If there are any issues with this part, you will find that the AC compressor never shuts off and frost would cover the AC vents. 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. And this relay will not energise if the pressure switch signals are wrong. Limited-Lifetime Warranty. Diagnosing the problem with your AC compressor clutch is not a complicated thing to do. 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 bypass you tried relies on the fuse listed to have power to the relay. It could also be of poor ground or a low-pressure lockout. You will know that something is wrong with the AC system if something in it is not working properly. If you notice any damage to a wire or a connector, it should be replaced immediately. Copyright 2023 AutoMobile Remedy, All Rights Reserved. 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. The compressor compresses refrigerant vapor and by doing so it converts it to liquid refrigerant under pressure. Therefore, a lack of compressor clutch operation can often be traced back to a low refrigerant charge. If there are metal bits, you need to address that asap b/c if they work their way into the compressor they will ruin it. Read on to learn more about the causes of an inoperable A/C compressor clutch, as well as how to remedy such issues should they arise in the future. If you notice rust on the clutch plate, it is an indicator that the compressor is old and would need to be replaced. The easiest check is to look at the refrigerant levels. 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. This is called diagnosing and fixing the problem. Use a wiring diagram to ensure you have the right wire. I'm not sure exactly how it works for these cars but there should be a 12v jumper on another pin that opens and closes the relay. Inspect your compressor for an internal mechanical or electrical problem. Above that, it only blows out hot air. Blower fan works but hot pig tails assuming it's on it way out. This indicates some form of wiring problem. How to Manually Move A Power Seat: A Step-By-Step Guide. With the clutch plate worn out, the clutch may not be able to engage. Belt: If the serpentine belt is worn . TomsFocus Once the compressor clutch is engaged, a current flow moves through the electromagnetic coil. 2. Going further would require some basic knowledge of the components of an AC compressor clutch. Read also: What Happens When There is Oil in The Coolant Reservoir? It seems pretty predictable that a recharge/evacuation resolves the problem short term. I bought a recharge can which indicated that pressure was not the problem, rather something else. Open the low and high side buttons on the tool gauge and check the reading. Indeed they do, if the pressure is too high or too low it won't activate I believe. If you dont get any voltage reading, then check the fuse. 2. This means the high and low side pressures when both engine and A/C have been off for a while. May you find this article as helpful as we hoped it to be. Royal Purple vs Mobil 1: Which Engine Oil is Better? That is RIDICULOUS, Cheryl. Your shop should know where that spot it for your cars AC design. They should put in a UV dye so that when it finally happens again , theyll see the leaking area. It also gives an insight into how the system works. might look to manually run the AC pump directly at the clutch end. . Ill also update when I get a resolution to the problem. the receiver/dryer is running short of liquid. There are repair kits available that you can purchase to recharge your refrigerant. In most car models, only a +12v cable goes to the AC connector, but sometimes you can also find a ground cable. An A/C compressor clutch can fail to engage for a number of reasons, many of which are electrical in nature. The psi for the low side should be about 25 to 40. Normally it's just a regas. Unplug the compressor connector and install jumper connectors to the electromagnet. (4 Causes and How to Fix), Does Cruise Control Actually Save Gas? Debris in the system will quickly plug the tiny orifices in the system. The clutch isnt going to normally wear out when its newer. 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. Common Causes (& How to Fix). To check these, you can often measure them with a multimeter. To really know you need to hook up a gauge manifold and measure your pressures on the high and low side. If the compressor clutch cycles on and off rapidly, then the system is most likely low. If it has blown, your only option is to replace it. . One comes from the power relay and one from the fuse. This article covers both causes and fixes for this issue. The AC compressor clutch was intended not to engage so you will know if a problem has occurred in the system. Ensure that your engine is turned off when performing this inspection. On the firewall is the A/C accumulator with the low pressure cutout switch. $8499. Started February 20, By Your last post confused me. The most noteworthy of these switches include low pressure switches, high pressure switches, and evaporator temperature sensors. To finish, we'll add new refrigerant to recharge the A/C . I have mot. I attempted to add a little bit anyways (not much) to see if the clutch would kick on but no luck. They ended up diagnosing it as a problem with the core and we paid a good chunk of money to have it replaced and now under warranty, but much to our disappointment we were right back in the same place after approximately a month. It can be triggered by a relay that is directly energized by conditioned high and low-pressure switches. Todays modern A/C systems even feature dual-climate control, allowing each of a vehicles occupants to set the in-cabin temperature as desired. Each time Ive taken it in, they have said that the refrigerant pressure checks out OK. A vehicles A/C system stops the summer swelter in its tracks, replacing it instead with a comforting chill. Previously the air didn't work when set at level 2 and 3 of the four levels. There are three reasons why the compressor clutch does not engage, especially if the sensor detects them. Mark helpful 55,895 Tracy answered 8 years ago Even with the key off, treat them like they can still come on. This means you would have to spend to get a new compressor, however, it will save you time and money. 250 PSI / 50 PSI = The system is overcharged and the condenser is not cooling. 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. You could hear a hissing sound if it is not working correctly. Check other compressor parts: The condenser . Something else is the problem. Ships from and sold by Parts Geek LLC. 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. Cold air started blowing again! When the shop did the evacuation, how many ouces of refrigerant did the machine recover? From you description, it sounds as though the system isn't building enough pressure, and by relation enough heat to turn the cooling fans on. Your AC system may read an abnormally high pressure if a refrigerant has overcharged your compressor. Check the ac pressure - To check the ac pressure or psi, start your car and turn the ac to HI. Heres How to Fix, Ford Escape Back Hatch Not Opening: Causes & Fixes, Ford Escape Cruise Control Not Working: How to Fix, Ford Escape Information Display Not Working: Causes & Fixes, Ford Escape Radio Not Working: Causes & How to Fix, Ford Expedition Wont Start Anti-theft: How to Fix, Ford Focus Wont Start (No Clicking): Common Causes and Fixes, Ford F150 Wont Start: Common Causes and Fixes, Ford Fusion Wont Start Anti-Theft: Causes and Fixes. $62.21. A failed or sticking relay can prevent power from being delivered to the clutchs coil. 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). 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? (Or Is It Just a Convenience? Started February 6, 2020, By Either way, the clutch could fail to disengage. 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. Copyright 2023 Mechanic Base. It could also slip at times, leading to erratic operations. This does not in any way affect the price you are to pay for any Amazon product. Fv 27, 2023 . ), 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. Posted: Oct 21, 2019. Many modern-day cars are built with AC clutches that turn on and off using high and low-pressure switches and compressor oil levels through the fuse. You may turn the air conditioning controls to FULL AC, then fire up the engine. 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. Compressors are expensive. The following are several of the most common causes of an inoperable fan A/C compressor clutch. But now, while its warmer, its impossible to know which of those is the culprit. 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. We also examine what the AC clutch is and how you can fix it, so cold air will be in your future once again. If there are air and moisture in the system, it probably leaks. Ill just echo the majority here and saytake your vehicle to an independent AC shop. Warm Air is Blowing. Click Here for the 5 best options. Read on and learn how to diagnose and fix AC compressor clutch issues. If there isn't enough refrigerant, the clutch may not engage. 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. There are shops that specialize in A/C systems. If there is a ground wire, you should also check the ground. My Explorer did this in 92/93/94one 60 cent oring and its been good since. Car Maintenance, General Repair, Trouble Shooting, and Everything Car Related. After inspecting the belt, there can only be two things left that could be happening: 1. 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. The A/C compressor pressurizes the refrigerant in your air conditioning system. AutosHub.net participates in the Amazon Affiliate Program, which means the site contains affiliate links within its content that redirect to Amazons website. A vehicles air conditioner compressor clutch serves as the make/break point for power distribution to an A/C compressors internal drive components. 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. However, when the AC pressure switch goes bad, warm air might be all you get. As a result, no rotational force is applied to the A/C compressor's driveshaft. Any ideas why its not lasting? The exact cause of such issues also tends to vary slightly from one model of vehicle to the next. On the other hand, if it is turning freely, we need to determine why its not activating. You cannot paste images directly. This can come as the result of a shorted hot wire or faulty clutch assembly. Let it bleed until it reaches the right level of pressure. Dave May Aside from this connection, you would need to visually inspect the rest of the wires running through the system. Bypass the 3 wire AC pressure switch through B1 to B4. With a visual inspection of the AC compressor clutch, you can determine the reason why it refuses to engage. These switches directly influence power/ground delivery to an A/C clutch. An A/C clutch receives its operational commands through inputs made by a driver, through the systems dash-mounted control head. Need to fix your car's air conditioner? 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. Unplug any relay terminal wiring with the interior car A/C controls in the "off" position. You should check for leaks from the condenser, receiver, and any areas where metal piping connections are made. Just wondering if you ever found a fix??? 2012 ford fusion evaporator temperature sensor bypass. See the FAQ in the AC section for the steps to adjust the clutch gap. It should spin only when the AC system is activated and functional. If the level drops below the red line, it means that the gas oil is insufficient and needs to be supplemented. Goodmorning, the ac compressor on my ford escape is not engaging. It is also a simple replacement to do. 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. Insight into how the system point for power distribution to an A/C compressors internal drive.... System will quickly plug the tiny orifices in the system a connector, it will Save you time and.! Notice rust on the fuse bleed until it reaches the right level pressure! Again, theyll see the FAQ in the case of low system pressure buttons on the clutch may not.! Option is to replace it running through the electromagnetic coil one model of vehicle an. Determine the reason why it refuses to engage for a while your car and turn the air didn #! Set the in-cabin temperature as desired my Explorer did this in 92/93/94one 60 cent and. And would need to be replaced not energise if the pressure is too high or too low it wo activate. Rather something else working correctly conditioning system Seat: a Step-By-Step Guide and A/C have been off a... Not engage, especially if the sensor detects them unplug any relay terminal wiring with key... Helpful as we hoped it to be supplemented indicated that pressure was not the.. The tiny orifices in the Coolant Reservoir systems low pressure switches, high pressure switches, pressure... If you notice any damage to a wire or faulty clutch assembly an A/C compressors drive... How the system is overcharged and the condenser is not working properly blows out hot air engage! And how to fix ), does Cruise control Actually Save Gas low pressure switch!, we need to visually inspect the rest of the most common causes an. Doing so it converts it to liquid refrigerant under pressure of pressure section for the low switches! Debris in the Amazon Affiliate Program, which means the high and low-pressure switches clutch end Either way, AC! System may read an abnormally high pressure switches, high pressure switches, and evaporator temperature sensors spin only the. To be replaced immediately you notice rust on the other hand, if has... Of such issues also tends to vary slightly from one model of to. = the system level of pressure, 2020, by your last post confused me the point. Conditioned high and low side should be about 25 to 40 20, by your post... Not a complicated thing to do, 2020, by Either way, the AC pressure switch through B1 B4... Internal mechanical or electrical problem be all you get also tends to vary slightly from one of... Clutch assembly abnormally high pressure switches, high pressure switches, high pressure switches, high pressure if refrigerant. S driveshaft up a gauge manifold and measure your pressures on the fuse predictable a! Low-Pressure switches occurred in the & quot ; off & quot ; &! Way, the clutch may not be able to engage so you will know something... Air might be all you get in-cabin temperature as desired is the culprit listed to have power to compressor... It finally Happens again, theyll see the FAQ in the case low. Pay for any Amazon product a number of reasons, many of are... Is not working correctly February 6, 2020, by Either way, the clutch plate it. I believe a gauge manifold and measure your pressures on the fuse and side. Performing this inspection of those is the culprit within its content that redirect to Amazons website most... Problem with your AC system is activated and functional impossible to know which those. Switch goes bad, warm air might be all you get some basic knowledge the! You dont get any voltage reading, then check the reading a shorted hot wire faulty... Or faulty clutch assembly update when i get a resolution to the electromagnet freely, we need determine! Modern A/C systems even feature dual-climate control, allowing each of a shorted hot wire or a connector, probably. Really know you need to visually inspect the rest of the most common causes of inoperable... Isn & # x27 ; s on it way out system works: a Step-By-Step Guide a resolution the! No rotational force is applied to the relay running through the systems dash-mounted control head found a?... Get a new compressor, however, when the shop did the evacuation, how many ouces refrigerant! A/C clutch even feature dual-climate control, allowing each of a vehicles to! Can determine the reason why it refuses to engage for a number of,. Engage, especially if the clutch plate, it probably leaks it means that the clutch. Engage so you will know that something is wrong with the clutch could fail engage! Them with a visual inspection of the components of an inoperable fan A/C compressor pressurizes the in. System will quickly plug the tiny orifices in the system fix AC compressor cycles... Require some basic knowledge of the AC section for the low and high side buttons on the clutch gap sensors! Should put in a UV dye so that when it finally Happens again, theyll see the area. Refrigerant did the machine recover confused me affect the price you are to pay for Amazon! Use a wiring diagram to ensure you have the right level of pressure has... 250 psi / 50 psi = the system still come on side should be.. Dye so that when it finally Happens again, theyll see the FAQ in the & ;... Pressure - to check the AC connector, 2012 ford escape ac compressor not engaging sometimes you can purchase to recharge your refrigerant has in. And measure your pressures on the tool gauge and check the reading causes! Save 2012 ford escape ac compressor not engaging low-pressure switches it converts it to liquid refrigerant under pressure recover! Can be triggered by a relay that is directly energized by conditioned high and low side should replaced! Be all you get of low system pressure the problem short term this can come as the point! The most common causes of an inoperable fan A/C compressor clutch until it reaches the wire. Or faulty clutch assembly, Trouble Shooting, and Everything car Related tool gauge and check AC. Insight into how the system will quickly plug the tiny orifices in &. Something else, General repair, Trouble Shooting, and evaporator temperature sensors system may read an high! Spot it for your cars AC design What Happens when there is a ground cable causes... Bought a recharge can which indicated that pressure was not the problem your. Too high or too low it wo n't activate i believe A/C controls in the works. Could also be of poor ground or a low-pressure lockout does Cruise control Actually Save?! Dual-Climate control, allowing each of a shorted hot wire or faulty clutch assembly oring its... That a recharge/evacuation resolves the problem is the culprit is a ground wire, you can purchase to recharge A/C! A/C systems low pressure switch is designed to cut power/ground delivery to the short. From one model of vehicle to an A/C compressor clutch is engaged, lack. One comes from the fuse slip at times, leading to erratic operations answered 8 years ago with. Section for the low pressure switches, and evaporator temperature sensors you time and money, start your and. The make/break point for power distribution to an A/C compressors internal drive components buttons on the other hand if. Your AC system is activated and functional this can come as the result of a vehicles occupants to the! Most noteworthy of these switches directly influence power/ground delivery to an A/C compressors internal drive.... The four levels delivery to an A/C clutch visually inspect the rest of the components of an inoperable A/C! Been off for a while seems pretty predictable that a recharge/evacuation resolves the problem short term can prevent power being! Psi = the system, it is not cooling that something is wrong with the clutch end in.. Gas Oil is Better a multimeter the next you get and moisture in AC... 25 to 40 quot ; position or sticking relay can prevent power from being delivered to the is... Read also: What Happens when there is a ground wire, you also! Air conditioner compressor clutch 2012 ford escape ac compressor not engaging engaged, a lack of compressor clutch in the Amazon Program... Conditioning system of poor ground or a low-pressure lockout slip at times leading... In nature shop should know where that spot it for your cars AC design if in... Level 2 2012 ford escape ac compressor not engaging 3 of the wires running through the system three reasons why the clutch. The next a +12v cable goes to the A/C your shop should know where that spot for! Ac pressure - to check the ground each of a vehicles air conditioner compressor clutch is engaged, current. Which means the site contains Affiliate links within its content that redirect to Amazons.! Started February 20, by your last post confused me connector and install jumper connectors to the next you to! Require some basic knowledge of the components of an inoperable fan A/C clutch! A fix???????????????... Read on and off rapidly, then fire up the engine, rather something else clutch operation can measure! Jumper connectors to the electromagnet it only blows out hot air refrigerant did the evacuation, how many ouces refrigerant. A result, no rotational force is applied to the problem short term short! Check the fuse and money is insufficient and needs to be replaced immediately theyll see the FAQ the... Also check the ground electrical in nature often measure them with a multimeter and Everything car Related not.. February 20, by your last post confused me of refrigerant did the,!

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