Not So Cool (Air Conditioning Systems)
December 15, 2024
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?
Tire Warehouse Depot
250 N. Lapeer Rd.
Lake Orion, Michigan 48362
248-929-0699
Need Service?
More articles from Tire Warehouse Depot

Why is Air Not Coming Out of My Vents?
May 25, 2025
You climb inside your vehicle, start the ignition, and reach for the fan control for the heating or air conditioning. But when you try to crank it up, no air comes out of the vents. It can make for a very uncomfortable trip, whether its hot or cold outside. Its important for the comfort of you a... More

Timing is Everything (Timing Belt)
May 18, 2025
Talk about exquisite choreography; it happens under the hood of your vehicle every time you take a drive. Your engines many complex parts must work exactly together. One key is a part called a timing belt, which enables the synchronizing of two of your engines components, the camshaft, and the ... More

Easy on the Wheel (Power Steering)
May 11, 2025
Steering a vehicle these days doesn't take much effort, but if you got behind the wheel back before power steering was invented, you'd need to practically have the strength of Hercules to turn the wheel. The first power steering systems widely available changed everything. Chrysler introduced... More