
Differential Essential (Differential Fluid Exchange)
December 29, 2024
What's the dif? To an automotive technician, it's the differential, a part of your vehicle that helps direct power from the engine to the wheels. The differential is a gearbox that enables the drive wheels to turn at different speeds (they do that when you turn). Inside the differential is a f... More
Timing is Everything (Timing Cover Replacement)
December 22, 2024
Theres an important part in your vehicle that shields your timing belt, timing chain or cam belt from the debris and gunk that can be kicked up from the road. Its called the timing cover. Its important because the timing belt or chain is what coordinates parts of your engine called the camshaft... More
Why did my vehicle fail its emissions test?
December 15, 2024
We all want to breathe clean air and keep our planet green. One of the ways to do that is by requiring all vehicles with internal combustion engines to pass an emissions test. Thats because these vehicles can be big polluters. Everyone wants their car to pass the test so they can continue the... More