If you dont get any voltage reading, then check the fuse. You may consider it as the heart of the AC and the refrigerant as the blood. Usually, if the AC pressure is too high, it could be because you or someone else overfilled the AC refrigerant system. $285.95. In other instances, an A/C clutch assemblys coil can fail in its entirety, thereby preventing clutch engagement. You may turn the air conditioning controls to FULL AC, then fire up the engine. We recently bought a 2012 Escape as well and have run into what sounds like the same problem. zain611 You should check for leaks from the condenser, receiver, and any areas where metal piping connections are made. Above that, it only blows out hot air. I checked the compressor and the clutch will engage for those first couple seconds and then stop completely. To perform this step, you would connect the wire to the clutch directly to the battery. . My 2011 Ford Escape has been in the auto repair shop 4 times without being able to pinpoint the problem. In some car models, you may also need ground. Modern automotive A/C systems rely upon the use of several switches to operate efficiently. Fixing or getting rid of the rust in the clutch plate wont help so you should avoid such fixes. They checked for leaks but found none. I think you want one of those at this point. Cold temps in winter will constrict the rubber o-rings and one of them will leak. srpocd25 Is the AC clutch supposed to spin all the time? Throughout the years Ive been lifting the hood and rolling under, Ive encountered just about every car trouble out there. . I appreciate the help and sorry for me english it's very rusty. 2012 Ford Escape 3.0 last week my AC went out! Is this normal? It could also slip at times, leading to erratic operations. However, if the clutch does not connect with the compressor, the compressor will not work and the air conditioning system will fail to cool the car. The sensors in your AC should be able to measure if the pressure is correct. To determine if the problem is with the fuse, the first thing to do is turning off the cars engine. Along the way, youll discover some of the best brands of vehicle repair products that you can count on in the future. We only use the commissions thereby generated to maintain the site. ANY good A/C shop will solve this riddle in short orderits all they do. Cold air started blowing again! This can come as the result of a shorted hot wire or faulty clutch assembly. See the FAQ in the AC section for the steps to adjust the clutch gap. Mechanic's Assistant: Have you checked the Freon level? This indicates some form of wiring problem. When a vehicles A/C system is commanded into operation, power is distributed to the A/C compressor clutchs magnetic coil. 8 Reasons Your A/C Is Not Blowing Cold Air, Causes of an A/C Compressor Clutch That Wont Engage, How to Manually Engage an A/C Compressor Clutch, Replacing the A/C Compressor Clutch vs A/C Compressor, Common Brake Problems in Cold Weather CarTreatments.com, Lug Nut Sizes (w/ Chart For All Car Manufacturers through 2021), Why is My Steering Wheel Off-Center? I am tempted to simply bypass the switch and see if I can get the AC clutch to engage correctly by putting 12v across it - there is no tell tell 'click' when you press the AC button. Read Also: Symptoms of a Bad A/C Expansion Valve, Salvage Title vs Rebuilt Title (What's the Difference? With This 2012 Ford Escape I show you the location of the AC magnetic clutch relay and the AC fuse under the hood. The video directly below does a fantastic job of describing this entire process. There are shops that specialize in A/C systems. By The following steps will assist you in manually engaging your A/C compressors clutch assembly using the jump method. If thats the case, jump to this article: Ford Escape AC Not Blowing Cold. Is the Fan behind the condenser working? The power going to the AC compressor relay is going to be fused, so check that fuse while youre at it as well. In the past, A/C clutch replacement was viewed as a favorable alternative to replacing an A/C compressor in its entirety. With this force, the coil is pulled toward the plate, which gives the pump rotor the power it needs to run the compressor. The last thing you want to deal with is a hot car cabin. But, first, youll need to locate the compressor relay. If you notice that the belt is slipping then you would have to adjust it. Step three is not that complicated but it is delicate. then recharge the system and add uv dye, let it run for awhile, then look for leaks, If none are found, check again in a few months. When the engine is on. Display as a link instead, If this situation occurs, you will need to empty the system to have all the air removed before it can be recharged. The two most vital parts of a cars AC system is the compressor and the clutch. Consequently, the vents may be giving off heat. Who doesnt love road trips? So, to know the exact operating pressure on the high-pressure side of your AC system, it is best to check the user manual. Its possible to have too little or too much refrigerant causing the problem. In other words, the system is low on refrigerant. I checked the relays which are good. 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. Previously the air didn't work when set at level 2 and 3 of the four levels. Your link has been automatically embedded. Something else is the problem. If there are two belts, theyll both be attached at the crank pulley. The AC compressor is getting a command to turn on but is no longer able to, which would indicate that it needs replacing. Use a wiring diagram to ensure you have the right wire. With a DIY repair kit, you can recharge the system to the right levels. 3. . It could be because of a blown fuse, a bad clutch coil, or an open on the wire to the clutch coil. Make sure that the clutch and the pulley is spinning simultaneously. With the air conditioner turned off, a vehicles A/C compressor pulley free spools. Started 19 hours ago, By If it is not working properly, consider replacing it with a new one. This is called diagnosing and fixing the problem. I bought a recharge can which indicated that pressure was not the problem, rather something else. If the pulley and the clutch are both spinning it shows that the clutch is engaged with the pulley correctly. The clutch is not getting a signal to turn on. The club is not part of Ford Motor Company (UK or Worldwide) nor affiliated with or endorsed by Ford Motor Company (UK or Worldwide) in any way. There are three reasons why the compressor clutch does not engage, especially if the sensor detects them. The clutch is not getting a signal to turn on. rcmckee The AC compressor clutch was intended not to engage so you will know if a problem has occurred in the system. During this operation, the compressor drive rotates with the engine of the vehicle. Slipping Belt- A slipping serpentine belt can cause the vehicle's AC compressor to turn slower than it . There is an AC relay in the relay box next to the battery. 85ltdcrownvic. 0 %. Ill also update when I get a resolution to the problem. Leakage is a serious problem that you should address as soon as possible. The clutch is not getting a signal to turn on. The material or media contained in these forums are submitted by the general public and is NOT endorsed by Ford or Ford Motor Company in any way. It is a 2010. When this takes place, cabin temperatures skyrocket, as discomfort takes hold. You can use DIY kits to recharge the system, however, you must do so correctly to prevent overfilling the system which could create problems. We were in and out of the shop getting the dye put in checking for leaks and would get it back for 2-3 weeks before the A/C would be intermittently cold. A blown fuse wouldn't cause the clutch to engage after filling it up with refrigerant so you can probably safely rule that out. If you notice rust on the clutch plate, it is an indicator that the compressor is old and would need to be replaced. If freon is low, it won't engage. If it does have power and you bypassed it then you need to verify power to the compressor. I attempted to add a little bit anyways (not much) to see if the clutch would kick on but no luck. 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. Enginge Shut Down Stop Safly Now This Messige Come Every 10 To 20 Minute. Thanks for that, yeah I just need to quickly test to see where the system might be having issues - not planning to run it longer than a few seconds really. Started 12 hours ago, By Dave May The most common reasons a Ford Escape ac isn't working are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor. 97 it's a, I have a 2007 h3 hummer base model. Keep in mind that the compressors main function is to ensure that the refrigerant changes gas to liquid. It may be because the vents are covered with frost. We are a team of ASE certified mechanics One wire should be attached to the negative battery terminal, while the other touches the positive side. Or they charge it, then cant find a leak? Perform these next steps with the engine turned off. Ask your Ford dealer. 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. However, modern car models use a variable AC compressor and these systems are meant to work all the time when the engine is running. With time, a compressors clutch assembly can begin to show its age. Most vehicles rely upon the use of a relay to control A/C clutch operation. My A/c Blows Warm Air No Matter What Setting It Is On. How to Fix A Hard Shifting Automatic Transmission: Tips And Tricks From The Pros. Pasted as rich text. In some cases, the wiring may be fine but the harness is the problem. 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. You can try disconnecting the low pressure switch and bridging the connector , run engine briefly with air con on and see if compressor engages. No problems since then (two years ago). The procedure is simple, start the engine, activate the AC system, and remove the AC clutch connector. However, this piece may cost you too much to replace. Do you have 12V out of the pressure switch on the red/yellow wire? Youll need a jump wire. With the clutch plate worn out, the clutch may not be able to engage. The only way to re-engage compressor is to turn the truck off, let it sit a few, then crank it back on and you get the same 15-30 secs of cold air, then back to warm. This helps the refrigerant to turn into a gas. The compressor then creates pressure inside the A/C system to cycle refrigerant throughout the expansion valve, evaporator, and . Do NOT jump the low pressure switch to operate the compressor non-stop so you can add refrigerant. When the AC is turned on, the clutch gets electrical energy. You may also notice a bad smell when you turn on both heat and AC. Ships from and sold by Parts Geek LLC. The official Ford website can be found at http://www.ford.co.uk/. If you begin to notice that the AC system is not blowing as cold as it used to, then that may be a sign that the switch has failed, or is beginning to fail. And this relay will not energise if the pressure switch signals are wrong. Your previous content has been restored. 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). If the clutch kicks on at first I doubt it is that. The exact cause of such issues also tends to vary slightly from one model of vehicle to the next. The leak could be from the compressor itself or anywhere else across the AC . If you have no power then it will not engage the compressor. If there isn't enough refrigerant, the clutch may not engage. might look to manually run the AC pump directly at the clutch end. JordyC123 Im Stephen and Ive been an auto mechanic for over a decade now. Condenser may be blocked. When the two are separated, pull the switch off the connection and attach the new switch. If the compressor clutch cycles on and off rapidly, then the system is most likely low. The 3rd Time Alright, When My Vehicle Is At Operating Temperature And I Turn On The Heat It Will Blow Heat Then Get Cool After About A Minute. green and/or greasy components . But if you see that the only one rotating is the pulley, then theres a problem with the system. This means the high and low side pressures when both engine and A/C have been off for a while. Failure of any type within this unit can prevent a clutchs coil from being energized. Purging and re-filling is the correct procedure, so it sounds like youve got a good shop. This is usually the most common problem with car AC systems, so its always wise to start here. An A/C compressors clutch assembly is provided power and ground through a wiring pigtail that departs from an engines main wiring harness in most cases. If you hear a thunk or clunk noise after turning the AC on, the compressor is engaging. 2. If your AC clutch is not engaging, it's important to find out why and take the necessary steps to fix it. However, the fuse could continue to blow because of a more serious electrical fault. How to check whether your AC clutch is working, Common reasons why the AC clutch doesnt engage, What you can do if your AC clutch wont engage. The AC compressor is getting a command to turn on but is no longer able to, which would indicate that it needs replacing. 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. Mondeo Mk5, Fiesta TDCI 1.6 MK6 - Glow Plugs gone after 2 years, 2010 Fiesta - Low speed / soft brake grinding, I have checked the fuse behind the glovebox - which is fine, When this fuse is pulled the AC button doesn't light, when you plug it back in it does light, I have checked the connector to the clutch on the AC compressor and its not getting 12v with the AC button pressed, Dashboard button issue (that lights but doesn't send 12v to the clutch). If you find yourself with a locked-up condenser, consider checking around the connection between the compressor and the condenser. Countless times Ive encountered good pressures, yet when I recover, the system had only 1/2 charge, Clearly, the thing to do is look for obvious leaks first . Aug 19, 2018. Previously the air didn't work when set at level 2 and 3 of the four levels. Check the wiring to the clutch for any issues. Prices may vary depending on your location. If you haven't bought one, don't. Charge the oil (unless the compressor cam precharged), press it to about 200 psig with preferably nitrogen and soap bubble check everything. 37 % of the time it's the. This saves additional load from being placed upon a vehicles engine and prevents excessive internal compressor wear. You could get a digital multimeter and check the voltage and then check the ground at the removed connector. Copyright 2023 AutoMobile Remedy, All Rights Reserved. From you description, it sounds as though the system isn't building enough pressure, and by relation enough heat to turn the cooling fans on. All Rights Reserved. Touch the positive terminal to see if the test light is working correctly. I would be curious about the system static pressures. A/C only blows cold air below 78 degrees or so. If the fuse is fine, then you need to check the clutch relay. Compressor not included. Components used in the Ford Escape AC system Cylinder head temperature sensor Engine coolant temperature sensor Evaporator temperature sensor Low pressure AC cycling switch Dual function high pressure switch These include your Fuse, Coolant or Refrigerant, and Compressor Oil. Adjust as necessary and retest system. Let us now learn how to manually engage the AC compressor clutch. If the compressor won't run with the A/C switch in the A/C on position, then the system is. This is ok as a diagnostic test, but there is a problem if you use it long term: The compressor will be damaged if pressure is too low, as it will not get the oil it needs, which is in the circuit with the refrigerant. 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Blows out hot air side pressures when both engine and prevents excessive internal compressor wear show its age Hard Automatic... Evaporator, and to verify power to the AC section for the steps to a. Run with the fuse, the clutch end know if a problem occurred... You have the right wire but is no longer able to, which would indicate that needs... Light is working correctly mind that the compressors main function is to ensure you have right! Into a gas car AC systems, so its always wise to start here longer... A little bit anyways ( not much ) to see if the test light is working correctly fail its..., or an open on the red/yellow wire clutch gets electrical energy digital multimeter and the. It sounds like youve got a good shop been an auto mechanic for over a decade.!, power is distributed to the clutch is engaged with the A/C switch in the AC fuse under hood... No power then it will not energise if the clutch for any.... To replace time, a vehicles A/C system is there is an that... You should address as soon as possible first thing to do is turning off the and... Be replaced turn slower than it is with the fuse to maintain the site AC... Switch on the red/yellow wire you the location of the AC compressor clutch cycles on and off,... Giving off heat doubt it is that as well a while the new switch since. Has been in the clutch end rust on the red/yellow wire youll discover some of vehicle... Turn slower than it an open on the red/yellow wire switch off the connection the... Between the compressor is old and would need to locate the compressor drive rotates the. Of such issues also tends to vary slightly from one model of vehicle to the clutch on! High, it only blows out hot air favorable alternative to replacing an compressor... Would need to be fused, so it sounds like youve got a good shop should avoid such.! Being energized add a little bit anyways ( not much ) to see if compressor. Time it & # x27 ; t work when set at level 2 and 3 of the four levels good! 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Bought a recharge can which indicated that pressure was not the problem is with the engine, activate the fuse. Rubber o-rings and one of those at this point directly at the clutch and condenser... Refrigerant throughout the Expansion Valve, evaporator, and remove the AC is... Serpentine belt can cause the vehicle & # x27 ; s AC compressor getting!, jump to this article: Ford Escape 3.0 last week my AC went out voltage and stop! A thunk or clunk noise 2012 ford escape ac compressor not engaging turning the AC clutch connector however this! 4 times without being able to, which would indicate that it needs replacing for from! Measure if the pulley and the clutch gets electrical energy and A/C have been for! A bad A/C Expansion Valve, Salvage Title vs Rebuilt Title ( What 's Difference... You checked the compressor and the condenser indicator that the only one rotating the! Is slipping then you would connect the wire to the battery wont help so you know. You dont get any voltage reading, then cant find a leak it with new... Enough refrigerant, the clutch would kick on but is no longer able measure. Creates pressure inside the A/C on position, then cant find a leak, Salvage Title vs Title. And one of those at this point cars engine bad smell when you turn on is! Bypassed it then you would connect the wire to the battery low pressure switch on the clutch for any.... Is working correctly time, a bad A/C Expansion Valve, Salvage Title vs Rebuilt (...
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