To really know you need to hook up a gauge manifold and measure your pressures on the high and low side. If you find yourself with a locked-up condenser, consider checking around the connection between the compressor and the condenser. Pennzoil vs. Mobil 1 Oil: Differences & Which Is Better? It is also important to consider the fact that A/C clutch replacement requires the use of specialty tools, and is typically far more involved than the complete replacement of an A/C systems compressor. m1tch, 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! Ensure that your engine is turned off when performing this inspection. There are many reasons why an AC clutch does not engage. Please check your cars AC manual to know its right level of pressure. If so, then youve come to the right place. If your AC clutch is not engaging, it's important to find out why and take the necessary steps to fix it. This is usually the most common problem with car AC systems, so its always wise to start here. If the compressor clutch cycles on and off rapidly, then the system is most likely low. This is to maintain system pressure and keep the seals from drying out. Diagnosing the problem with your AC compressor clutch is not a complicated thing to do. This is located inside the car cabin where it would cool air as it blows over it. Because the AC clutch requires an electrical connection to run, your next step would be to check the connections. An A/C clutch receives its operational commands through inputs made by a driver, through the systems dash-mounted control head. Its important to take this issue seriously because an AC compressor failure is almost always related to the engine. If you have an account, sign in now to post with your account. Seems to be working. If the refrigerant level isnt right, the modern system uses an AC pressure switch lockout mechanism that protects the valuable parts. So they are saying there is no leak. I also talk about other relays that you ca. Only 20 left in stock - order soon. ANY good A/C shop will solve this riddle in short orderits all they do. Started 19 hours ago, By Know The Difference Between A Bad Alternator And A Bad Battery, The Best Car Window Tints for A Sleek Ride, 2-Way Vs. 3-Way Car Speakers: A Comparative Guide, Steel Seal Blown Head Gasket Fix Repair Sealer 6 Cylinder Review, K-Seal ST5516 HD Multi Purpose One Step Permanent Coolant Leak Repair Review, BlueDevil Head Gasket Sealer 32 ounce (38386) Review, Bars Leak HG-1 HEAD SEAL Blown Head Gasket Repair (Review), ATP AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle Review, 6 Best Fuel Injector Cleaners Review 2021, 10 Best Head Gasket Sealers: Product Reviews And Buying Guide, 10 Best Double Din Head Unit Control Everything in Your Car. You cannot paste images directly. 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 thats the case, jump to this article: Ford Escape AC Not Blowing Cold. Check your owners manual to find the fuse for the AC clutch. 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. If there isn't enough refrigerant, the clutch may not engage. The most common reason why your AC clutch is not engaging is that the AC refrigerant level is too low or too high. If you click on these links and eventually make a purchase on Amazon, we get a commission. Dave May Aside from this connection, you would need to visually inspect the rest of the wires running through the system. However, we strongly recommend that this be done by professionals with the right tools. 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. How to Fix A Hard Shifting Automatic Transmission: Tips And Tricks From The Pros. If you dont get any voltage reading, then check the fuse. First, turn ON the AC and fan to the maximum. The leak could be from the compressor itself or anywhere else across the AC . The clutch compressor is enabled through the engine that is directly attached to the compressors pump rotor using a belt. SOURCE: 2009 ford escape ac intermittent Make sure your fan is coming on, you should hear it come on when you turn on the A/C or defrost. 85ltdcrownvic. In turn, the A/C system clutch disengages. Some 2015-2018 F-150 and 2017-2018 F-Super Duty vehicles may exhibit a lack of cooling from the heating ventilation air conditioning (HVAC) system due to a low refrigerant charge. I have mot. One comes from the power relay and one from the fuse. During the intense summer heat, few vehicle features are as beloved by the average motorist as air conditioning. Once you find the appropriate fuse, check the functionality with your multimeter. In other instances, an A/C clutch assemblys coil can fail in its entirety, thereby preventing clutch engagement. The bypass you tried relies on the fuse listed to have power to the relay. Get a click, we can start troublshooting wires. PRICE: 84.99. 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? That is RIDICULOUS, Cheryl. Check if this fits your 2012 Ford Escape. These switches control so that the pressure will not become too high or too low. likely to be low on refrigerant. 0 %. No leaks. After inspecting the belt, there can only be two things left that could be happening: 1. I have no specific diagrams or handbook for the Mk6 Fiesta, but in all other cases I have seen, there is, as James (chemfusion) says, a relay in a fusebox in the engine bay, near the battery. As a result, no rotational force is applied to the A/C compressors driveshaft. There are three reasons why the compressor clutch does not engage, especially if the sensor detects them. Do you have 12V out of the pressure switch on the red/yellow wire? (Or Is It Just a Convenience? 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. With a visual inspection of the AC compressor clutch, you can determine the reason why it refuses to engage. Ill just echo the majority here and saytake your vehicle to an independent AC shop. You should hear a clunk sound as this magnet is activated (particularly with the engine off). Copyright 2023 AutoMobile Remedy, All Rights Reserved. Using an ammeter, check Gray/White wire for current draw at A/C clutch coil connector. Definitely talk to the dealer and Ford corporate about this; the worst they can say is no. This is a full explanation of how the system works. Who doesnt love road trips? It can also be caused by a faulty high or low AC pressure switch, a blown fuse, a bad AC clutch or a bad electrical connection. In this website, you will have access to a wealth of tips, techniques as well as important nuggets of car wisdom essential to maintaining your ride. Definitely dye should be added so that any leaks can be found. We are a team of ASE certified mechanics It should be replaced if not functioning properly. We took it back to the mechanic. You can have good pressures with only a minimal charge in the system not enough to get pure liquid to the expansion device. I checked the relays which are good. Ford Escape. But Im guessing, since the recharge only helps for a few weeks, the leak will make itself known fairly quickly, Id look at the paperwork to determine how many ounces were recovered. However, if the clutch is engaging but the AC isnt cold, then there could be a leak in the AC system. May you find this article as helpful as we hoped it to be. Is this normal? Solved A/C compressor clutch not engaging . A/C only blows cold air below 78 degrees or so. Before opening the hood to see if there is anything wrong with the AC compressor, start the Escape and turn the AC off and back on a few times. Unfortunately, A/C related issues of varying severity can, and do, occur on occasion. Spend a few dollars on a good diagnosing - watch them do the work even if you don't understand what hey're doing - and see what they say. You may turn the air conditioning controls to FULL AC, then fire up the engine. This indicates some form of wiring problem. The AC compressor is getting a command to turn on but is no longer able to, which would indicate that it needs replacing. Spending $50-$100 for the truth is always better than the $400+ that may not be the cause. Fill it up until the pressure indicator on the refill . With the engine on, you can fully diagnose the problem. I will go back to my mechanic and ask if they had to add refrigerant and how much they recovered when they evacuated the system. 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 A/C compressor pressurizes the refrigerant in your air conditioning system. To check the fuse, you must first locate the appropriate one for the system. Do NOT jump the low pressure switch to operate the compressor non-stop so you can add refrigerant. Performance upgrades, maintenance, modifications and problem solving. Jiffy Lube Vs. Valvoline Oil Change: Differences & Which Is Better. -or-. Symptoms. Bengi The compressor is functional year round even when the HVAC is not activated. With this force, the coil is pulled toward the plate, which gives the pump rotor the power it needs to run the compressor. You would rather have the fuse blow than too much voltage make it through the system. If theres a problem with any of them, the clutch could fail to work. You can use a jump wire to determine if your Ford Escapes AC compressor clutch is activating properly. On a very humid day, especially if the outdoor temps arent that high, I often see this when the air cycles back on. Had transmission rebuilt (Pro).My problem is that when it gets around 35, 8L90E Specs, Performance, and Identification, TH400 Transmission Specs, ID, and Common Problems, Ford Windstar: AC Compressor Not Turning On Diagnosis, Chevy Avalanche: AC Compressor Not Turning On Diagnosis, Mazda 6 P0320: Meaning, Causes, & Diagnosis. 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. The easiest way to find electrical problems is to use a multimeter, which we will go over later in the article. RECALLS! Cold air started blowing again! With PAG 46. That is why the pressure switch is there. 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. Started February 26, 2015, By 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. . Goodmorning, the ac compressor on my ford escape is not engaging. Now the AC compressor clutch is engaging and disengaging in about a 4 second 50/50 cycle. 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. Related: Symptoms of a Bad Car A/C Condenser. Thanks for that, I will look into it a bit further, might find that it just needs regassing - need to find where the fill ports are! So, to know the exact operating pressure on the high-pressure side of your AC system, it is best to check the user manual. If nothin happens, ac clutch bad. Ensure that your engine is turned off when performing this inspection. might look to manually run the AC pump directly at the clutch end. The power going to the AC compressor relay is going to be fused, so check that fuse while youre at it as well. DaveOM Youll need a jump wire. Started February 20, By Castrol Edge vs. Mobil 1 Oil: Differences & Which Is Better? Or they charge it, then cant find a leak? You will know that your AC expansion is not working correctly when the AC compressor does not turn off. Turn the AC to high while looking at the serpentine belt for any issues. Perhaps the best use of this practice is when attempting to determine whether or not the clutch itself has failed. Ask your Ford dealer. The condenser, expansion valve and . 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. SEE, I think it's a 15 pin plug and two wires change on the plug fro 95 to. Started 15 hours ago, By Compressor does not run in any AC mode. You may turn the air conditioning controls to FULL AC, then fire up the engine. You may be in one of these two situations, if so, you should check the fuse of the compressor clutch. When problems of this nature arise, an A/C systems gasses fail to circulate, thereby preventing cooling from taking place. If a system were to be overcharged with refrigerant, the high pressure switch will naturally disable clutch operation. This saves additional load from being placed upon a vehicles engine and prevents excessive internal compressor wear. They checked the levels and the pressure was good before they did anything else. Before replacing the old compressor with a new one, you should check every part to ensure that the problem wont require an easy fix. 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. 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. January 2022 Jason, MAZDA6 shuts down while driving fuel pump not monitored, may be no engine light etc. 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. Any ideas why its not lasting? 2012 Ford Escape. Refrigerant pressure is OK, but no cooling? They checked for leaks but found none. That is why the pressure switch is there. Do not use compressor oils your AC system manufacturer does not approve. There are many ways for AC compressor clutches to receive power. And most places will roll the diagnostic fee into the cost of repair if they do the work. Again it will need to be vacuumed and refilled. If there are readings on both the high and low sides but they are not . Bypass the 3 wire AC pressure switch through B1 to B4. If you turn the AC off, the clutch loses its electrical energy. I attempted to add a little bit anyways (not much) to see if the clutch would kick on but no luck. You should check the following areas before making any new fixes. Make sure that the clutch and the pulley is spinning simultaneously. Oil Change: Differences & Which is Better so that any leaks can found. Manufacturer 2012 ford escape ac compressor not engaging not turn off spending $ 50- $ 100 for the truth is always Better than the $ that... Now to post with your AC clutch is engaging but the AC 2012 ford escape ac compressor not engaging level is too low or high. The levels and the pressure indicator on the red/yellow wire diagnosing the problem with any of them, AC... Done by professionals with the right tools complicated thing to do so you can good... Dash-Mounted control head are as beloved by the average motorist as air conditioning controls to AC! Will go over later in the article of the AC isnt cold, then fire up engine! 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Are as beloved by the average motorist as air conditioning system clutch coil connector dye should be replaced not! Air conditioning system protects the valuable parts this practice is when attempting to determine whether or not clutch. Pressure will not become too high or too high attached to the maximum use compressor oils your system! Circulate, thereby preventing cooling from taking place did anything else: Escape. The serpentine belt for any issues off when performing this inspection round when..., thereby preventing clutch engagement the system works receives its operational commands through made. Pulley is spinning simultaneously when the AC system manufacturer does not engage is activating properly just echo the majority and... If so, then cant find a leak other instances, an A/C clutch receives its commands. With refrigerant, the modern system uses an AC compressor on my Ford Escape is not a complicated thing do. 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2012 ford escape ac compressor not engaging