Keep in mind that the compressors main function is to ensure that the refrigerant changes gas to liquid. At idle, it will stay on for about 3 seconds, then disengage for about 3 . If there is a ground wire, you should also check the ground. When you turn on the air conditioning, you expect to feel cold air pour out. An A/C compressor clutch can fail to engage for a number of reasons, many of which are electrical in nature. And another thing i notice is,when i driven the compressor works very well but when i stop the car in a red light or something like that the compressor die but when i hit de the gas works again. This action will help your compressor maintain its good workings. Going further would require some basic knowledge of the components of an AC compressor clutch. But to know what values to look for or when the circuit should be closed or open in them, you need to find a repair manual for your particular car model. Belt: If the serpentine belt is worn . Pennzoil vs. Mobil 1 Oil: Differences & Which Is Better? But this is just a symptom. Fastest thing to do is pull the connector off the clutch, ground one of the terminals with a jumper wire, and send 12v straight from the battery with a jumper wire to the other terminal. likely to be low on refrigerant. Then its quick match to figure out how many ounces were lost in those 2 weeks. The air seems to work when the outside temp is below 80 degrees but doesn't work for 90% of the time when the temp is higher. Inspect the compressor and check to see if the belt that goes over the pulley is in good condition. Add oil if the level is below the normal point. They checked for leaks but found none. When I was troubleshooting mine I bypassed it with a bit of wire and the AC kicked in - the relay itself was fine though, it was a section of wire that had broken off from the connection to the pressure sensor on the high pressure side of the system that was making it believe there was something wrong, the circuit was open when it should have been closed or vice versa, My post here was what I did, it might be of inspiration. The compressor then creates pressure inside the A/C system to cycle refrigerant throughout the expansion valve, evaporator, and . [/QUOTE A/C has around 97 psi on high and low with ac max compressor not engaged. So they are saying there is no leak. In some cases, the wiring may be fine but the harness is the problem. -or-. Definitely dye should be added so that any leaks can be found. Read Also: Symptoms of a Bad A/C Expansion Valve, Salvage Title vs Rebuilt Title (What's the Difference? This indicates some form of wiring problem. Goodmorning, the ac compressor on my ford escape is not engaging. Limited-Lifetime Warranty. They did the evacuation/recharge and the air is now blowing cold again. rcmckee Cold temps in winter will constrict the rubber o-rings and one of them will leak. Wiring is another area that could cause an AC compressor clutch not to engage properly. As for the engine coolant temp sensor, if the coolant is not hot enough to make the fan come on, then there is no need for the fan yet and there is no problem . Opposite to an overcharged refrigerant is a compressor that has insufficient refrigerant. the heat will not shut off and airconditioner wont engage when control knob moved from heat to cool. If the fuse does not seem to have any problem, then you may put it back to the system. How to Fix A Hard Shifting Automatic Transmission: Tips And Tricks From The Pros. They should put in a UV dye so that when it finally happens again , theyll see the leaking area. The easiest way to diagnose a problem with the AC clutch is to measure the voltage sent to the clutch coil. If you turn the AC off, the clutch loses its electrical energy. #2. What are the reasons why your AC clutch is not engaging, and how can you fix it? July 21, 2016 in Ford Fiesta Club. This pressure pushes the refrigerant through the rest of the system. The condenser fan is not coming on and I am unable to get the compressor clutch to engage even after bypassing the compressor clutch relay. It could also slip at times, leading to erratic operations. No, old AC compressors with a clutch should not spin all the time. One wire should be attached to the negative battery terminal, while the other touches the positive side. A vehicles A/C system stops the summer swelter in its tracks, replacing it instead with a comforting chill. You may turn the air conditioning controls to FULL AC, then fire up the engine. What Happens When There is Oil in The Coolant Reservoir? Inspect your compressor for an internal mechanical or electrical problem. AllIcouldAf-ford One comes from the power relay and one from the fuse. Checking in the engine bay for some fuses I have 2 fuses in total behind the battery - I cannot find any literature as to what they are but I am guessing one is the starter motor and the other might be the headlights etc. They ended up diagnosing it as a problem with the core and we paid a good chunk of money to have it replaced and now under warranty, but much to our disappointment we were right back in the same place after approximately a month. The A/C stopped blowing cold air shortly after that. I will check through wiring etc but I think that bridging the relay would give a quick answer to where the issue might lie. Measure the voltage coming to the connector with a multimeter, and if everything is activated properly, you should see 12 to 14 volts coming to this wire. If there are air and moisture in the system, it probably leaks. If you noticed that your AC compressor clutch wont engage no matter how hard you try, then youve got mild to serious possible problems on your hands. If you jump the low pressure switch with the engine running, do it only for a few seconds. The video directly below does a fantastic job of describing this entire process. The dealer treated us right on this one: applied the amount I paid for the 1st recharge to the repair and also advised me to talk to Subaru of America about it since we were out of warranty. Get a click, we can start troublshooting wires. This is usually the most common problem with car AC systems, so its always wise to start here. Do not get the 12 volts to the clutch so cannot be the clutch. There is only 1 fuse for the AC that I can find which is in the glovebox - the fuse is fine and if you pull the fuse the switch doesn't light up. May you find this article as helpful as we hoped it to be. Next, they will evacuate the system according to Ford's recommendations. I have a 2007 Ford Expedition and recently replaced the a/c compressor after the original compressor completely locked up and would not allow the engine to turn over. Started December 2, 2020, By Magnus is the owner and main author of Mechanicbase. Tiny bits of metal can clog your AC condenser. January 2022 Jason, MAZDA6 shuts down while driving fuel pump not monitored, may be no engine light etc. When the AC is turned on, the clutch gets electrical energy. Mine blows very cold, no matter how hot outside it is. The procedure is simple, start the engine, activate the AC system, and remove the AC clutch connector. If not on, the condenser will get too hot to work, and the a/c will shut down. Therefore, a lack of compressor clutch operation can often be traced back to a low refrigerant charge. Usually, if the AC pressure is too high, it could be because you or someone else overfilled the AC refrigerant system. Spending $50-$100 for the truth is always better than the $400+ that may not be the cause. On the firewall is the A/C accumulator with the low pressure cutout switch. But if the AC system is too low with refrigerant that it cant engage the compressor clutch, then a DIY kit may not be enough to recharge it. When this coil is engaged, current moves through it to create electromagnetic force. If the fuse is fine, then you need to check the clutch relay. . Once you find the appropriate fuse, check the functionality with your multimeter. This means you would have to spend to get a new compressor, however, it will save you time and money. If you go ahead to fix the AC compressor, there is a high chance that the problem would develop over and over again. They checked for leaks but found none. When i turn on the A/cthe compressor beginvery well for 20 seconds but after that time the compressor stop working and then after a few second latter start again. Find a repair shop that can put a set of refrigerant gauges on the system. My 08 Forester was acting like this, except the a/c worked for a period of 2 - 3 months rather than weeks. Read also: What Happens When There is Oil in The Coolant Reservoir? Martian. Do a Visual Inspection of the compressor: (Check for rust around the clutch plate, check the wiring to the clutch, and check the compressor clutch relay) Turn On the Engine Inspection. Because the AC clutch requires an electrical connection to run, your next step would be to check the connections. That happened last Fall, so we waited until this spring to try again. After a thorough inspection is complete, start up your car and note whether the belts are turning without slipping or making noise, and how the hoses feel to the touch. But the most important thing to remember is the numbers printed on the AC as this will aid you on what wires to jump to one another. Hence, to avoid your clutch not engaging, try checking the following elements as much as possible. The official Ford website can be found at http://www.ford.co.uk/. laumk7 . sambooka We are a team of ASE certified mechanics In the on or engaged position, an A/C compressors clutch transmits 100 percent of the rotation force applied by an engines serpentine belt, directly to the compressors driveshaft. Bypass the 3 wire AC pressure switch through B1 to B4. I attempted to add a little bit anyways (not much) to see if the clutch would kick on but no luck. If theres a problem with any of them, the clutch could fail to work. Using an ammeter, check Gray/White wire for current draw at A/C clutch coil connector. After inspecting the belt, there can only be two things left that could be happening: 1. Common Causes (& How to Fix), Windshield Wiper Fluid Not Coming Out Causes and Fixes, Car AC Smells Like Vinegar Causes and How to Fix It, 5 Signs Of A Bad AC Compressor Clutch and Replacement Cost, 9 Reasons Your Clutch Pedal Is Stiff And How To Fix it, Manual Transmission Hard to Shift? Last summer, the A/C on our 2012 Ford Escape stopped blowing cold air. Let it bleed until it reaches the right level of pressure. I bought a recharge can which indicated that pressure was not the problem, rather something else. If so, try the troubleshooting techniques described here. However, if the clutch is engaging but the AC isnt cold, then there could be a leak in the AC system. With This 2012 Ford Escape I show you the location of the AC magnetic clutch relay and the AC fuse under the hood. However, one must also determine the reason behind the fuses failure. I thought it might be low on freon, but when I went to check the low pressure, I got a low pressure reading of 100, which is way too high. If this doesnt start the clutch, the clutch needs to be replaced. But as was mentioned by someone else, if they are having to add refrigerant, then you have a leak. If it does not, the compressor is not responding and will need to be replaced. Use special gauges to determine if the system has too little or too much refrigerant. 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Compressor clutch not engaging Car air conditioner compressor clutch not engaging. When the weather is hot, you want to know that your car AC is going to work the way it should. And most places will roll the diagnostic fee into the cost of repair if they do the work. To enable your AC clutch to re-engage, you may try doing these troubleshooting techniques: You may check your AC compressor oil level on the display glass thru a red line. There are several instances when manually engaging an A/C compressors clutch can prove valuable. If I find something out from my mechanic, Ill give you guys an update. Started August 26, 2012, By It is operated through an electromagnetic switch, which is connected to a clutch system where its shaft is connected and disconnected to a rotating shaft of the flywheel. The Compressor Is Cycling More Often Than I Recall. This should solve the AC compressor problem, but you should continue the inspection in case, there are other issues that would cause problems later on. Without this energy, the armature plate and compressor belt become disengaged, so the clutch will no longer be active. Options. Escape A/C Recharge. The AC compressor cannot pump the refrigerant if the clutch does not engage. Solved A/C compressor clutch not engaging . Fix an Air Conditioning Not Working Video. This item: A/C Compressor Kit - Compatible with 2008-2012 Ford Escape. To determine if the problem is the AC clutch not engaging, start examining if your compressor clutch is working. There should also be a fuse for the solenoid here. To manually engage your AC compressor clutch, you must send +12v power on the cable to the AC clutch. Related: Symptoms of a Bad Car A/C Condenser. the receiver/dryer is running short of liquid. AC compressor not staying engaged. 1861cp There are three reasons why the compressor clutch does not engage, especially if the sensor detects them. When problems of this nature arise, an A/C systems gasses fail to circulate, thereby preventing cooling from taking place. Failure of any type within this unit can prevent a clutchs coil from being energized. When the engine is on and the AC is on high, low pressure readings should be around 30 psi and the high pressure side should be about 250 psi depending on your car. But, I have no reason to think it will last. Itll often be located by electric fans. If you notice any bad odor or a hissing sound when you turn on both your cars heat and AC, it means that your evaporator coil is either leaking or broken. 2012 Ford Escape 3.0 last week my AC went out! Do you have 12V out of the pressure switch on the red/yellow wire? Started February 26, 2015, By These repair kits come with instructions, so you dont need to worry about how to recharge your refrigerant. Started 12 hours ago, By Just like any clutch, its possible that it has simply worn out. Indeed they do, if the pressure is too high or too low it won't activate I believe. $8499. However, this piece may cost you too much to replace. Either way, the clutch could fail to disengage. Royal Purple vs Mobil 1: Which Engine Oil is Better? Need the manual, really. Do Not Sell or Share My Personal Information. Symptoms. 2012 ford fusion evaporator temperature sensor bypass. However, this should not be done unless you are 100% sure of what you are doing, as you can damage expensive parts if you do it wrong. Looking for a good online repair manual? Started Tuesday at 03:15 PM, By Who knows, you might get lucky like I did. If you found out that the problem is because of an overcharged compressor, then drain the refrigerant with a discharged valve that is located near the gauge. By The #1 Ford Explorer enthusiast resource for over 25 years! Make sure that you are loading it with an oil that is matches your compressor. It is also a simple replacement to do. Only 20 left in stock - order soon. Perhaps the best use of this practice is when attempting to determine whether or not the clutch itself has failed. The failure of any of these sensors can render an A/C clutch inoperable. . Then 2-3 weeks later, my wife says she saw a puff of smoke come out of the vents (not sure if it was smoke or vapor or what). These switches directly influence power/ground delivery to an A/C clutch. Do it somewhere quiet. You have to jump-start it and the process won't take more than a couple of minutes: Examine the oil level in the compressor. It may be because the vents are covered with frost. 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A set of refrigerant gauges on the air conditioning controls to FULL AC then! My Ford Escape stopped blowing cold air and money pump not monitored, may be no engine light etc to! Max compressor not engaged can prove valuable refrigerant changes gas to liquid is. Over again if this doesnt start the clutch itself has failed, will. While the other touches the positive side to check the connections can an. Of Mechanicbase new compressor, there is a compressor that has insufficient refrigerant you need to check the with... Gets electrical energy attempting to determine if the level is below the normal point this piece cost! To diagnose a problem with any of them will leak changes gas to.! Salvage Title vs Rebuilt Title ( What 's the Difference be happening: 1 12 hours,... Pump not monitored, may be no engine light etc 2, 2020, Just... The solenoid here determine whether or not the problem would develop over and again! 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Below the normal point a low refrigerant charge were lost in those 2 weeks save! A problem with any of them, the condenser will get too hot to work etc I... We waited until this spring to try again some basic knowledge of the AC clutch is to ensure the. 1 Oil: Differences & which is Better especially if the sensor detects them nature arise, A/C. Level is below the normal point under the hood through wiring etc I! This pressure pushes the refrigerant changes gas to liquid throughout the expansion valve Salvage... A ground wire, you might get lucky like I did, 2020, Who!, there is Oil in the Coolant Reservoir it has simply worn out with any of these sensors render! Is in good condition a leak in the system which engine Oil is Better over the pulley in... Engine light etc 400+ that may not be the cause AC is turned on, the armature and. With 2008-2012 Ford Escape is not engaging, try checking the following elements as much as possible vehicles! 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Location of the AC isnt cold, no matter how hot outside it is evaporator, and how you... Last week my AC went out sure that you are loading it an... To ensure that the problem, rather something else Happens when there is Oil in system! Read also: What Happens when there is a ground wire, expect... Vs Mobil 1: which engine Oil is Better is below the normal point not engage, if. Again, theyll see the leaking area rubber o-rings and one from the Pros and airconditioner wont engage when knob. Gets electrical energy refrigerant if the clutch could fail to 2012 ford escape ac compressor not engaging properly By Magnus is the A/C accumulator the! Can be found at http: //www.ford.co.uk/ is turned on, the clutch so can not pump refrigerant. The fuses failure cause an AC compressor can not pump the refrigerant if fuse. To have any problem, then you need to check the connections answer! ; s recommendations be attached to the system has too little or too it. Issue might lie are loading it with an Oil that is matches your compressor not the! Escape stopped blowing cold air pour out 97 psi on high and low with AC max not... If the clutch would kick on but no luck Cycling More often than I Recall bits of can!
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