However, modern car models use a variable AC compressor and these systems are meant to work all the time when the engine is running. 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. If there are air and moisture in the system, it probably leaks. If they are not having to add any refrigerant, or are doing so only because they dont have a clue what is wrong, it sounds like they are not diagnosing the problem and Id also say take your car elsewhere. Tiny bits of metal can clog your AC condenser. They checked the levels and the pressure was good before they did anything else. Method 2: Jump-start The Clutch The process is a bit different for older cars that are not compatible with the R134a type. [/QUOTE A/C has around 97 psi on high and low with ac max compressor not engaged. Who knows, you might get lucky like I did. During this operation, the compressor drive rotates with the engine of the vehicle. Ford Fiesta 2013 Thanks for the input guys, there are only 2 relays in the engine bay behind the battery - bit concerned about pulling them incase it resets something I shouldn't - do you know what colour the relay was? The clutch is not getting a signal to turn on. the heat will not shut off and airconditioner wont engage when control knob moved from heat to cool. I bought a recharge can which indicated that pressure was not the problem, rather something else. SEE, I think it's a 15 pin plug and two wires change on the plug fro 95 to. . I attempted to add a little bit anyways (not much) to see if the clutch would kick on but no luck. It seems pretty predictable that a recharge/evacuation resolves the problem short term. As a result, no rotational force is applied to the A/C compressors driveshaft. 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. No problems since then (two years ago). Removing a relay is unlikey to do any harm, but bridging contacts is not a good idea unless you are sure what the contacts do! In the past, A/C clutch replacement was viewed as a favorable alternative to replacing an A/C compressor in its entirety. Almost every major automotive manufacturer now recommends compressor replacement in the event of an A/C clutch failure. If you have an account, sign in now to post with your account. 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? Copyright 2023 AutoMobile Remedy, All Rights Reserved. You should first check the electric system, clutch, and other parts for issues and leaks before going ahead with this fix. I too am thinking I need to take it someplace else for further diagnostic. If the compressor clutch cycles on and off rapidly, then the system is most likely low. 2012 Ford Escape 3.0 last week my AC went out! 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. But if you see that the only one rotating is the pulley, then theres a problem with the system. Another possible cause could be leaks in the AC system. Is the AC clutch supposed to spin all the time? Many modern-day cars are built with AC clutches that turn on and off using high and low-pressure switches and compressor oil levels through the fuse. Your shop should know where that spot it for your cars AC design. Alexdeltaron Hence, it is also important that these two is well-maintained at all times so that it always functions properly. You can try disconnecting the low pressure switch and bridging the connector , run engine briefly with air con on and see if compressor engages. If the pulley and the clutch are both spinning it shows that the clutch is engaged with the pulley correctly. The pulley should be turning and then the compressor clutch should engage. ), P2004 Code: IMRC Issue (Symptoms, Causes, and Fixes). It may be because the vents are covered with frost. Thanks Ken. If not on, the condenser will get too hot to work, and the a/c will shut down. That could explain why it works for a while, then stops working. What, if anything, could I try to diagnose? If you click on these links and eventually make a purchase on Amazon, we get a commission. might look to manually run the AC pump directly at the clutch end. If it engages, the clutch gap is too wide. Started Sunday at 04:53 PM, By Basically youre creating instant fog from the high dew point, saturated air, and sudden cold. Mechanic's Assistant: Have you checked the Freon level? srpocd25 Check your owners manual to find the fuse for the AC clutch. Using an ultraviolet (UV) leak detection light, inspect thecondenser near the receiver/dryer cap for the presence of dye. Providing the clutch coil with alternate hot and ground sources can assist you in pinpointing the root cause of compressor clutch-related issues. There are many ways for AC compressor clutches to receive power. With This 2012 Ford Escape I show you the location of the AC magnetic clutch relay and the AC fuse under the hood. Need the manual, really. Switch needs to be plugged into connector and just because it is new, does not mean it is good. A/C only blows cold air below 78 degrees or so. Youll need a jump wire. Related: Symptoms of a Bad Car A/C Condenser. Air is cold. Compressor does not run in any AC mode. On the front of the compressor, sandwiched between the belt, youll find about a 1/8 gap. 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. The last thing you want to deal with is a hot car cabin. After inspecting the belt, there can only be two things left that could be happening: 1. However, this is seldom the case today. Started 13 hours ago, By If thats the case, jump to this article: Ford Escape AC Not Blowing Cold. Please check your cars AC manual to know its right level of pressure. If this circuit is traced the fault of a open circuit can be found out. Started Tuesday at 12:48 PM, Ford Owners Club However, a vehicles A/C system is only as good as its ability to operate properly, without any electrical or mechanical faults. Key on, engine off, test for 2 powers at the relay cavity. Fv 27, 2023 . When the engine is on. The clutch compressor is enabled through the engine that is directly attached to the compressors pump rotor using a belt. It may even be illegal to do it yourself where you live. One of the most common of all A/C system-related faults is those which manifest as an inoperable A/C compressor clutch. Amazon Link AC Relays (Honda) - https://amzn.to/34vFNsrAmazon Link AC Relays (Toyota) - https://amzn.to/2NaBJbNIf your A/C compressor clutch won't engage bec. Pennzoil vs. Mobil 1 Oil: Differences & Which Is Better? We use cookies to ensure that we give you the best experience on our website. Being on this page means that youre having issues with your Ford AC compressor clutch and/or your AC blows warm air instead of a cool breeze. If there is no voltage, continue troubleshooting. 0 %. Sounds to me like you have a leak somewhere. 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. After inspecting the belt, there can only be two things left that could be happening: 1. If the pulley is the only part spinning, it means that the clutch is damaged, and the AC will not work properly. Your link has been automatically embedded. 5 Signs Your Cars AC is Low on Freon (& What to do), 4 Symptoms of a Bad AC Pressure Switch (High or Low), 5 Signs of a Bad AC Compressor Clutch (& Replacement Cost), Car AC Not Blowing Cold Air? Before replacing the old compressor with a new one, you should check every part to ensure that the problem wont require an easy fix. Definitely dye should be added so that any leaks can be found. 5 Best Fire Extinguisher For Cars Be Ready For Fire Emergencies. There are several instances when manually engaging an A/C compressors clutch can prove valuable. Jiffy Lube Vs. Valvoline Oil Change: Differences & Which Is Better. It could also slip at times, leading to erratic operations. and what to Has Been In The Shop 4 Times For This Same Problem. Started February 26, 2015, By This helps the refrigerant to turn into a gas. However, if the clutch is engaging but the AC isnt cold, then there could be a leak in the AC system. If it has blown, your only option is to replace it. RELATED: 5 Signs Your Cars AC is Low on Freon (& What to do). Stephen Interior Leave a comment 7,609 Views. Any ideas why its not lasting? Without this energy, the armature plate and compressor belt become disengaged, so the clutch will no longer be active. See the FAQ in the AC section for the steps to adjust the clutch gap. This indicates some form of wiring problem. Fill it up until the pressure indicator on the refill . That is RIDICULOUS, Cheryl. Modern automotive A/C systems rely upon the use of several switches to operate efficiently. However, we strongly recommend that this be done by professionals with the right tools. My 08 Forester was acting like this, except the a/c worked for a period of 2 - 3 months rather than weeks. Clear editor. 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. Debris in the system will quickly plug the tiny orifices in the system. In some car models, you may also need ground. You should be able to reference a diagram in your cars service manual. Cold temps in winter will constrict the rubber o-rings and one of them will leak. Plenty enough to get it to engage. Instead, you might need a new pressure switch, replace a bad fuse or fix an electrical connection. We are a team of ASE certified mechanics If there are metal bits, you need to address that asap b/c if they work their way into the compressor they will ruin it. No leaks. Options. 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. Unplug the compressor connector and install jumper connectors to the electromagnet. 37 % of the time it's the. Started December 2, 2020, By This means you would have to spend to get a new compressor, however, it will save you time and money. Ford Escape. DaveOM Inspect the harness to make sure that it doesnt have any opens or shorts. In other words, the system is low on refrigerant. A vehicles A/C system stops the summer swelter in its tracks, replacing it instead with a comforting chill. If it clicks on for just a second or two and repeats this cycle, then the low pressure switch is engaging and cutting off the compressor. Check Function Using a 12-volt test light, connect the alligator clip to the negative terminal on the battery. The compressor compresses refrigerant vapor and by doing so it converts it to liquid refrigerant under pressure. Inspect the compressor and check to see if the belt that goes over the pulley is in good condition. Perhaps someone can help get to bottom of this. Certified Automotive Diagnostic Technician. DizzyG 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. You can use DIY kits to recharge the system, however, you must do so correctly to prevent overfilling the system which could create problems. Compared to the evaporator coil, the AC expansion valve is cheaper to replace. If I find something out from my mechanic, Ill give you guys an update. If it looks good, its time to move on to testing the relay and seeing if you can manually get the compressor to turn on. If you hear a thunk or clunk noise after turning the AC on, the compressor is engaging. You may be in one of these two situations, if so, you should check the fuse of the compressor clutch. Ships from and sold by Parts Geek LLC. Started February 20, By To perform this step, you would connect the wire to the clutch directly to the battery. 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. My 2010 Ford Escape will blow cold air for about 3 seconds when the AC is turned on. If you turn on the AC and immediately hear a rattling noise, there are a few potential causes: Compressor: If your AC compressor is beginning to fail, it can make a rattling noise. If nothin happens, ac clutch bad. Click Here for the 5 best options. The failure of any of these sensors can render an A/C clutch inoperable. Started February 6, 2020, By The #1 Ford Explorer enthusiast resource for over 25 years! . Here is to hoping its a 60 cent o-ring. Bypass the 3 wire AC pressure switch through B1 to B4. When problems of this nature arise, an A/C systems gasses fail to circulate, thereby preventing cooling from taking place. When the two are separated, pull the switch off the connection and attach the new switch. You should also check the high-pressure switch and evaporator temperature sensors for signs of faulty or loose wires. Just wondered if there is a common issue, I will probably manually engage the AC compressor and check the air temp in the car which would then indicate if there is a refrigerant issue - not sure if these systems have a pressure failsafe where it doesn't operate if the internal pressure isn't high enough? If they arent having to add freon, then either the compressors not engaging, or theres a problem with the doors or the fan in the HVAC system. Marvel Mystery Oil vs Seafoam: Which is The Better Choice? But, first, youll need to locate the compressor relay. But as was mentioned by someone else, if they are having to add refrigerant, then you have a leak. When we perform an A/C repair on your 2011 Ford Escape, we'll also do an A/C evacuation and recharge. These switches directly influence power/ground delivery to an A/C clutch. Now the AC compressor clutch is engaging and disengaging in about a 4 second 50/50 cycle. Inspect the belt to see if it is cracked or shiny. The A/C compressor for your Ford Escape starts the refrigeration cycle by pressurizing the refrigerant in the A/C system. The most common reason why your AC clutch is not engaging is that the AC refrigerant level is too low or too high. -or-. rcmckee Started 2 hours ago, By If the fuse is fine, then you need to check the clutch relay. 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. I appreciate the help and sorry for me english it's very rusty. The Compressor Is Cycling More Often Than I Recall. There are three reasons why the compressor clutch does not engage, especially if the sensor detects them. A vehicles air conditioner compressor clutch serves as the make/break point for power distribution to an A/C compressors internal drive components. 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. I'm not sure exactly how it works for these cars but there should be a 12v jumper on another pin that opens and closes the relay. Ensure that your engine is turned off when performing this inspection. So, to know the exact operating pressure on the high-pressure side of your AC system, it is best to check the user manual. This indicates some form of wiring problem. The next step is to check the high and low-pressure switches in the AC system. How much does a Car AC Repair cost? If you notice that the belt is slipping then you would have to adjust it. (Or Is It Just a Convenience? 85ltdcrownvic. 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. I will have another root around for the issue, not really too concerned - might look to manually run the AC pump directly at the clutch end (its easy to get to) and see if the AC blows cool, if it doesn't then it might need regassing - eg its under pressure so it won't run. Im Stephen and Ive been an auto mechanic for over a decade now. Also, it is quite labor-intensive to take out an old compressor and fix a new one. They did an evacuation and recharge of the system. 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. Over the past few days when I have wanted the AC the cooling system hasn't worked, I am just figuring out what it could be. Compressors are expensive. Most vehicles rely upon the use of a relay to control A/C clutch operation. But if the pressure is too low, youre probably looking at a leak in the AC system. Warm Air is Blowing. That happened last Fall, so we waited until this spring to try again. Your compressor will tell you if it needs more refrigerant when the pressure gauge on the high-pressure side of it reads a pressure that is lower than what it requires. If you notice any damage to a wire or a connector, it should be replaced immediately. Previously the air didn't work when set at level 2 and 3 of the four levels. AllIcouldAf-ford This action will help your compressor maintain its good workings. When you turn on the air conditioning, you expect to feel cold air pour out. The independent I use for this vehicle doesnt work on air conditioners, so I took it to the dealer. With no pressure in the system the low pressure switch will not allow the compressor cycle so that's probably the issue. It may just be that the belt cant turn the compressor anymore. (Radiator fan). After inspecting the belt, there can only be two things left that could be happening: 1. 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 go ahead with fixing the old compressor, you may have to do it several times which means you would spend a lot of money on these fixes. The receiver / drier aids in filtering and storing liquid refrigerants until it turns back into a gas. Thats why Ive decided to put up my very own website. Ensure that your engine is turned off when performing this inspection. If the compressor engages for 1-3 seconds on a COLD start, there's probably nothing wrong with the compressor or the clutch or its relay. 2-3 weeks later, we saw the same puff and then no cold air. Ill need to figure out where to go, but thanks again for all your suggestions. Because of this, partial failure of a control module can also lead to compressor clutch in operation. Once you find the appropriate fuse, check the functionality with your multimeter. The condenser, expansion valve and . The Ford Escape AC system is controlled by the HVAC controller and PCM, along with several temperature sensors. Remove the AC connector, check a wiring diagram, and pull a fused wire from the battery to the connector. 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. Pasted as rich text. Symptoms. The best solution here is to replace the entire unit if you notice that the compressor is bad. Read on and learn how to diagnose and fix AC compressor clutch issues. In some AC clutches, you will find some spacer shims that can be removed to extend the life of the clutch a little more. They repeated the same evacuation/recharge process again and the A/C started working again. When the A/C is activated, the A/C compressor clutch locks to provide power to the compressor. Get a click, we can start troublshooting wires. Started August 12, 2021, By Check if this fits your 2012 Ford Escape. 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. . This item: A/C Compressor Kit - Compatible with 2008-2012 Ford Escape. Its meant to engage and disengage the compressor pulley from the drive. This isnt too expensive to replace and is better than having to fix a new AC compressor. Make sure that you are loading it with an oil that is matches your compressor. 2. However, it normally makes more sense to put in a new AC compressor. The most important connection is the 12v+ power wire to the AC clutch, if the wire is damaged or corroded somewhere, it will fail to engage the clutch. Theres most likely a leak, bad evaporator, or a bad compressor (that is turning on, but not working). I would be curious about the system static pressures. If one of these sensors is faulty, it can send an incorrect signal to the AC compressor clutch and shut it down even if the pressure is correct. With the air conditioner turned off, a vehicle's A/C compressor pulley free spools. Using an ammeter, check Gray/White wire for current draw at A/C clutch coil connector. You will know that something is wrong with the AC system if something in it is not working properly. natedawg8t6 In other instances, an A/C clutch assemblys coil can fail in its entirety, thereby preventing clutch engagement. If you find yourself with a locked-up condenser, consider checking around the connection between the compressor and the condenser. A comforting chill youre creating instant fog from the battery check the electric system, clutch, pull. The electric system, it is new, does not engage, especially if the clutch.. Be turning and then the system is low on refrigerant find something out from my,. 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