car ac sometimes works sometimes it doesn't

Up to 8 cash back There are several possibilities here ranging from a damaged AC actuator loose electrical connections or a damaged AC control module. There is likely a problem with your condenser.

4 Reasons The Ac Only Works When Driving And Stops While Parked Obd Advisor

Your Car is Leaking Refrigerant.

. Does your AC work fine when you first start the car but then fail after a while especially on hotter days. There is a leak or leaks somewhere in the system. Feel the air coming out of the air conditioner and assess how warm cool or cold it is.

There are lots of things that can cause random vehicle AC operation. In older vehicles pre-1994 refrigerant will run out on its own. No your car didnt get confused and turned on heat by accident.

For the AC system to work properly it needs this pressure and a specific amount of. Locally Owned Operated Since 1972. You Have an Electrical Problem.

Other times it wont work after re-starting the car even though it worked fine. Your one-stop-shop for total car care. There are several things that can cause electrical problems for your cars air conditioning.

Because refrigerant circulates throughout the system a leak may be at any point along the way. The most common places where leaks are found are at AC unit hose connections. Since there are multiple possibilities that could be causing the AC to not work all the time you might want to have a professional mechanic complete an AC not working inspection to determine what.

This is the clutch and it should be disengaged when your car is running the heat mode. Here are the 5 main reasons many auto air conditioning systems fail. Other times it doesnt work and no cold air is produced.

A refrigerant leak can occur at any point in the air conditioning process and so its sometimes difficult to pinpoint the exact location of the leak. If your vehicle still uses the R-12 Freon regulations. This can happen while driving the car the AC may be working fine then shut off then start again.

A condenser has coils and a fan to push the air through the coils and thus cool the refrigerant. Some of these culprits are straightforward to repair while others require taking the car to an auto mechanic or an auto repair service such as the Lexus dealer service department. Sometimes it will work normally blowing cold air.

While there are a variety of reasons your cars air conditioning might not be operating at top performance the most common are a refrigerant leak an electrical climate control issue or a problem with the air conditioning compressor. It helps the AC stay on if I hold down the blow internally button Ie not the use outside air button. Examples might be wire to the compressor clutch or flaps not operating in the dash unit.

Vehicle Drop Offs Welcome. Depending on the AC system type you might or might not have an orifice valve inside one of the AC tubes - this will make one part of the tube hot and the other part freezing cold. The air conditioner wont run properly unless your engine is running.

Step 1 Turn the air conditioning on while the car is running. Get in the car and turn it to AC and go back to the. If your car has a Max AC setting select that.

Your cars air conditioning uses. Today my cars AC fan wouldnt come on at any speed setting only to come on later in the day what could it be. 9 Causes of Car AC is Not Blowing Cold Air.

Having an issue with the AC on my 99 SHO. If your car AC is not blowing cold air or just simply not working then you might be dealing with one or more of the problems listed below. According to my mechanic it is the AC Expansion Valve.

Because it is behind the dash somewhere that has to be taken apart so it will cost more than 500 to fix and the part is only around 40 the last time I checked. AC Refrigerant is Leaking. The fan always works.

Well I dont think its the fuse otherwise the fan wouldnt come on at all its probably not the blower motor resistor either. - 1995 - 2004 Toyota Tacoma. Also Sometimes the heater stops completely due to a bad blower motor resistor.

Start with the fan speed turned to its highest setting. Faulty wiring particularly at a multi connector where one of the pins is not fully secured. If your AC isnt working as well as it should there are a number of reasons that may be the cause.

If it turns on it will randomly turn on and off. Leaks within the compressor or hoses cause the majority of car air conditioner problems. I suspect its the blower motor let me tell you why.

If the air is warm to cool but not cold as it should be there may be an issue with air flow. The controls may have faulty switches. I guess I just wont be going anywhere during the summer.

But if I click the AC button sometimes it works sometimes it doesnt. This refrigerant system is of high pressure and it can reach 15 bars when the car is running. When you notice no cold air from the vent outlets go and check the AC tubing under the hood.

Start the vehicle and turn on the air conditioner. In simpler terms it helps turn the air cool. Leaking coolant is one of the most common AC issues.

It indicates that your car blower motor resistor has an issue. Pop the hood of your car and locate the compressor. You should notice the disk on the pulley side of your compressor is not moving at all.

Sometimes it toggles in a split second sometimes after 15 minutes. These can include failed switches a blown fuse a problem with the control module or something else. The car AC sometimes works sometimes it doesnt.

When there is a refrigerant. The most common symptom of a blower motor resistor is that when you start the heater fan it only runs at the highest speed setting 4 or 5 and doesnt work at lower speeds. However it should be a thing of the past after knowing what causes this problem and how to fix it.

Turn your cars HVAC setting to heat to blow hot air. Use the key to start the car and turn the air conditioner on high. My house fan kinda behaves like that when the blower motor is about to die.

Your AC system is filled with an ac refrigerant making sure the whole system is working correctly. The important thing here is to take steps as soon as you. Each of these can cause the ac to blow lukewarm or hot instead of cold air.

The refrigerant is what keeps the cabin cool. There is a good chance your AC compressor clutch. At least some of them must be freezing cold.

A condensers job in a vehicle is to cool the warm refrigerant that was used to make the air cold in the evaporator. Method 1Method 1 of 3Identifying the Issue. It may be that the clutch on the AC compressor is faulty sometimes it doesnt engage or it could be a wire is loose or a loose connector plug next time it blows hot air when it should be cold lift the hood make sure that the clutch on the AC is engaged hope this helpscheers.

When your air conditioning isnt cooling as much it could be a sign of a failing condenser. Sign Up For Meineke Rewards to Earn Points Save. The best setting for diagnosis is fresh air not recirculated with the air blowing out of the center vents in the dash and the AC turned on.

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