What is wrong with my AC?
Summertime in Dallas, Texas isn’t the time for an auto ac system to stop blowing cold air or stop altogether. When it does, you can be sure that the driver of that vehicle is heading to the nearest auto ac repair shop! As early as April or May, we can have temperatures in the 80s and with the spring rains, that humidity can hit the 80s and 90s fast.
With this all being stated, we’re going to answer some auto ac repair questions. Hopefully, we can give you some kind of idea what’s wrong and if you need to get your vehicle into an auto ac repair shop, or maybe the auto ac repair cost is going to be more than the car is worth. Depending on how old your car is, along with the make and model, you may determine that the auto ac repair parts aren’t affordable or even available anymore.
That is the most common question in any auto ac repair shop, and the answer can vary from vehicle to vehicle. There isn’t one standard answer. Check out these three things before you take your car in for auto ac repair, it could save you some money.
AUTO AC IS COOL BUT NOT GETTING COLD
When you have your car’s air conditioning set on ‘max cool’ and the fan on high, but you’re only get cool air, not cold air:
- Check the cooling fans to make sure they are running. These are located on the condenser or radiator.
- Check for bugs, dirt, or leaves blocking the condenser.
- Check the cabin air filter make sure it isn’t clogged.
- If you have a manifold gauge, check the pressure settings to make sure not too high or too low.
- THE AC COMPRESSOR
When diagnosing an auto air conditioner issue, the compressor is often the problem identified by any of the following. If you determine it is one of these, you need to call an auto ac repair shop and get quotes on repairs:
- With the car motor running turn the air conditioner on max with the fan blowing high. Is the compressor clutch engaging?
- If the clutch is not engaging the refrigerant level is okay, check the voltage to the compressor with a voltmeter.
- If the voltage is good, the refrigerant is good, then it is probably the clutch.
- If there isn’t any voltage, it could be a fuse or insufficient refrigerant.
- ANY LEAKS
One of the biggest problems that auto ac repair shops see is low refrigerant because of a leak. You can do your own search for a leak, then you can call a few ac auto repair shops and see what it will cost to fix.
- With an UV A/C leak detection kit, follow the instructions and inject the UV dye into the auto ac system. If there is a leak, it will show up around any of the following areas:
- The fittings – you can tighten these yourself and see if that stops the leak.
- The compressor hose manifolds.
- The front seal, O-rings at the pressure switches.
- Make sure the hoses aren’t crimped at the fittings.
- Look for leaks at the Schrader Valves.
- Look for leaks on the compress from pin holes.
- Look for any leaks at the evaporator drains.
Why did my car AC stop blowing air?
Some frequently common issues that are why the cold air isn’t blowing in your car could be one of the following:
- A clogged air intake is keeping air from getting inside the car.
- A clogged air intake is keeping the air from circulating.
- The ventilation system has a blown fuse.
- Electrical issues.
- Blower motor is damaged or frozen.
- Blower resistor is malfunctioning.
- A broken hose within the ventilation system.
You may be able to clear and clean out any clogs an get your auto ac blowing cold again. If that doesn’t help and you aren’t sure how to check fuses, schedule an appointment with your auto ac repair shop. In the meantime, quit using the system, that can cause more problems.
Why is my car air conditioner not blowing cold air?
Three reasons that can keep an auto ac from blowing cold: :
#1 The AC Refrigerant Needs Charging
When an auto ac isn’t getting cold, a common problem is the refrigerant is low. Today, because of EPA laws and regulations, you’ll need to have an auto ac repair shop charge the system.
#2 The Refrigerant Leaks
This could be fixed temporarily by recharging the system, but if there is a leak, that expensive refrigerant is going to leak out again. Take your car in for ac auto repair and they will use a dye kit as we mentioned earlier to check for leaks. The technician will fix the leaks and recharge the system.
#3 The Fan Motor Failed
If the fan motor is frozen or simply quit working, this will keep your auto ac from blowing cold air. This unit is typically found at the front of the car motor. If you have the ac unit on and the motor isn’t kicking in, you’ll need to take your car to a professional ac auto repair shop.
What are the symptoms of a bad AC compressor?
If you have noticed any of the following, your car’s ac is about to quit working altogether. In fact, it probably hasn’t been working as well as it should, right? Notice any of these things, schedule your auto ac repair appointment today:
Odd Noises and Sounds
When you flip the ac on, do you hear odd noises and sounds? That is probably the compressor grinding or whining because the bearings inside it are going bad. Turn the system off and back on and if you still hear those odd noises or sounds, get your auto ac repair appointment scheduled.
Hot Air Blowing
What does it mean when your car AC blows hot air? This is usually the compressor has quit working or it could be low of refrigerant. In either case, turn it off and leave it off until you get your auto ac repair technician check it out.
If there is fluid leaking other than water when you have you auto air conditioning on, it maybe the refrigerant leaking from compressor and the internal bearings. If that is the problem and you keep running the ac, the bearing are going to go bad and burn the compressor up.
Auto ac has a clutch, just like a manual shift car does, and that clutch is what connects to ac to the engine for power. If the clutch goes out , the compressor isn’t able to pull from that power and cool your car.
Like you have your oil changed and tires rotated on routine schedule, you should the air conditioning system checked once a year before the hot weather arrives. Getting the problems early on will keep you cool when that humidity and temps get the 80s and higher. Call 469-904-0734 today for your car ac repair in Dallas, TX.