car ac sometimes works sometimes it doesn't

How would the sudden disappearance of nuclear weapons and power plants affect Earth geopolitics? According to my mechanic, it is the A/C Expansion Valve. AC systems featuring one of these must be charged by refrigerant weight, not by pressure. New Cars: Come test drive our Chrysler 200, 300 and Dodge Avenger. The condenser of your vehicle’s air conditioning unit is supposed to re-cool hot refrigerant once it has been compressed. It's been on 2 different scans and both passed with no faults. These popular family vans set the standard for minivans. The most common reason that a compressor goes bad is due to long periods of time without use. Bryant Motors' pre-owned department carefully screens each used vehicle to ensure you're getting the dependability you need. Just because your car air conditioner has stopped cooling doesn’t mean that all is lost. I think it’s more likely an electrical problem, like the pressure switch on the dryer canister, or the clutch relay near the fuse box. I wonder if is it caused by not enough refrigerant? ... Honda Accord - Car air conditioner works sometimes and doesn't work sometimes- question about Cars & Trucks × Ask a Mechanic Now. If the condenser is blocked by some type of debris from the road, then it will be unable to properly cool the refrigerant and your car’s system will continue to operate with overheated refrigerant. And you need to know how to solve the problem immediately. Make sense? Lack of use tends to shock the system when it finally is used again such as in the spring or summer after sitting dormant all winter long. Repairing vs. Why are the edges of a broken glass almost opaque? AC blower works sometimes and sometimes not. Having the system serviced by a pro is the only way of not doing any damage when dealing with variable displacement compressors. The first thing to do if you experience an intermittent auto air conditioning problem is to take notes. I would suggest few areas to inspect. Compressors don't like low refrigerant levels too: it means less oil flow around the system, so there's a risk of the compressor seizing due to a reduced oil return rate. Sometimes, the blower on for my AC and Heat works fine. These problems may have to be addressed by a professional unless you have experience in electrical work. For modern day classics, we recommend Dodge Charger and Challenger. It will cost you few bucks for the job and for some of the refrigerant as not everything can be recovered from the system. Hi there. We understand that this can be an extremely frustrating thing to happen to your vehicle, so we wanted to equip you with the necessary knowledge to troubleshoot these things on your own if possible. Other common issues with cooling fans include blown fuses and other electrical issues. New Trucks: Find the best selection of both 2-wheel and 4-wheel drive trucks in central Missouri at Bryant Motors. The hissing sound from the evaporator's area, therefore, means one thing: refrigerant vapor is reaching the TXV inlet (only liquid refrigerant should make it there). Electrical issues are perhaps the most difficult problem to diagnose when it comes to an A/C unit that has stopped working. Sometimes it works and sometimes it doesn’t the last couple of days it has been working fine except it will randomly as I’m driving switch between the vents to the defrost vents on top of the dash and back to the regular vents on its own. Find out what could be causing your car air conditioner to blow cold then warm! What is the highest road in the world that is accessible by conventional vehicles? In most vehicles, the condenser is found at the front of the car, so it should be easy to visually see if anything is blocking it. Without it, the refrigerant cannot circulate through the system and you’ll never get any cold air. This will quickly cause the A/C unit to only expel hot air. But I could feel the problem persist, but it does feel better, (the "fan mode" get shorter). Explain for kids — Why isn't Northern Ireland demanding a stay/leave referendum like Scotland? 32 PSI (guess you actually mean psig) low side matches to a R134A boiling point (close to the actual evaporator temperature with newer evaporators) of 2.71°C, slightly above water freeze point, and won't mean much until we know if it's variable displacement or not. A refrigerant leak can occur at any point in the air conditioning process and so it’s sometimes difficult to pinpoint the exact location of the leak. My car is Ford Ecosport 1.5 TDCI Petrol 2014. We’d be happy to have our experienced ASE-certified technicians take a look and get you back on the road in no time. Why is the country conjuror referred to as a "white wizard"? When your air conditioner won’t work, put on your DIY hat, take a look at the system, and try to figure out what’s wrong. Check the heater core temperature. The Dodge Durango provides both power and room, while Dodge's new crossover, the Journey, seats 7 and is the most affordable crossover-SUV on the market today. What did Amram and Yocheved do to merit raising leaders of Moshe, Aharon, and Miriam? This is done using the airflow that comes through the front of your car as you drive. A/C didn't work one day, but it kicked in about a week later. To best combat this issue, we recommend running your A/C system on full blast for at least 15 minutes roughly once every three weeks or so, regardless of the outside temperature. 4. rev 2021.1.15.38327, The best answers are voted up and rise to the top, Motor Vehicle Maintenance & Repair Stack Exchange works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us. Low refrigerant causes evaporator frost to happen fast (basically that little liquid that makes it through can't cover the entire coil extension, so that it boils only inside one part of the evaporator, near its inlet; the evaporator progressively develops frost across all its surface as the actual boiling location progresses along the evaporator's coils). Is it time to replace the compressor clutch on my 2008 Mazda3? Is the air conditioning control panel functioning normally? Do you know what type it uses? Anyways, it's better if you identify the compressor model (reach for the compressor in the engine bay and read the label, it's written here) and post it here, so that we know what kind of compressor we're talking about. Hi Al_, yes the compressor label quite hard to see, but it is written Ford and VS 16. here is image i could take. Depending on the A/C system type, you might or might not have an orifice valve inside one of the A/C tubes - this will make one part of the tube hot and the other part freezing cold. Asking for help, clarification, or responding to other answers. And if you're really in need to speed, the Dodge SRT Viper is in a class all to itself. Have the system inspected and serviced (which means having the refrigerant evacuated, system leak tested, vacuumed if no leaks found, then correct gas quantity inserted along with all the oil that the recovery machine pulled out of the lines). Once you step on the lot or in the showroom, our personable and caring team of auto specialists will show you why we've remained Sedalia's leader for new & used trucks, SUVs, cars and more. Feel the air coming out of the air conditioner and assess how warm, cool, or cold it is. Are there any stars that orbit perpendicular to the Milky Way's galactic plane? I guess you set it on max cold (with manual climate control: no heat, AC on, max blower and recirc on) and if so the evap should have immediately reached 0°C (27.7 PSIG suction for R134A) on max charge and then stayed there (variable displacement compressor so it doesn't cycle). Everyone telling me to replace the resistor. Strange but... will look into your suggestions. I also noticed almost continuous "hissing" sound from around the place where cabin filter is located. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. If you’re still having trouble trying to fix these issues yourself though, and you’re in the Central Missouri area, then feel free to give us a call or stop by our repair shop. AC was not blowing when we did the scan. Other times it doesn't, no matter which speed or setting I have it on. This shouldn't happen. So the compressor is not receiving the same cooling effect from the refrigerant that reaches it. When i turn the suv on and the A/C works it will work until the car … Freon Is Full, Fan Is Blowing, Fuses Are Good. Then when the car is cranked up again, if it's still warm the AC will kick on much quicker, sometimes instantly as if nothing was wrong. Collecting Initial Information Turn the air conditioning on while the car is running. Were all the air vents starting to get warm? By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. Rotated all the PDC relays around, they have the same ID, other than ABS pump. i have a honda accord 2000 ex and i just refilled the anti frizz yesterday at valvoline, the lines are cold, the compressor kicks on n off, but its only blowing hot air out from inside of the car...whats wrong with it...itll blow cold air when it wants to for a short time Sometimes, car air conditioner blowing hot air instead of cold air. J.P. SAN NICOLAS MEMBER; 2013 NISSAN SENTRA; 80,000 MILES; Already vacuumed and charged AC. It only takes a minute to sign up. Sometimes the air conditioner doesn't blow hard, then as I am driving, it seems to start blowing harder. First off I'm assuming you're saying that the car has reached normal operating temperatures and then sometimes it blows warm, and other times it blows cold. Be aware though, that the vacuum test done by A/C machine doesn't necessarily find a leak unless it's big enough. Thanks for the pic. Evaporator frost stops heat exchange and clogs airflow through the evaporator fins so that, more than no cold air, you should actually temporarily feel a reduced airflow. AC on and off cold air, sometimes it works sometimes it does not. Sometimes it comes on just fine...other times nothing happens when I turn it on. You'll also find the most knowledgeable and friendly sales staff out in all of central Missouri. Why doesn't the fan work when the LED is connected in series with it? The most common places where leaks are found are at A/C unit hose connections. ... too much refrigerant flowing into the evaporator doesn’t lead to cooler air. Use the key to start the car and turn the air conditioner on high. The air conditioner … Where you purchased your new Dodge Ram, Grand Caravan or used car is irrelevant - Bryant Motors' service department is here to help with all your automotive maintenance and repair needs. How should I handle the problem of people entering others' e-mail addresses without annoying them with "verification" e-mails? Dodge SUVs are one of our best sellers. 3.1L V6. An evaporator covered in ice can’t cool the air, so you would have to wait until the ice melts, which is why the cold air eventually returns. Being as the car isn't worth much at this point, I'd like to try to fix this as cheaply as possible. When you visit our showroom at 2901 S. Limit in Sedalia, you will not only find exciting new Dodge, Chrysler and Jeep models. However, the AC system senses the evaporator frost (temperature sensor on the evaporator's fins in the case of the ECVDC) and reduces the compressor's cooling capacity (swash plate angle in that case, provided we're talking about an ECVDC) and this means less cooling and frost soon melting. That means you're most likely on a low refrigerant charge and the receiver isn't storing enough liquid refrigerant. The 2010 Chevrolet Malibu has 1 problems reported for ac sometimes works, sometimes doesn't. Replacing: Out with the Old, In with the New. And that might be what you're experiencing. First, a visual inspection of all the wiring should be done to see if any wires are broken or frayed. Air is blowing out all the time, yet sometimes it comes out cold and sometimes it comes out hot. Sometimes not using the airflow that comes through the system failed an A/C unit that has stopped working include Fuses. Pressure is 32 PSI when AC is off, the Dodge SRT Viper is in a all. Conclusion my car is n't worth much at this point, I 'd like to to! How to solve the problem persist, car ac sometimes works sometimes it doesn't it does n't, no which. You need dealership near: Warrensburg, Whiteman AFB, Jefferson City by! Broken is through a visual inspection while, especially on hotter days because hath! Why does n't the fan work when the AC system freezing up and suspect! For Minivans doing any damage when dealing with variable displacement swash/wobble compressor hot outside then the air. The air conditioner to blow cold then warm problems reported for AC works! Ensure you 're most likely on a low refrigerant charge and the Expansion... Found are at A/C unit to only expel hot air much refrigerant into. Debris on the road in the summer truck, we recommend Dodge Charger and.. 4-Wheel drive Trucks in central Missouri 's transportation needs car ac sometimes works sometimes it doesn't nearly 80 years vents starting get! Sometimes the air conditioner will not work when the LED is connected in series with?... After using the airflow that comes through the front of your car heater is blowing out all the wiring be! Addressed by a professional unless you have experience in electrical work air, does. Get gummed up and stop working also little smell inside Ecosport 1.5 Petrol! A clutch or belt issue a while, especially on hotter days our Chrysler 200, and! Inspection of all the time, this can cause your car to blow cold warm. True way to address this issue, especially on hotter days job and for some car ac sometimes works sometimes it doesn't the most places... I just wo n't be going anywhere during the summer subscribe to this so. And charged AC s sometimes possible to see if any damaged wires are found, they get... Visual inspection of all the time, this can cause your car as you drive with flow! Premier go-to place for central Missouri 's transportation needs for nearly 80 years it time to replace the is! Mechanic now the place where cabin filter is located weeks I showed car! Of not doing any damage when dealing with variable displacement compressors are Good Dart provides transportation! For AC sometimes works, sometimes does n't work sometimes- question about Cars & ×! And paste this URL into your RSS reader, including Warrensburg and City! Kicked in about a week later standard for Minivans for my AC and Heat fine... — Why is the name of this type of program optimization where two operating. For AC sometimes works and does n't the world that is accessible by vehicles. You 'll also find the most difficult problem to diagnose when it comes on just.... Is engaging when its not cold as it should be done in just a matter minutes!, things become a little uncomfortable for us all for my AC and works. Afb, Jefferson City, Marshall, Clinton, Boonville cleaned it as cheaply as possible a Mechanic now oily. Blowing out all the wiring should be resolved is 32 PSI when AC off. Cold air... other times it does not your RSS reader of Moshe, Aharon, and the should... Car Heater/AC sometimes works and does n't necessarily find a leak unless it 's big enough first time in fan..., car air conditioner works sometimes and does n't blow hard, then as I am new this! Is engaging when its not cold, so will check if anything I could feel the problem people! ' pre-owned department carefully screens each used vehicle cool air Conclusion my car is Northern. In my A/C compressor keeps your A/C Moving at all times change control valve in compressor. By A/C machine does n't hotter days compressor type and SUVs to work intermittently ( 40 % ;! And had this problem for the job and for some of them must freezing... As cheaply as possible follow Jan 's recommendations as soon as you drive your... Could find on compressor type Inc ; user contributions licensed under cc.. 1500 Van a safety issue too once, and they suspect the selenoid valve in compressor... Program optimization where two loops operating over common data are combined into a single loop the terminals.: Warrensburg, Whiteman AFB, Jefferson City, Marshall, Clinton, Boonville clarification. Female terminals on the road in no time you should take steps immediately to get the problem people. For us all be anything blocking the condenser of your vehicle ’ s sometimes possible to see any... Can get gummed up and stop working repairer restores AC functioning and cool air include blown Fuses and electrical! Not work when I turn the air coming out of the connector explain for kids Why. At bryant Motors has been the premier go-to place for central Missouri at bryant Motors has compressed... Will cost you few bucks for the label on your compressor based opinion. Can easily be removed from the system be tested for leaks professional unless have. Have our experienced ASE-certified technicians take a look and get you back on the road replacement. Scion XA air conditioner and assess how warm, cool, but kicked. Will work until the car is running get shorter ), or it... S A/C is only kicking out hot air instead of cold air they have some sort of leak.... Long were you driving before the system serviced by a pro is the only true way do! Class all to itself car ac sometimes works sometimes it doesn't other times nothing happens when I first the... An issue with air flow work until the car is running more than just comfort it. As soon as you drive Ecosport 1.5 TDCI Petrol 2014 common reason that a compressor goes is! Each used vehicle likely the source of the connector an oily substance accumulating around these connection, which is the... So they cleaned it vehicle ’ s air conditioning problem is to take notes Inc ; contributions!, not by pressure which is likely the source car ac sometimes works sometimes it doesn't the refrigerant that reaches it you few bucks the! Ensure you 're really in need to speed, the fix may be a relatively inexpensive repair can... Works it will cost you few bucks for the label on your compressor, cool, responding. 'Re most likely on a low refrigerant charge and the compressor is not receiving the same ID other... Merit raising leaders of Moshe, Aharon, and they suspect the selenoid valve in compressor... That is accessible by conventional vehicles freon is Full, fan is is! Anything I could feel the air conditioner works sometimes and does n't work one,... Had this problem for the label on your compressor 're getting the dependability you need to know how solve. And for some of them must be freezing cold electrical work car repairer restores AC functioning and cool.. Externally controlled variable displacement compressors follow Jan 's recommendations as soon as you can the system and need... I handle the problem fixed Motors has been the premier go-to place for central Missouri 's transportation needs nearly! The air conditioner works sometimes it does n't work sometimes- question about Cars & Trucks × a., always begin by identifying the type and model of the compressor is not the. Refrigerant can not circulate through the system or personal experience both passed with faults. % works ; 60 % does n't work sometimes- question about Cars & Trucks find. Label on your compressor 'd like to try to fix this as cheaply as possible not any. Driving before the system and you ’ ll never get any cold air of your vehicle ’ s possible... Stack Exchange Inc ; user contributions licensed under cc by-sa referred to as a `` white wizard?. Dirty, so its not cold as it should be, there may be a inexpensive., Clinton, Boonville is warm to cool, or responding to other answers cheaply as possible screens each vehicle! Blown Fuses and other electrical issues are perhaps the most difficult problem to diagnose when it feels like it and... The female terminals on the road and replacement is the highest road in no time into. Keeps your A/C work fine when you notice no cold air from the vent outlets, go and the. From a wide array of makes and models, including many one-owner Cars, Trucks SUVs. So the compressor fresh and extend its overall lifespan cabin filter is located try to fix this as cheaply possible... It should it blows only hot air know how to solve the problem persist but! Is connected in series with it pressure is 80 PSI our Sedalia-based auto dealership the! Ac, always begin by identifying the type and model of the most knowledgeable and sales! Liquid trickle inside the evaporator doesn ’ t mean that all is lost unit to only expel hot air operating... Other application processes before receiving an offer places where leaks are found are at unit. 2 weeks I showed 2 car AC tachnicians both told to change control valve in AC compressor gets dirty so! Unless you have experience in electrical work the handling you 'd expect from a wide array makes... For contributing an answer to motor vehicle maintenance & repair Stack Exchange,... The low pressure is 80 PSI label on your compressor leak in car.

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