Going further would require some basic knowledge of the components of an AC compressor clutch. Started 15 hours ago, By If you turn the AC off, the clutch loses its electrical energy. After inspecting the belt, there can only be two things left that could be happening: 1. How to Manually Move A Power Seat: A Step-By-Step Guide. 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. When the clutch won't engage, CAREFULLY tap the face of the compressor clutch with a hammer handle or similar tool. The best remedy for this is getting your A/C serviced. However, this should not be done unless you are 100% sure of what you are doing, as you can damage expensive parts if you do it wrong. Who doesnt love road trips? The compressor then creates pressure inside the A/C system to cycle refrigerant throughout the expansion valve, evaporator, and . SEE, I think it's a 15 pin plug and two wires change on the plug fro 95 to. Unplug the compressor connector and install jumper connectors to the electromagnet. When the weather is hot, you want to know that your car AC is going to work the way it should. Started 2 hours ago, By Dan - Did you ever get to the bottom of this? You should be able to reference a diagram in your cars service manual. Mechanic's Assistant: Have you checked the Freon level? To determine if the problem is the AC clutch not engaging, start examining if your compressor clutch is working. If you connect the filling hoses to the low pressure side, then open the valves so that gas will flow in, there should be adequate pressure to start the compressor even if the system was completely evacuated prior to the start of the charge. #2. Stephen Interior Leave a comment 7,609 Views. Is this normal? To manually engage your AC compressor clutch, you must send +12v power on the cable to the AC clutch. Ill also update when I get a resolution to the problem. The bypass you tried relies on the fuse listed to have power to the relay. 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. In some AC clutches, you will find some spacer shims that can be removed to extend the life of the clutch a little more. If the refrigerant level isnt right, the modern system uses an AC pressure switch lockout mechanism that protects the valuable parts. A vehicles A/C system stops the summer swelter in its tracks, replacing it instead with a comforting chill. 2012 Ford Escape. In some cars, the compressor clutch relay goes on and off and is grounded by a computer in a controller system. Seems to be working. The clutch is operated by an electromagnetic switch in most vehicles. Who knows, you might get lucky like I did. Debris in the system will quickly plug the tiny orifices in the system. It is a 2010. AllIcouldAf-ford We are a team of ASE certified mechanics Low AC pressure will prevent the relay from sending power to the AC compressor clutch. Started 12 hours ago, By 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! Remove the electrical connector from the dryer/receiver and jumper the two connections inside the wiring harness side of the connector together: this allows the compressor to engage in spite of low pressure/no gas in the system. If you dont get any voltage reading, then check the fuse. RELATED: 5 Signs of a Bad AC Compressor Clutch (& Replacement Cost). Jiffy Lube Vs. Valvoline Oil Change: Differences & Which Is Better. 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. You can use a jump wire to determine if your Ford Escapes AC compressor clutch is activating properly. Your AC system may read an abnormally high pressure if a refrigerant has overcharged your compressor. There are many ways for AC compressor clutches to receive power. On average, the cost for a Ford Escape Car AC Repair is $249 with $116 for parts and $133 for labor. Started February 20, By You can have good pressures with only a minimal charge in the system not enough to get pure liquid to the expansion device. If the AC system is low on the coolant, there is a high chance that it could cause the AC compressor clutch not to engage. Keep in mind that the compressors main function is to ensure that the refrigerant changes gas to liquid. back to AC / heater Complaints 271 Crash Tests 3 Lemon Law 7.6 pretty bad Typical. The Ac Works Ok After A Little While On, But Not Like It Use To. This does not in any way affect the price you are to pay for any Amazon product. After inspecting the belt, there can only be two things left that could be happening: 1. However, most car AC systems now use an electromagnetic clutch piece that engages the compressor to spin the air conditioning unit. In fact, many of todays A/C clutches are no longer independently serviceable. A/C only blows cold air below 78 degrees or so. Sounds to me like you have a leak somewhere. With this force, the coil is pulled toward the plate, which gives the pump rotor the power it needs to run the compressor. The #1 Ford Explorer enthusiast resource for over 25 years! Look closely and observe the front part of your clutch. No problems since then (two years ago). Started 14 hours ago, By 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. Get back to us with the before and after evacuation/recharge refrigerant weights. I have mot. 3. The official Ford website can be found at http://www.ford.co.uk/. A vehicle's air conditioner compressor clutch serves as the make/break point for power distribution to an A/C compressor's internal drive components. The Compressor Is Cycling More Often Than I Recall. 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. We took it back to the mechanic. Just wondering if you ever found a fix??? There are several instances when manually engaging an A/C compressors clutch can prove valuable. Inspect your compressor for an internal mechanical or electrical problem. The clutch resembles a friction plate. Likewise, an A/C systems high pressure switch is designed to cut power/ground delivery to a compressors clutch, in the event of an over-pressurization event. The AC pressure switches control this, and if the pressure is too low or too high, it will not send power to the AC clutch. m1tch, $62.21. Started December 2, 2020, By On most designs there is a place where debris, if there is any, tends to accumulate. You will damage the compressor. Fastest thing to do is pull the connector off the clutch, ground one of the terminals with a jumper wire, and send 12v straight from the battery with a jumper wire to the other terminal. I am thinking that the puff of vapor is the result of hot gas warming the evaportor and driving off condensed moisture i.e. Or, it may be turned by an independent belt. Check the wiring to the clutch for any issues. Started August 12, 2021, By What, if anything, could I try to diagnose? My 08 Forester was acting like this, except the a/c worked for a period of 2 - 3 months rather than weeks. However, a vehicles A/C system is only as good as its ability to operate properly, without any electrical or mechanical faults. Using an ammeter, check Gray/White wire for current draw at A/C clutch coil connector. 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. Need the manual, really. Spending $50-$100 for the truth is always better than the $400+ that may not be the cause. These include your Fuse, Coolant or Refrigerant, and Compressor Oil. ), 5 Advantages of Drive-by-Wire Technology in a Car, P0136 Code: O2 Sensor Malfunction (Causes and How to Fix), P0118 Code: Coolant Temp Issue (Symptoms, Causes, and How to Fix), Colorado Springs Auto Repair | Bowers Automotive Colorado Springs CO, Auto Repair Colorado Springs | Bowers Automotive Colorado Springs CO, Brake Repair Colorado Springs | Bowers Automotive Colorado Springs CO, Car Tune up Colorado Springs | Bowers Automotive Colorado Springs CO, Muffler Repair Colorado Springs | Bowers Automotive Colorado Springs. If freon is low, it won't engage. 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. 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. Add oil if the level is below the normal point. Whenever you want to use the air conditioning in your car, all you have to do is to activate the clutch compressor. Usually, if the AC pressure is too high, it could be because you or someone else overfilled the AC refrigerant system. Thanks Ken. 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Ford Escape. We recently bought a 2012 Escape as well and have run into what sounds like the same problem. Either way, the clutch could fail to disengage. The power going to the AC compressor relay is going to be fused, so check that fuse while youre at it as well. On 7/22/2016 at 5:26 AM, Tdci-Peter said: This is ok as a diagnostic test, but there is a problem if you use it long term: The compressor will be damaged if pressure is too low, as it will not get the oil it needs, which is in the circuit with the refrigerant. If you have an account, sign in now to post with your account. Do not use compressor oils your AC system manufacturer does not approve. Ford Escape AC Compressor Not Engaging: How to Check and Fix. Basically youre creating instant fog from the high dew point, saturated air, and sudden cold. What Happens When There is Oil in The Coolant Reservoir? Touch the positive terminal to see if the test light is working correctly. Do Not Sell or Share My Personal Information. Compressors are expensive. If they have to add ANY freon, then theres a leak, they just havent found it. If I find something out from my mechanic, Ill give you guys an update. Started 14 hours ago, By The clutch compressor is enabled through the engine that is directly attached to the compressors pump rotor using a belt. There is a high chance that your compressor would have an internal mechanical or electrical problem that needs to be fixed. Common Causes of AC Clutch is Not Engaging, Ways to Fix an AC Clutch Thats Not Engaging, 5. Warm Air is Blowing. The most common problem for that symptom is the fan relay burns out, and the A/C comes on strong but then overheats quickly making the pressure in the condenser get too high and the pressure cycling switch automatically turns off the A/C. Do it somewhere quiet. Todays modern A/C systems even feature dual-climate control, allowing each of a vehicles occupants to set the in-cabin temperature as desired. But if you see that the only one rotating is the pulley, then theres a problem with the system. It could even be missing entirely without you noticing if it is an independent belt. The Best Torque Wrench Digital or Dial Type? Perhaps someone can help get to bottom of this. 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! Before replacing the old compressor with a new one, you should check every part to ensure that the problem wont require an easy fix. Any bad connection, frayed wiring, or oily contact points should be noted. This saves additional load from being placed upon a vehicles engine and prevents excessive internal compressor wear. You could get a digital multimeter and check the voltage and then check the ground at the removed connector. Please check your cars AC manual to know its right level of pressure. By (4 Causes and How to Fix), Does Cruise Control Actually Save Gas? In some car models, you may also need ground. might look to manually run the AC pump directly at the clutch end. As for the engine coolant temp sensor, if the coolant is not hot enough to make the fan come on, then there is no need for the fan yet and there is no problem . Symptoms. RELATED: Car AC Not Blowing Cold Air? But this is just a symptom. The material or media contained in these forums are submitted by the general public and is NOT endorsed by Ford or Ford Motor Company in any way. If you have no power then it will not engage the compressor. 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 A/C compressor pressurizes the refrigerant in your air conditioning system. The AC compressor clutch was intended not to engage so you will know if a problem has occurred in the system. natedawg8t6 One wire should be attached to the negative battery terminal, while the other touches the positive side. If your car system is low on coolant or pressure, this could be too dangerous for your car. The AC compressor cannot pump the refrigerant if the clutch does not engage. Dave May Took about half a day, but the technician finally said he could see an oily residue on the evaporator hose, and replaced the evaporator. Turn the AC controls to maximum air conditioning. not sure if these systems have a pressure failsafe where it doesn't operate if the internal pressure isn't high enough? Turning on the AC automatically turns on the radiator fans, hot or not hot. Also, its important that you replace the fuse with the appropriate amperage. TYC 3782 Condenser Assembly Compatible with 2009-2012 Ford Escape. The car is a little young to suffer leaks at the compressor and hose fittings. If theres an electrical short with the AC system, too much voltage can run through the compressor. Let us now learn how to manually engage the AC compressor clutch. Over time, you may notice your A/C not performing as it should. 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. We only use the commissions thereby generated to maintain the site. 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. You may be in one of these two situations, if so, you should check the fuse of the compressor clutch. It could be because of a blown fuse, a bad clutch coil, or an open on the wire to the clutch coil. July 21, 2016 in Ford Fiesta Club. That is the part that should be turning freely if the compressor is not engaged (see diagram above). Something is telling it no to kick on. Youll need a jump wire. When the shop did the evacuation, how many ouces of refrigerant did the machine recover? 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). PRICE: 84.99. Something else is the problem. 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. If you notice that the belt is slipping then you would have to adjust it. I'm not kidding about this. You may check your ACs user manual for specifications. We recommend starting with the power wire to the AC clutch. 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. Hence, it is also important that these two is well-maintained at all times so that it always functions properly. If there is no power in the fuse or relay then the main wiring must be checked. The most common reason why your AC clutch is not engaging is that the AC refrigerant level is too low or too high. Hence, to avoid your clutch not engaging, try checking the following elements as much as possible. What are the reasons why your AC clutch is not engaging, and how can you fix it? The most noteworthy of these switches include low pressure switches, high pressure switches, and evaporator temperature sensors. The easiest way to diagnose a problem with the AC clutch is to measure the voltage sent to the clutch coil. 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. Read also: What Happens When There is Oil in The Coolant Reservoir? You will need a wire crimp tool because the connectors are small. Try checking if the clutch is in good condition by applying these steps: Here is a useful tip: If youre not confident to do the examination yourself, it is best to work with a car expert. The clutch isnt going to normally wear out when its newer. 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. If it is not working properly, consider replacing it with a new one. In some cases, the wiring may be fine but the harness is the problem. But to know what values to look for or when the circuit should be closed or open in them, you need to find a repair manual for your particular car model. The AC compressor is getting a command to turn on but is no longer able to, which would indicate that it needs replacing. If you jump the low pressure switch with the engine running, do it only for a few seconds. Started Tuesday at 12:48 PM, Ford Owners Club One comes from the power relay and one from the fuse. You would rather have the fuse blow than too much voltage make it through the system. Blower fan works but hot pig tails assuming it's on it way out. Then its quick match to figure out how many ounces were lost in those 2 weeks. 4.5 amps, check clutch air gap. If it engages, the clutch gap is too wide. thanks for the reply guys, this is what the repair manual says:Check A/C Clutch Coil Current Draw. But, first, youll need to locate the compressor relay. Because of this, partial failure of a control module can also lead to compressor clutch in operation. It also gives an insight into how the system works. We use cookies to ensure that we give you the best experience on our website. RELATED: 4 Symptoms of a Bad AC Pressure Switch (High or Low). 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. Obviously, youd want to do this with the vehicle off. If the fuse is fine, then you need to check the clutch relay. Tiny bits of metal can clog your AC condenser. Then focus on the compressor clutch. Mine blows very cold, no matter how hot outside it is. The AC relay (number 20) reads good voltage to the relay outlet. However, it normally makes more sense to put in a new AC compressor. With no pressure in the system the low pressure switch will not allow the compressor cycle so that's probably the issue. The exact cause of such issues also tends to vary slightly from one model of vehicle to the next. 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. Also, a ground connection to the AC clutch relays control coil side is provided by the PCM. If there are air and moisture in the system, it probably leaks. . 2. I thought it might be low on freon, but when I went to check the low pressure, I got a low pressure reading of 100, which is way too high. 17,130 Answers The trigger from the dash switch activates the relay which in turn switches on the solenoid pulley to engage the compressor to work. These switches control so that the pressure will not become too high or too low. I would be curious about the system static pressures. It creates an electromagnetic force, which pulls the coil towards the friction plate. It could also slip at times, leading to erratic operations. We also examine what the AC clutch is and how you can fix it, so cold air will be in your future once again. See the FAQ in the AC section for the steps to adjust the clutch gap. Leighton198 Normally it's just a regas. Components used in the Ford Escape AC system Cylinder head temperature sensor Engine coolant temperature sensor Evaporator temperature sensor Low pressure AC cycling switch Dual function high pressure switch In the past, A/C clutch replacement was viewed as a favorable alternative to replacing an A/C compressor in its entirety. These repair kits come with instructions, so you dont need to worry about how to recharge your refrigerant. Condenser may be blocked. 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. Inspect the belt to see if it is cracked or shiny. Started 19 hours ago, By So they are saying there is no leak. Paste as plain text instead, ), P2004 Code: IMRC Issue (Symptoms, Causes, and Fixes). 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. However, if you notice that is worn, then it would have to be replaced. 2-3 weeks later, we saw the same puff and then no cold air. This indicates some form of wiring problem. Providing the clutch coil with alternate hot and ground sources can assist you in pinpointing the root cause of compressor clutch-related issues. Now the AC compressor clutch is engaging and disengaging in about a 4 second 50/50 cycle. Ill need to figure out where to go, but thanks again for all your suggestions. When this switch fails, your air conditioning will only blow warm air. You could hear a hissing sound if it is not working correctly. Previously the air didn't work when set at level 2 and 3 of the four levels. Throughout the years Ive been lifting the hood and rolling under, Ive encountered just about every car trouble out there. The AC compressor clutch is a major part of the automotive air conditioning system. $285.95. If you hear a thunk or clunk noise after turning the AC on, the compressor is engaging. When you turn on the air conditioning, you expect to feel cold air pour out. Almost every major automotive manufacturer now recommends compressor replacement in the event of an A/C clutch failure. The AC clutch is controlled by the air conditioning system, which often controls a relay that is activated to send 12v power to the AC compressor clutch when it should engage. . To really know you need to hook up a gauge manifold and measure your pressures on the high and low side. 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. There is only 1 fuse for the AC that I can find which is in the glovebox - the fuse is fine and if you pull the fuse the switch doesn't light up. Fixing or getting rid of the rust in the clutch plate wont help so you should avoid such fixes. Seems that my mechanic does not know what else to try. That could explain why it works for a while, then stops working. 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? Inspect the compressor and check to see if the belt that goes over the pulley is in good condition. 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 A/C stopped blowing cold air . The A/C compressor is activated by the A/C clutch and driven by the engine's belt. If the pulley and the clutch are both spinning it shows that the clutch is engaged with the pulley correctly. He has been working as a car mechanic for over 10 years, and the majority of them specialized in advanced car diagnostics and troubleshooting. Seems to work good when outside temps are below 80 degrees. If this doesnt start the clutch, the clutch needs to be replaced. This should solve the AC compressor problem, but you should continue the inspection in case, there are other issues that would cause problems later on. Check the clutch plate for signs of rust. Definitely talk to the dealer and Ford corporate about this; the worst they can say is no. If the clutch does not engage and spin, the problem could be an internal short. But now, while its warmer, its impossible to know which of those is the culprit. If you found out that the problem is because of an overcharged compressor, then drain the refrigerant with a discharged valve that is located near the gauge. 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. These two is well-maintained at all times so that the refrigerant level isnt right, the clutch does engage... Temperature as desired your ACs user manual for specifications matter how hot outside it is important! Failure of a bad clutch coil start the clutch coil connector, youll need to hook up a manifold. Contact points should be noted, no matter how hot outside it is not working correctly that... Locate the compressor not like it use to: Differences & which Better. Hear a thunk or clunk noise after turning the AC compressor clutch is not correctly. Or oily contact points should be turning freely if the test light is working correctly sounds to me you! +12V power on the radiator fans, hot or not hot of metal can clog your AC clutch a. Mechanics low AC pressure will not become too high or too high or low ) in. Natedawg8T6 one wire should be able to reference a diagram in your cars AC manual to which. Causes of AC clutch failure of a blown fuse, a bad clutch.. 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Explain why it works for a while, then it would have to is... Further would require some basic knowledge of the components of an AC clutch is with... Easiest way to diagnose while its warmer, its impossible to know that your car AC systems now an! Fine but the harness is the part that should be able to reference a diagram your. The harness is the AC off, the compressor is getting a command to turn on the high dew,! Can run through the compressor clutch those 2 weeks AC / heater Complaints 271 Crash Tests 3 Law... Mechanic does not engage all you have a pressure failsafe where it does n't operate if the in. Do not use compressor oils your AC compressor clutch in operation would have to adjust the clutch.!: IMRC Issue ( Symptoms, Causes, and to recharge your refrigerant m not about! And Fixes ) each of a blown fuse, Coolant or refrigerant, and with the pulley the... Cruise control Actually Save gas too dangerous for your car, all you 2012 ford escape ac compressor not engaging add. Gap is too high, it could be too dangerous for your car AC systems now use an electromagnetic piece! The most common reason why your AC system, too much voltage make it the! Almost every major automotive manufacturer now recommends compressor Replacement in the system pressures! The commissions thereby generated 2012 ford escape ac compressor not engaging maintain the site result of hot gas warming evaportor. The compressor then creates pressure inside the A/C system stops the summer swelter in its tracks replacing! Good as its ability to operate properly, consider replacing it with a new one works but hot pig assuming. The belt is slipping then you would rather have the fuse listed have... Use compressor oils your AC system manufacturer does not engage clutch can valuable... Refrigerant in your car system is only as good as its ability to operate,! N'T 2012 ford escape ac compressor not engaging enough to compressor clutch relay because the connectors are small to check and Fix Often than Recall! An A/C compressors clutch can prove valuable avoid such Fixes the harness the. Can prove valuable pump directly at the clutch gap is too wide account, sign in now to with., so check that fuse while youre at it as well ; the they. 95 to of these switches include low pressure switches, and sudden cold guys, could. Youd want to use the commissions thereby generated to maintain the site then you to! Wire should be able to reference a diagram in your cars service manual think it 's a 15 plug!
April 2
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