That is why the pressure switch is there. Inspect the harness to make sure that it doesnt have any opens or shorts. But, first, youll need to locate the compressor relay. If theres a problem with any of them, the clutch could fail to work. How much does a Car AC Repair cost? PRICE: 84.99. You can use DIY kits to recharge the system, however, you must do so correctly to prevent overfilling the system which could create problems. . You should check for leaks from the condenser, receiver, and any areas where metal piping connections are made. Check the front of the compressor clutch. No leaks. It is possible that on this car, the clutch fuse is the one in the PJB (glovebox fuse box). The A/C stopped blowing cold air shortly after that. You will find an AC pressure switch on the low-pressure side of the AC system and you will find one on the high-pressure side. When a vehicles A/C system is commanded into operation, power is distributed to the A/C compressor clutchs magnetic coil. If you turn the AC off, the clutch loses its electrical energy. However, most car AC systems now use an electromagnetic clutch piece that engages the compressor to spin the air conditioning unit. Check the ac pressure - To check the ac pressure or psi, start your car and turn the ac to HI. The A/C compressor is activated by the A/C clutch and driven by the engine's belt. The video directly below does a fantastic job of describing this entire process. However, it normally makes more sense to put in a new AC compressor. 85ltdcrownvic. Failure of any type within this unit can prevent a clutchs coil from being energized. Another possibility to check is whether the compressor clutch is not reliably engaging due to wear. (4 Causes and How to Fix), Does Cruise Control Actually Save Gas? May you find this article as helpful as we hoped it to be. You would rather have the fuse blow than too much voltage make it through the system. AC compressor not staying engaged. Here is to hoping its a 60 cent o-ring. Seems that my mechanic does not know what else to try. #2. The compressor then creates pressure inside the A/C system to cycle refrigerant throughout the expansion valve, evaporator, and . Started December 2, 2020, By 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. Related: Symptoms of a Bad Car A/C Condenser. Perhaps someone can help get to bottom of this. srpocd25 You can try disconnecting the low pressure switch and bridging the connector , run engine briefly with air con on and see if compressor engages. The clutch is not getting a signal to turn on. This gives power to the pump rotor that keeps the compressor running. After inspecting the belt, there can only be two things left that could be happening: 1. They should put in a UV dye so that when it finally happens again , theyll see the leaking area. There are many reasons why an AC clutch does not engage. 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. I think the puff of smoke coming out of the vents is unrelated. Who knows, you might get lucky like I did. There are three reasons why the compressor clutch does not engage, especially if the sensor detects them. Dave May On most designs there is a place where debris, if there is any, tends to accumulate. 37 % of the time it's the. This does not in any way affect the price you are to pay for any Amazon product. 5 Best Fire Extinguisher For Cars Be Ready For Fire Emergencies. It may be because the vents are covered with frost. But if you see that the only one rotating is the pulley, then theres a problem with the system. 2. Pull it and check for both power and ground on the relay through the terminals in the socket. Pulley: If the compressor pulley bearings are failing, they can make noises, generally a grinding, roaring or squealing noise. Thats why Ive decided to put up my very own website. Thats where you will get the problem resolved. 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. When the heater is on the temperature is above 20 C and the AC can be in defrost mode. On the other hand, if it is turning freely, we need to determine why its not activating. Purging and re-filling is the correct procedure, so it sounds like youve got a good shop. With This 2012 Ford Escape I show you the location of the AC magnetic clutch relay and the AC fuse under the hood. In most car models, only a +12v cable goes to the AC connector, but sometimes you can also find a ground cable. The leak could be from the compressor itself or anywhere else across the AC . Each time Ive taken it in, they have said that the refrigerant pressure checks out OK. Before replacing the old compressor with a new one, you should check every part to ensure that the problem wont require an easy fix. Unplug any relay terminal wiring with the interior car A/C controls in the "off" position. The most noteworthy of these switches include low pressure switches, high pressure switches, and evaporator temperature sensors. When the two are separated, pull the switch off the connection and attach the new switch. Please check your cars AC manual to know its right level of pressure. sambooka The A/C compressor pressurizes the refrigerant in your air conditioning system. What is the AC clutch and how does it work? $8499. 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! It could be something has broken and theres metal bits moving through the system. . Common Causes (& How to Fix). You cannot paste images directly. No, if the Freon level is too low, it will not engage the AC clutch. Just wondering if you ever found a fix??? 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. If the clutch does not engage and spin, the problem could be an internal short. Its located next to an electromagnetic coil. 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. If the refrigerant level isnt right, the modern system uses an AC pressure switch lockout mechanism that protects the valuable parts. 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. ANY good A/C shop will solve this riddle in short orderits all they do. With a visual inspection of the AC compressor clutch, you can determine the reason why it refuses to engage. With the clutch plate worn out, the clutch may not be able to engage. If your AC clutch is not engaging, it's important to find out why and take the necessary steps to fix it. If current draw is 2.5. 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/dryer is running short of liquid. In modern cars, you can sometimes use an OBD2 scanner to diagnose the AC system, and in this case, you can see the pressure that these sensors measure with the diagnostic tool. To manually engage your AC compressor clutch, you must send +12v power on the cable to the AC clutch. 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. The best solution here is to replace the entire unit if you notice that the compressor is bad. 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! 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. The AC compressor pulley is always being turned by either the serpentine belt or a dedicated belt (its going to depend on the model year and engine type). Many systems also route control head signals through a vehicles ECM/PCM. Fixing or getting rid of the rust in the clutch plate wont help so you should avoid such fixes. You might have to turn the engine on to get results but this should still work with the engine off. . You can have good pressures with only a minimal charge in the system not enough to get pure liquid to the expansion device. Mark helpful 55,895 Tracy answered 8 years ago This indicates some form of wiring problem. By 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 you find yourself with a locked-up condenser, consider checking around the connection between the compressor and the condenser. Check the front of the compressor clutch. The clutch is operated by an electromagnetic switch in most vehicles. If it is not the refrigerant that is the problem, it may be because the oil level is low and needs to be replaced. 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. This energization of the clutch coil creates a magnetic field, and facilitates clutch engagement, by pulling the clutchs drive plate inward, where it meshes to the clutch body/compressor pulley. You may also notice a bad smell when you turn on both heat and AC. m1tch, Your AC system may read an abnormally high pressure if a refrigerant has overcharged your compressor. RELATED: 4 Symptoms of a Bad AC Pressure Switch (High or Low). This is a full explanation of how the system works. It uses a clutch to grab the pulley and cycle coolant through your Escapes AC system. Started 13 hours ago, By Inspect the belt to see if it is cracked or shiny. Common Causes of AC Clutch is Not Engaging, Ways to Fix an AC Clutch Thats Not Engaging, 5. I checked the relays which are good. 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. laumk7 Looking for a good online repair manual? Limited-Lifetime Warranty. If there is no voltage, continue troubleshooting. Going further would require some basic knowledge of the components of an AC compressor clutch. Inspect the compressor and check to see if the belt that goes over the pulley is in good condition. Bengi (Or Is It Just a Convenience? Your shop should know where that spot it for your cars AC design. Above that, it only blows out hot air. Automatic gearbox jammed in PARK, easy to permanently fix free, MK4 St-Line Estate 1.0 125bhp economy & performance, My 2013 Ford Fiesta 1.6 Diesel is making a whining noise after the car is turned off, Speed limited engine malfunction with CAN fault codes, Touch up repairs - clues/recommendations/tips, Car starting too quickly on cold mornings? Today, aftermarket A/C compressors can be purchased for a reasonable cost, eliminating the monetary advantage associated with clutch replacement. Once you find the appropriate fuse, check the functionality with your multimeter. With time, a compressors clutch assembly can begin to show its age. Just took it back to mechanic. Started 12 hours ago, By The high pressure is less likely, only if the system is overfilled, or you leave the car in the Sahara desert in full sun for a few hours! Only 20 left in stock - order soon. Don't leave it running to long like that though. This item: A/C Compressor Kit - Compatible with 2008-2012 Ford Escape. Route the wires to the car battery. If there is a ground wire, you should also check the ground. Indeed they do, if the pressure is too high or too low it won't activate I believe. 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. He has been working as a car mechanic for over 10 years, and the majority of them specialized in advanced car diagnostics and troubleshooting. An over-charged AC system could also cause the clutch not to engage and the pressure will cause its parts to wear out faster. Last summer, the A/C on our 2012 Ford Escape stopped blowing cold air. An A/C compressor clutch can fail to engage for a number of reasons, many of which are electrical in nature. That activity is pre-programmed into the PCM so it's done regardless of the settings of the HVAC system. 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. You could also get warm air instead of cool air. No matter where you live if your Ford Escapes AC compressor is not turning on, it can turn a pleasant commute into a nightmare (particularly if you have kids that are riding with you). Started 19 hours ago, By Here's my recommendation: Do the assembly work, if you bought the vacuum pump, use it in helping you determine if it's a tight system. If you see the correct voltage and ground, you know the problem is either a worn AC clutch, bad clutch coil, or corrosion in the clutch connector. If not on, the condenser will get too hot to work, and the a/c will shut down. Thank you so much for the feedback thus far. Powered by Discourse, best viewed with JavaScript enabled, A/C stops working on 2012 Ford Escape 2-3 weeks after recharge/evacuation. Your link has been automatically embedded. 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. That can be an indicator of whether or not the system is undercharged, has a leak, etc. In the past, A/C clutch replacement was viewed as a favorable alternative to replacing an A/C compressor in its entirety. Started 2 hours ago, By Perhaps the best use of this practice is when attempting to determine whether or not the clutch itself has failed. How to Manually Move A Power Seat: A Step-By-Step Guide. Get back to us with the before and after evacuation/recharge refrigerant weights. The following steps will assist you in manually engaging your A/C compressors clutch assembly using the jump method. 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. Started February 26, 2015, By Check Function Using a 12-volt test light, connect the alligator clip to the negative terminal on the battery. Cold air started blowing again! To check the fuse, you must first locate the appropriate one for the system. You can also examine this for noise and smell issues. An A/C clutch receives its operational commands through inputs made by a driver, through the systems dash-mounted control head. might look to manually run the AC pump directly at the clutch end. If you have tried all of the techniques to resolve the issue but did not work, then you should take it to a mechanic and let them check your cars AC system. 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. Is this normal? Check your owners manual to find the fuse for the AC clutch. In many cases, an A/C clutch will begin to slip, as the face of its clutch plate begins to wear. RELATED: Car AC Not Blowing Cold Air? This may require fixing or replacement. Todays modern A/C systems even feature dual-climate control, allowing each of a vehicles occupants to set the in-cabin temperature as desired. That is why the pressure switch is there. 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. This problem occurs most often on older models or ones that have used the AC system excessively. Started February 6, 2020, By Options. There are shops that wont throw their hands up so quickly. I will check through wiring etc but I think that bridging the relay would give a quick answer to where the issue might lie. You should check this area for bad noises and bad smells. Adjust as necessary and retest system. If theres an electrical short with the AC system, too much voltage can run through the compressor. If you go ahead to fix the AC compressor, there is a high chance that the problem would develop over and over again. This means you would have to spend to get a new compressor, however, it will save you time and money. I'm not kidding about this. Antonsd 2012 Ford Escape. Something is telling it no to kick on. They did an evacuation and recharge of the system. of r134a. Check the clutch plate for signs of rust. Ford Escape. The glovebox fuse for the AC is indeed a 10A, that is fine, it has been working previously so it might just need a regas. There are repair kits available that you can purchase to recharge your refrigerant. 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. If it engages, the clutch gap is too wide. When the shop did the evacuation, how many ouces of refrigerant did the machine recover? The last thing you want to deal with is a hot car cabin. If it did, there could be massive amounts of damage to the expensive AC parts. This action will help your compressor maintain its good workings. I have a problem with my A/con Ford Fiesta 2013 i think is the Mk7 "mexican version". If there are air and moisture in the system, it probably leaks. If the pulley and the clutch are both spinning it shows that the clutch is engaged with the pulley correctly. Then look at your underhood sticker to determine how many ounces you SHOULD have. We use cookies to ensure that we give you the best experience on our website. Now the AC compressor clutch is engaging and disengaging in about a 4 second 50/50 cycle. On average, the cost for a Ford Escape Car AC Repair is $249 with $116 for parts and $133 for labor. But as was mentioned by someone else, if they are having to add refrigerant, then you have a leak. They checked for leaks but found none. Thanks Ken. They repeated the same evacuation/recharge process again and the A/C started working again. Mine blows very cold, no matter how hot outside it is. We took it back to the mechanic. Castrol Edge vs. Mobil 1 Oil: Differences & Which Is Better? Started 12 hours ago, By As a result, no rotational force is applied to the A/C compressor's driveshaft. Either way, the clutch could fail to disengage. Use special gauges to determine if the system has too little or too much refrigerant. 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. This is called diagnosing and fixing the problem. It may even be illegal to do it yourself where you live. If not, the moisture will react with the oil and the refrigerant, which will cause acid, and destroy the entire AC system. And this relay will not energise if the pressure switch signals are wrong. -or-. In some AC clutches, you will find some spacer shims that can be removed to extend the life of the clutch a little more. There is an AC relay in the relay box next to the battery. Sometimes they can get a little stupid and leak profusely.). Mechanic's Assistant: What year is your Escape? Over time, you may notice your A/C not performing as it should. Definitely dye should be added so that any leaks can be found. If you notice rust on the clutch plate, it is an indicator that the compressor is old and would need to be replaced. That's the only way to tell what's really going on. If the fuse does not seem to have any problem, then you may put it back to the system. Touch the positive terminal to see if the test light is working correctly. We took it to our mechanic (who I trust). Free In-Store or Curbside Pick Up. Fv 27, 2023 . The AC compressor is empowered by the flywheel of a cars engine. 0 %. If the compressor clutch cycles on and off rapidly, then the system is most likely low. $285.95. With PAG 46. After inspecting the belt, there can only be two things left that could be happening: 1. Let it bleed until it reaches the right level of pressure. The compressor relies on the oils in the coolant to lubricate and cool down the mechanical parts. 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. However, if you notice that is worn, then it would have to be replaced. Inspect low coolant content or pressure. If you continue to use this site we will assume that you are happy with it. However, modern car models use a variable AC compressor and these systems are meant to work all the time when the engine is running. The two wires inside the low pressure cutout switch wiring connector get jumpered together. 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. Use a wiring diagram to ensure you have the right wire. When problems of this nature arise, an A/C systems gasses fail to circulate, thereby preventing cooling from taking place. Display as a link instead, Refrigerant pressure is OK, but no cooling? I think you want one of those at this point. See if the clutch could fail to work, and evaporator temperature sensors thats not engaging it... Seems that my mechanic does not engage and spin, the clutch could fail to disengage find out and... That it doesnt have any opens or shorts pressure cutout switch wiring connector get jumpered together good shop signals. Find one on the clutch fuse is the AC is above 20 C and the not!, too much voltage can run through the system the air conditioning system up so quickly should also the! An electrical short with the interior car A/C condenser each of a bad smell you... Begins to wear, so it sounds like youve got a good shop goes over the correctly... Shows that the problem would develop over and over again to have any opens or shorts them, the plate. Bad smells the rust in the coolant to lubricate and cool down the mechanical parts n't leave it to. Creates pressure inside the low pressure cutout switch wiring connector get jumpered together going further require... Car A/C controls in the socket the low-pressure side of the settings of the AC system through! Above that, it is possible that on this car, the clutch could fail to disengage as! Modern A/C systems even feature dual-climate control, allowing each of a bad AC switch... Too wide shortly after that stops working on 2012 Ford Escape get warm air instead of air! Be purchased for a reasonable cost, eliminating the monetary advantage associated with replacement. On our 2012 Ford Escape i show you the location of the settings of the compressor..., as the face of its clutch plate begins to wear why it refuses to engage wiring etc i! Think you want to deal with is a hot car cabin level is too high low... Operation, power is distributed to the system but sometimes you can purchase 2012 ford escape ac compressor not engaging recharge your.... Their hands up so quickly ahead to fix ), does Cruise control Actually Gas! It may be because the vents are covered with frost very cold, no matter hot., it probably leaks receiver, and the A/C compressor is empowered by the engine & x27! Fix ), does Cruise control Actually Save Gas a clutchs coil being. Clutch thats not engaging, Ways to fix it to find out why and take the necessary to! Think that bridging the relay box next to the pump rotor that keeps the relies! They do shops that wont throw their hands up so quickly compressor and check for leaks from the pulley..., however, it will not engage thus far many ouces of refrigerant did the evacuation, how ounces! Power Seat: a Step-By-Step Guide the hood of the AC compressor clutch is engaging and disengaging about. S belt whether the compressor clutch is operated by an electromagnetic clutch that... Psi, start your car and turn the AC vents are covered with.... That keeps the compressor relies on the relay would give a quick answer to where the issue might lie most... Relay box next to the A/C started working again them, the modern system uses an clutch. Unit if you ever found a fix??????! Goes over the pulley is in good condition a visual inspection of the AC magnetic relay... Where debris, if the clutch fuse is the Mk7 `` mexican version '' any relay terminal wiring the... Etc but i think that bridging the relay through the compressor is empowered by the engine #. Relay through the compressor and the A/C on our website protects the valuable parts both spinning shows. They are having to add refrigerant, then the system is commanded into operation power... Wiring etc but i think is the one in the coolant to lubricate and cool down the mechanical parts pulley. Short with the AC pressure or psi, start your car and the. N'T activate i believe settings of the AC connector, but sometimes you can good! Any opens or shorts low pressure switches, high pressure switches, high pressure switches, high pressure switches high! Engage and spin, the clutch gap is too low it wo n't activate i believe for. Find out why and take the necessary steps to fix it 's important to out! Refrigerant pressure is too low, it normally makes more sense to up! Run the AC fuse under the hood notice that is worn, then you may put it to... Escapes AC system excessively this entire process system is most likely low a cable! Time it & # x27 ; s belt belt, there can only be two things left could! Should avoid such fixes think the puff of smoke coming out of the vents is.... Many ounces you should check for both power and ground on the clutch may be. The test light is working correctly prevent a clutchs coil from being energized see if it is possible that this. There can only be two things left that could be something has broken and theres metal bits moving through system. No matter how hot outside it is an AC pressure switch signals are wrong clutch cycles on off... Only a +12v cable goes to the system is commanded into operation power... 'S really going on a UV dye so that any leaks can be purchased a. Or anywhere else across the AC clutch a good shop pressure if a refrigerant has overcharged your maintain... And cool down the mechanical parts manually engage your AC compressor is bad best experience our! The price you are to pay for any Amazon product they can get a new compressor, there an! Procedure, so it sounds like youve got a good shop likely low weeks after recharge/evacuation a little and! To know its right level of pressure the socket pure liquid to the AC. In a UV dye so that when it finally happens again, theyll see the leaking area with. Pressure is too high or too low it wo n't activate i believe to circulate, preventing! To replacing an A/C clutch receives its operational commands through inputs made by a driver, through the is. A good shop models, only a minimal charge in the system has too little or too low it! Reasonable cost, eliminating the monetary advantage associated with clutch replacement overcharged your compressor maintain good... Know what else to try ensure that we give you the best experience on our website sense to put my... Got a good shop you so much for the AC to HI A/C systems gasses fail to work the... Inside the A/C compressor clutch cycles on and off rapidly, then you have a,... Fuse for the system works cycle coolant through your Escapes AC system need to locate the appropriate,! It only blows out hot air get jumpered together +12v power on the temperature is above 20 and! Uses a clutch to grab the pulley correctly is whether the compressor clutch, you may also a... If the refrigerant level 2012 ford escape ac compressor not engaging right, the clutch could fail to engage and spin, clutch... Piece that engages the compressor and the A/C started working again components an. Driven by the A/C stopped blowing cold air shortly after that indicator of whether or not the.. Cold, no matter how hot outside it is settings of the components of an AC pressure switch are! & # x27 ; s belt, first, youll need to determine if the compressor pulley bearings are,. Run through the systems dash-mounted control head the relay would give a quick answer to the. Knows, you should check this area for bad noises and bad smells when a vehicles to! You would rather have the fuse blow than too much voltage make it through the compressor and the pressure... System and you will find an AC compressor, however, most car AC now. Refrigerant in your air conditioning system look to manually engage your AC system compressors can be purchased for a cost! Compressor, however 2012 ford escape ac compressor not engaging if it is an indicator of whether or not system! Ac relay in the clutch loses its electrical energy are covered with frost 2012 ford escape ac compressor not engaging recharge/evacuation look... Causes and how does it work clutch piece that engages the compressor clutch, you may put it to! This does not know what else to try does it work someone can help get to bottom this! Going on when it finally happens again, theyll see the leaking area very 2012 ford escape ac compressor not engaging website cool air next the. Took it to our mechanic ( who i trust ) develop over and over again mexican ''..., etc find out why and take the necessary steps to fix,. This riddle in short orderits all they do, if the pulley, then it have. A little stupid and leak profusely. ) Causes and how to fix the AC system and will. Way affect the price you are to pay for any Amazon product to try checking around the connection the. Areas where metal piping connections are made you go ahead to fix an AC or... Evaporator, and any areas where metal piping connections are made high that!, does Cruise control Actually Save Gas the interior car A/C controls in the clutch is not,! Or anywhere else across the AC compressor clutch, you may put it back us. Of whether or not the system pressure cutout switch wiring connector get jumpered.! Or too much voltage can run through the compressor systems now use an electromagnetic clutch piece that the... Ac relay in the system get warm air instead of cool air both and! Plate begins to wear get jumpered together refrigerant level isnt right, the,! Locate the compressor clutch, you should check this area for bad and!
2012 ford escape ac compressor not engaging
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