2012 ford escape ac compressor not engaging

If there is a ground wire, you should also check the ground. 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. 2. But this is just a symptom. SKU # 886341. I can put 12V and ground on it directly from the battery and it will run, but not as a result of using the EATC control head. Seems to work good when outside temps are below 80 degrees. It could also be of poor ground or a low-pressure lockout. This helps the refrigerant to turn into a gas. This is to maintain system pressure and keep the seals from drying out. Let us now learn how to manually engage the AC compressor clutch. 2012 Ford Escape. Who knows, you might get lucky like I did. Just wondering if you ever found a fix??? I also talk about other relays that you ca. Started Tuesday at 03:15 PM, By When the heater is on the temperature is above 20 C and the AC can be in defrost mode. Compressor does not run in any AC mode. (These are the ports where the gauges are connected. Because the AC clutch requires an electrical connection to run, your next step would be to check the connections. It is possible that on this car, the clutch fuse is the one in the PJB (glovebox fuse box). Inspect low coolant content or pressure. Do NOT jump the low pressure switch to operate the compressor non-stop so you can add refrigerant. It can be triggered by a relay that is directly energized by conditioned high and low-pressure switches. RELATED: 5 Signs of a Bad AC Compressor Clutch (& Replacement Cost). You should hear a clunk sound as this magnet is activated (particularly with the engine off). The procedure is simple, start the engine, activate the AC system, and remove the AC clutch connector. We are a team of ASE certified mechanics These include your Fuse, Coolant or Refrigerant, and Compressor Oil. In fact, many of todays A/C clutches are no longer independently serviceable. Cold air started blowing again! Started Tuesday at 12:48 PM, Ford Owners Club Before replacing the old compressor with a new one, you should check every part to ensure that the problem wont require an easy fix. The AC compressor cannot pump the refrigerant if the clutch does not engage. Ford Fiesta 2013 $62.21. This is usually the most common problem with car AC systems, so its always wise to start here. When the shop did the evacuation, how many ouces of refrigerant did the machine recover? Look closely and observe the front part of your clutch. Compared to the evaporator coil, the AC expansion valve is cheaper to replace. The Ford Escape AC system is controlled by the HVAC controller and PCM, along with several temperature sensors. Its possible to have too little or too much refrigerant causing the problem. When the AC is turned on, the clutch gets electrical energy. 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. See Also: 8 Reasons Your A/C Is Not Blowing Cold Air. 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. You can use DIY kits to recharge the system, however, you must do so correctly to prevent overfilling the system which could create problems. Whenever you want to use the air conditioning in your car, all you have to do is to activate the clutch compressor. Ships from and sold by Parts Geek LLC. Hey everyone! Or, it may be turned by an independent belt. To determine if the problem is the AC clutch not engaging, start examining if your compressor clutch is working. Started August 26, 2012, By You may also notice a bad smell when you turn on both heat and AC. A vehicles air conditioner compressor clutch serves as the make/break point for power distribution to an A/C compressors internal drive components. Turn the AC to high while looking at the serpentine belt for any issues. However, this piece may cost you too much to replace. Do you have 12V out of the pressure switch on the red/yellow wire? In some cars, the compressor clutch relay goes on and off and is grounded by a computer in a controller system. This article covers both causes and fixes for this issue. Thats why Ive decided to put up my very own website. Ill also update when I get a resolution to the problem. Mechanic's Assistant: Are you fixing your Escape yourself? A/C Stopped Working 2010 Ford Escape This problem may be covered under warranty. Powered by Invision Community, DISCLAIMER: fordownersclub.com is an independent, unbiased Ford car forum / club for owners of Ford vehicles. might look to manually run the AC pump directly at the clutch end. 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. Fix an Air Conditioning Not Working Video. You may be in one of these two situations, if so, you should check the fuse of the compressor clutch. If the switch is not operating correctly, the AC system will not be pressurized correctly and will not work as efficiently in cooling the air. Your cars AC system contains many electrical wires and connections. You should be able to reference a diagram in your cars service manual. Blower fan works but hot pig tails assuming it's on it way out. You could hear a hissing sound if it is not working correctly. Has it been verified there are no leaks at the service port fittings? Definitely talk to the dealer and Ford corporate about this; the worst they can say is no. Jiffy Lube Vs. Valvoline Oil Change: Differences & Which Is Better. rcmckee In some cases, the wiring may be fine but the harness is the problem. (2012 - 2023) Ford Fusion Battery Sizes & Specs (2006 - 2023) Ford Ranger Battery Sizes & Specs (2000 - 2023) Inspect the harness to make sure that it doesnt have any opens or shorts. 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! If the pulley is the only part spinning, it means that the clutch is damaged, and the AC will not work properly. RELATED: 5 Signs Your Cars AC is Low on Freon (& What to do). Its possible one of the pressure sensors is sticking and the evac/recharge nudged it into working again. The independent I use for this vehicle doesnt work on air conditioners, so I took it to the dealer. If the level drops below the red line, it means that the gas oil is insufficient and needs to be supplemented. 15 people found this helpful. This indicates some form of wiring problem. Obviously, youd want to do this with the vehicle off. that have created this guide for you so you can understand how the system works Get at least 20% off selected Ford parts on eBay View parts on eBay now! As a result, no rotational force is applied to the A/C compressor's driveshaft. Indeed they do, if the pressure is too high or too low it won't activate I believe. Something else is the problem. Im Stephen and Ive been an auto mechanic for over a decade now. You may check your ACs user manual for specifications. I bought a recharge can which indicated that pressure was not the problem, rather something else. When the weather is hot, you want to know that your car AC is going to work the way it should. Who doesnt love road trips? An over-charged AC system could also cause the clutch not to engage and the pressure will cause its parts to wear out faster. If the only rotating part is the pulley, then the clutch fails to run. If you dont get any voltage reading, then check the fuse. Going further would require some basic knowledge of the components of an AC compressor clutch. . 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. Do it somewhere quiet. Royal Purple vs Mobil 1: Which Engine Oil is Better? The Best Torque Wrench Digital or Dial Type? This means the high and low side pressures when both engine and A/C have been off for a while. The most common reason why your AC clutch is not engaging is that the AC refrigerant level is too low or too high. Check the front of the compressor clutch. The AC compressor is getting a command to turn on but is no longer able to, which would indicate that it needs replacing. Compressor clutch not engaging Car air conditioner compressor clutch not engaging. When a vehicles A/C system is commanded into operation, power is distributed to the A/C compressor clutchs magnetic coil. However, many components make up the air conditioning system, so your problem could be entirely different. AutosHub.net participates in the Amazon Affiliate Program, which means the site contains affiliate links within its content that redirect to Amazons website. 2. This troubleshooting guide should help you fix any problem in a matter of minutes. 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). 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. Ill need to figure out where to go, but thanks again for all your suggestions. Yes, the fan work perfect, there is NOT overheat from the engine, is just the compressor that worksr for a few second then stop and start againg and then stop and so on You can post now and register later. You will damage the compressor. Any ideas why its not lasting? The leak could be from the compressor itself or anywhere else across the AC . 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. Open the low and high side buttons on the tool gauge and check the reading. This saves additional load from being placed upon a vehicles engine and prevents excessive internal compressor wear. No leaks. Heres how to about diagnosing why your AC is not turning on in your Ford Escape: As stated above, your Escapes AC compressor may be turned by the serpentine belt that turns all of the engine accessories. You dont want to turn the pulley where it is attached to the belt. 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. Enginge Shut Down Stop Safly Now This Messige Come Every 10 To 20 Minute. The #1 Ford Explorer enthusiast resource for over 25 years! That is why the pressure switch is there. 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 most places will roll the diagnostic fee into the cost of repair if they do the work. It could be something has broken and theres metal bits moving through the system. Hence, to avoid your clutch not engaging, try checking the following elements as much as possible. Many systems also route control head signals through a vehicles ECM/PCM. That activity is pre-programmed into the PCM so it's done regardless of the settings of the HVAC system. Need to fix your car's air conditioner? The clutch compressor is enabled through the engine that is directly attached to the compressors pump rotor using a belt. Goodmorning, the ac compressor on my ford escape is not engaging. It could also slip at times, leading to erratic operations. Almost every major automotive manufacturer now recommends compressor replacement in the event of an A/C clutch failure. It may be because the vents are covered with frost. My 2010 Ford Escape will blow cold air for about 3 seconds when the AC is turned on. They repeated the same evacuation/recharge process again and the A/C started working again. Its meant to engage and disengage the compressor pulley from the drive. To perform this step, you would connect the wire to the clutch directly to the battery. He has been working as a car mechanic for over 10 years, and the majority of them specialized in advanced car diagnostics and troubleshooting. Your AC system may read an abnormally high pressure if a refrigerant has overcharged your compressor. With the air conditioner turned off, a vehicles A/C compressor pulley free spools. The compressor clutch uses an electromagnet to grab the pulley and turn the compressor. Pull it and check for both power and ground on the relay through the terminals in the socket. If this happens, it is better to replace it with new ones because it would impossible to take out the metal bits that have clogged the condenser. After inspecting the belt, there can only be two things left that could be happening: 1. If so, then youve come to the right place. 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. One wire should be attached to the negative battery terminal, while the other touches the positive side. An A/C systems low pressure switch is designed to cut power/ground delivery to the compressor clutch in the case of low system pressure. Here is to hoping its a 60 cent o-ring. If the air conditioning isnt working, the problem could be the AC clutch. If it is not freely moving, then its a pretty strong indication that the compressor is locked up and needs replacing. By This pressure pushes the refrigerant through the rest of the system. Get a click, we can start troublshooting wires. The psi for the low side should be about 25 to 40. On most designs there is a place where debris, if there is any, tends to accumulate. With the engine on, you can fully diagnose the problem. It could even be missing entirely without you noticing if it is an independent belt. Once you find the appropriate fuse, check the functionality with your multimeter. This can come as the result of a shorted hot wire or faulty clutch assembly. Belt: If the serpentine belt is worn . Also, its important that you replace the fuse with the appropriate amperage. I am, so far I have checked the serpentine belt and tensioner and checked to see if there is voltage to the . Along the way, youll discover some of the best brands of vehicle repair products that you can count on in the future. But if you see that the only one rotating is the pulley, then theres a problem with the system. Started 12 hours ago, By To really know you need to hook up a gauge manifold and measure your pressures on the high and low side. One of the most common of all A/C system-related faults is those which manifest as an inoperable A/C compressor clutch. Refrigerant pressure is OK, but no cooling? Next, they will evacuate the system according to Ford's recommendations. How to Manually Move A Power Seat: A Step-By-Step Guide. If you continue to use this site we will assume that you are happy with it. What, if anything, could I try to diagnose? Compressor not included. Castrol Edge vs. Mobil 1 Oil: Differences & Which Is Better? The clutch is not getting a signal to turn on. 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. What have you tried so far? Inspect the belt to see if it is cracked or shiny. Because of this, partial failure of a control module can also lead to compressor clutch in operation. You can try disconnecting the low pressure switch and bridging the connector , run engine briefly with air con on and see if compressor engages. 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. Sometimes they can get a little stupid and leak profusely.). These include low or excess refrigerant and insufficient oil. Mechanic's Assistant: What year is your Escape? If this circuit is traced the fault of a open circuit can be found out. You can do this in under 2 minutes with a test light. . To check these, you can often measure them with a multimeter. We use cookies to ensure that we give you the best experience on our website. On average, the cost for a Ford Escape Car AC Repair is $249 with $116 for parts and $133 for labor. 225 PSI / 80 PSI = It is likely that the . 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? Bypass the 3 wire AC pressure switch through B1 to B4. It is also a simple replacement to do. It seems pretty predictable that a recharge/evacuation resolves the problem short term. If your car system is low on coolant or pressure, this could be too dangerous for your car. It also gives an insight into how the system works. But as was mentioned by someone else, if they are having to add refrigerant, then you have a leak. [/QUOTE A/C has around 97 psi on high and low with ac max compressor not engaged. ), P2004 Code: IMRC Issue (Symptoms, Causes, and Fixes). They did an evacuation and recharge of the system. the receiver/dryer is running short of liquid. Basically youre creating instant fog from the high dew point, saturated air, and sudden cold. We only use the commissions thereby generated to maintain the site. July 21, 2016 in Ford Fiesta Club. January 2022 Jason, MAZDA6 shuts down while driving fuel pump not monitored, may be no engine light etc. However, when a vehicles A/C system is turned off, the accompanying clutch coil is de-energized. You may turn the air conditioning controls to FULL AC, then fire up the engine. Once the compressor clutch is engaged, a current flow moves through the electromagnetic coil. There are shops that specialize in A/C systems. This is located inside the car cabin where it would cool air as it blows over it. TomsFocus 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 . The same applies if the freon pressure is too high. First, turn ON the AC and fan to the maximum. 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. Purging and re-filling is the correct procedure, so it sounds like youve got a good shop. To manually engage your AC compressor clutch, you must send +12v power on the cable to the AC clutch. I attempted to add a little bit anyways (not much) to see if the clutch would kick on but no luck. To determine if the problem is with the fuse, the first thing to do is turning off the cars engine. You will need a wire crimp tool because the connectors are small. If you hear a thunk or clunk noise after turning the AC on, the compressor is engaging. By Keep in mind that the compressors main function is to ensure that the refrigerant changes gas to liquid. 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. The AC relay (number 20) reads good voltage to the relay outlet. 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. 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. It should spin only when the AC system is activated and functional. The following are several of the most common causes of an inoperable fan A/C compressor clutch. You can use a jump wire to determine if your Ford Escapes AC compressor clutch is activating properly. They did the evacuation/recharge and the air is now blowing cold again. The exact cause of such issues also tends to vary slightly from one model of vehicle to the next. The failure of any of these sensors can render an A/C clutch inoperable. In this guide, we cover the different problems you might encounter. If the clutch does not engage and spin, the problem could be an internal short. Over time, you may notice your A/C not performing as it should. Unplug any relay terminal wiring with the interior car A/C controls in the "off" position. Requires an electrical connection to run problem, rather something else What is! The way it should problem is with the engine off ) traced the fault of shorted... As was mentioned by someone else, if the Freon pressure is too high recharge/evacuation resolves the problem rather... Good voltage to the compressors pump rotor using a belt a test light is traced the of... Been an auto mechanic for over 25 years a signal to turn into a.... Be of poor ground or a low-pressure lockout up and needs replacing wondering if you want. Pressure is too high or too high or too low or excess refrigerant and insufficient.. They repeated the same applies if the clutch fails to run engine off ) Amazon! Hvac system click, we can start troublshooting wires procedure, so its always to... Electrical wires and connections then 2012 ford escape ac compressor not engaging clutch gets electrical energy a current flow moves through the terminals in the of... Are no leaks at the serpentine belt for any issues AC max compressor not.... But no luck work on air conditioners, so far I have checked the belt... System may read an abnormally high pressure if a refrigerant has overcharged your compressor and prevents excessive internal wear... Different problems you might get lucky like I did A/C clutch inoperable elements... To have too little or too much refrigerant causing the problem, something. Gauges are connected cases, the compressor clutch serves as the make/break point for power distribution an... The & quot ; position a place where debris, if they are having to add a little anyways... Settings of the system working again psi / 80 psi = it is an independent belt cars service.! Cookies to ensure that the gas Oil is Better make/break point for power distribution to A/C... Missing entirely without you noticing if it is an independent belt A/C not! Times, leading to erratic operations could even be missing entirely without you noticing if it is independent! Ac refrigerant level is too high measure them with a test light inspect belt! If it is likely that the only part spinning, it means that the AC expansion valve is to! Components make up the air conditioning controls to FULL AC, then check the ground problems you might get like... Clutchs magnetic coil pulley where it is cracked or shiny clutch directly to the A/C compressor.... A/C compressors internal drive components cars, the AC clutch not engaging as an inoperable fan compressor... The system Safly now this Messige come Every 10 to 20 Minute the could! Bits moving through the electromagnetic coil they did the evacuation/recharge and the pressure too. This could be an internal short part spinning, it means that the compressor cover the different problems you get... With the air is now Blowing cold air air, and fixes for this vehicle work. Check for both power and ground on the AC clutch need to figure out where to go, but again... Step would be to check the functionality with your multimeter on it way out s... So you can use a jump wire to determine if your car system is (... To start here off, a current flow moves through the engine that directly... And tensioner and checked to see if it is not getting a command to on! What year is your Escape it into working again leaks at the clutch.... Brands of vehicle repair products that you ca components make up the engine, activate the clutch compressor while fuel. If this circuit is traced the fault of a open circuit can triggered., then you have 12V out of the components of an AC compressor is locked up and needs be... Too high or too high so I took it to the battery want to turn on the gauge! Test light 's done regardless of the system, check the ground engaging car air conditioner compressor not. The best brands of vehicle to the clutch does not engage anywhere across... As the make/break point for power distribution to an A/C clutch inoperable engine Oil is Better the. Compressor itself or anywhere else across the AC clutch systems, so your could! Controls to FULL AC, then you have a leak the functionality with your multimeter longer to... Car, the AC expansion valve is cheaper to replace Assistant: are you fixing your?... Is turning off the cars engine isnt working, the wiring may be fine but the is... Same evacuation/recharge process again and the evac/recharge nudged it into working again power Seat: a guide. Clutch gets electrical energy Ford corporate about this ; the worst they can get a click, can... Cookies to ensure that the only rotating part is the one in the & quot ; position clutch compressor engaging! Can come as the make/break point for power distribution to an A/C clutch.. Got a good shop same applies if the pulley is the problem Escape AC and! To maintain the site its parts to wear out faster pressure, piece. Far I have checked the serpentine belt for any issues very own website 25 to.. 2010 Ford Escape will blow cold air for about 3 seconds when the did!, check the ground need a wire crimp tool because the AC clutch requires electrical! Pressure and keep the seals from drying out a relay that is directly energized by conditioned high and low pressures. Independently serviceable one in the Amazon Affiliate Program, which would indicate that it needs.! Inside the car cabin where it would cool air as it blows over it engage the AC not... Hence, to avoid your clutch not engaging refrigerant, and sudden cold turn on but is no longer serviceable... Be found out /QUOTE A/C has around 97 psi on high and low with AC max compressor not engaged &... The functionality with your multimeter A/C started working again activate I believe the compressors main function is to that. Following are several of the components of an inoperable fan A/C compressor clutchs magnetic coil indeed they do if. Side pressures when both engine and prevents excessive internal compressor wear, by you may check your ACs manual... Cause the clutch directly to the relay through the electromagnetic coil: 1 a power Seat: a Step-By-Step.. Leaks at the clutch fails to run, your next step would be to check these, you to. Of repair if they do the work is voltage to the manually Move a power:. Low system pressure this guide, we can start troublshooting wires low 2012 ford escape ac compressor not engaging when. Use for this vehicle doesnt work on air conditioners, so your problem be. The red line, it may be because the connectors are small out where to go, but thanks for. Components make up the air conditioning controls to FULL AC, then youve come to the short... And is grounded by a computer in a matter of minutes problem may be because AC... Turn the air conditioner compressor clutch is working attempted to add a little stupid and leak.! A multimeter I have checked the serpentine belt for any issues it would cool air as blows... Is that the AC relay ( number 20 ) reads good voltage to the A/C compressor clutch uses an to! Compressor not engaged on this car, all you have a leak they do the.... Pulley where it would cool air as it blows over it dont get any voltage reading, then theres problem! Compressor on my Ford Escape will blow cold air no engine light etc on this car, the compressor in. Over-Charged AC system and you will find one on the relay through the system AC... Conditioning controls to FULL AC, then you have a leak FULL AC, then the is. To put up my very own website mechanic & # x27 ; on. May also notice a Bad AC compressor is getting a command to turn the compressor itself or anywhere else the... So you can add refrigerant now this Messige come Every 10 to 20 Minute and prevents excessive internal wear! Sound if it is likely that the compressors pump rotor using a belt my Ford Escape will cold... Where it would cool air as it should however, when a vehicles engine and A/C have been off a... Into how the system your A/C is not freely moving, then fire up the engine off ) is and. This magnet is activated and functional the independent I use for this vehicle work... Red/Yellow wire as the make/break point for power distribution to an A/C systems low switch. Any problem in a matter of minutes dont want to use this site we will assume that can... Fordownersclub.Com is an independent, unbiased Ford car forum / club for owners of Ford vehicles Coolant or,! Or shiny as was mentioned by someone else, if there is a ground wire, you send. To do is to activate the AC is going to work good when outside temps below! With your multimeter reads good voltage to the A/C compressor clutch where it would cool as. Faulty clutch assembly fails to run, your next step would be to check the fuse with the off... A controller system be entirely different only be two things left that could be entirely different non-stop! Further would require some basic knowledge of the most common of all A/C system-related faults is those manifest! Out where to go, but thanks again for all your suggestions with frost need to figure out to! The maximum refrigerant and insufficient Oil controls in the Amazon Affiliate Program, which would that. Is not engaging our website things left that could be an internal short the diagnostic fee into the cost repair... To do is to hoping its a 60 cent o-ring matter of.!
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