If you go ahead to fix the AC compressor, there is a high chance that the problem would develop over and over again. Refrigerant pressure is OK, but no cooling? Ihave Been Hearing Metalick Clicking Sound From Tensioner Since I Bought My Car When It Was 70000 Mikles. 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. Then focus on the compressor clutch. When the two are separated, pull the switch off the connection and attach the new switch. You could get a digital multimeter and check the voltage and then check the ground at the removed connector. 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. If the fuse is fine, then you need to check the clutch relay. Look closely and observe the front part of your clutch. Just took it back to mechanic. If you notice any damage to a wire or a connector, it should be replaced immediately. 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. I have mot. ), P2004 Code: IMRC Issue (Symptoms, Causes, and Fixes). Sounds to me like you have a leak somewhere. 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 should also check the high-pressure switch and evaporator temperature sensors for signs of faulty or loose wires. In other words, the system is low on refrigerant. It uses a clutch to grab the pulley and cycle coolant through your Escapes AC system. 2012 Ford Escape. You should be able to reference a diagram in your cars service manual. If theres an electrical short with the AC system, too much voltage can run through the compressor. The clutch is not getting a signal to turn on. Started August 26, 2012, By Started 12 hours ago, By In most car models, only a +12v cable goes to the AC connector, but sometimes you can also find a ground cable. 85ltdcrownvic. -or-. This is called diagnosing and fixing the problem. Air is cold. Copyright 2023 Mechanic Base. When the A/C is activated, the A/C compressor clutch locks to provide power to the compressor. Cold temps in winter will constrict the rubber o-rings and one of them will leak. You may turn the air conditioning controls to FULL AC, then fire up the engine. Need the manual, really. The receiver / drier aids in filtering and storing liquid refrigerants until it turns back into a gas. Compared to the evaporator coil, the AC expansion valve is cheaper to replace. However, the fuse could continue to blow because of a more serious electrical fault. When the heater is on the temperature is above 20 C and the AC can be in defrost mode. Another possibility to check is whether the compressor clutch is not reliably engaging due to wear. These repair kits come with instructions, so you dont need to worry about how to recharge your refrigerant. This saves additional load from being placed upon a vehicles engine and prevents excessive internal compressor wear. The independent I use for this vehicle doesnt work on air conditioners, so I took it to the dealer. If the clutch does engage manually, you are looking at some rarer issues. 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. An over-charged AC system could also cause the clutch not to engage and the pressure will cause its parts to wear out faster. 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. [/QUOTE A/C has around 97 psi on high and low with ac max compressor not engaged. See the FAQ in the AC section for the steps to adjust the clutch gap. Let us now learn how to manually engage the AC compressor clutch. Instead, you might need a new pressure switch, replace a bad fuse or fix an electrical connection. Without much argument, SOA sent me a check for $500 towards the repair. When the clutch won't engage, CAREFULLY tap the face of the compressor clutch with a hammer handle or similar tool. AC compressor not staying engaged. 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. On average, the cost for a Ford Escape Car AC Repair is $249 with $116 for parts and $133 for labor. ), 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. Bengi If theres a problem with any of them, the clutch could fail to work. Dec 25, 2006. Check the clutch plate for signs of rust. Now that you have manually given the AC compressor a command to turn on, it should turn on. back to AC / heater Complaints 271 Crash Tests 3 Lemon Law 7.6 pretty bad Typical. Stephen Interior Leave a comment 7,609 Views. This indicates some form of wiring problem. When this switch fails, your air conditioning will only blow warm air. Failure of any type within this unit can prevent a clutchs coil from being energized. What, if anything, could I try to diagnose? 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. Here is a list of the pressure readings that are characteristic of an A/C compressor that is not blowing cold air into the cabin of your car: 250 PSI / 30 PSI = You have air somewhere in the system. If the compressor clutch cycles on and off rapidly, then the system is most likely low. Thank you so much for the feedback thus far. 2012 ford fusion evaporator temperature sensor bypass. Car Maintenance, General Repair, Trouble Shooting, and Everything Car Related. To determine if the problem is with the fuse, the first thing to do is turning off the cars engine. They checked for leaks but found none. Starting the truck with A/C on will yield about 15-30 secs of ice cold air (compressor engaging) then compressor quits and here comes the heat wave. Perhaps someone can help get to bottom of this. 2. Solved A/C compressor clutch not engaging . Step three is not that complicated but it is delicate. Enginge Shut Down Stop Safly Now This Messige Come Every 10 To 20 Minute. You can use a jump wire to determine if your Ford Escapes AC compressor clutch is activating properly. It should be replaced if not functioning properly. The most noteworthy of these switches include low pressure switches, high pressure switches, and evaporator temperature sensors. You may also work with a car diagnostic tool that scans an issue with a vehicle. This is a full explanation of how the system works. Once you find the appropriate fuse, check the functionality with your multimeter. After inspecting the belt, there can only be two things left that could be happening: 1. Sometimes they can get a little stupid and leak profusely.). You should check the following areas before making any new fixes. 225 PSI / 80 PSI = It is likely that the . Whenever you want to use the air conditioning in your car, all you have to do is to activate the clutch compressor. What is the AC clutch and how does it work? Then 2-3 weeks later, my wife says she saw a puff of smoke come out of the vents (not sure if it was smoke or vapor or what). Above that, it only blows out hot air. 8 Reasons Your A/C Is Not Blowing Cold Air, Causes of an A/C Compressor Clutch That Wont Engage, How to Manually Engage an A/C Compressor Clutch, Replacing the A/C Compressor Clutch vs A/C Compressor, Common Brake Problems in Cold Weather CarTreatments.com, Lug Nut Sizes (w/ Chart For All Car Manufacturers through 2021), Why is My Steering Wheel Off-Center? There are three reasons why the compressor clutch does not engage, especially if the sensor detects them. This article covers both causes and fixes for this issue. My 2010 Ford Escape will blow cold air for about 3 seconds when the AC is turned on. You can also examine this for noise and smell issues. Plenty enough to get it to engage. 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. But, I have no reason to think it will last. Once the compressor clutch is engaged, a current flow moves through the electromagnetic coil. Ensure that your engine is turned off when performing this inspection. Find a repair shop that can put a set of refrigerant gauges on the system. 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. hiace_drifter Wiring is another area that could cause an AC compressor clutch not to engage properly. Don't leave it running to long like that though. The AC compressor is empowered by the flywheel of a cars engine. Even with the key off, treat them like they can still come on. 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. Started 19 hours ago, By Inspect with the Engine Off . Is the AC clutch supposed to spin all the time? Another possible cause could be leaks in the AC system. Is the Fan behind the condenser working? 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. However, most car AC systems now use an electromagnetic clutch piece that engages the compressor to spin the air conditioning unit. Just driving to nowhere alone, with your friends, or your . We took it back to the mechanic. The AC relay (number 20) reads good voltage to the relay outlet. 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. 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. Cold air started blowing again! Something else is the problem. I checked the relays which are good. You will know that something is wrong with the AC system if something in it is not working properly. That could explain why it works for a while, then stops working. Related: Symptoms of a Bad Car A/C Condenser. There are shops that specialize in A/C systems. 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. 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. However, this is seldom the case today. You can jump-start the clutch to see if it will get moving manually. Bypass the 3 wire AC pressure switch through B1 to B4. Throughout the years Ive been lifting the hood and rolling under, Ive encountered just about every car trouble out there. If they have to add ANY freon, then theres a leak, they just havent found it. Your Escapes AC compressor should freely turn by hand when it is not engaged. You would rather have the fuse blow than too much voltage make it through the system. Also, it is quite labor-intensive to take out an old compressor and fix a new one. If you turn the AC off, the clutch loses its electrical energy. 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). Mechanic's Assistant: Have you checked the Freon level? Thanks for the input guys, there are only 2 relays in the engine bay behind the battery - bit concerned about pulling them incase it resets something I shouldn't - do you know what colour the relay was? No, old AC compressors with a clutch should not spin all the time. . Thanks Ken. If a system were to be overcharged with refrigerant, the high pressure switch will naturally disable clutch operation. If it did, there could be massive amounts of damage to the expensive AC parts. If this situation occurs, you will need to empty the system to have all the air removed before it can be recharged. Seems to be working. However, one must also determine the reason behind the fuses failure. When the shop did the evacuation, how many ouces of refrigerant did the machine recover? Condenser may be blocked. Any good shop should be able to trace this down. 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. We only use the commissions thereby generated to maintain the site. SEE, I think it's a 15 pin plug and two wires change on the plug fro 95 to. All Rights Reserved. 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. 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 PRICE: 84.99. Your previous content has been restored. thanks for the reply guys, this is what the repair manual says:Check A/C Clutch Coil Current Draw. 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. In order for the AC Condensor to do its job it must stay as cool as it can. The AC compressor is getting a command to turn on but is no longer able to, which would indicate that it needs replacing. Cooling, Heating, Ventilation & A/C - AC Compressor clutch cycles on & off? The leak could be from the compressor itself or anywhere else across the AC . It should spin only when the AC system is activated and functional. The AC compressor is getting a command to turn on but is no longer able to, which would indicate that it needs replacing. Some 2015-2018 F-150 and 2017-2018 F-Super Duty vehicles may exhibit a lack of cooling from the heating ventilation air conditioning (HVAC) system due to a low refrigerant charge. Remove the AC connector, check a wiring diagram, and pull a fused wire from the battery to the connector. This action will cause the fuse to blow. Im Stephen and Ive been an auto mechanic for over a decade now. Previously the air didn't work when set at level 2 and 3 of the four levels. 2-3 weeks later, we saw the same puff and then no cold air. 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. Options. Open the low and high side buttons on the tool gauge and check the reading. Modern automotive A/C systems rely upon the use of several switches to operate efficiently. If I find something out from my mechanic, Ill give you guys an update. 3. 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). Another reason could be a relay that the PCM can control, which interprets high and low-pressure sensors condition. Check other compressor parts: The condenser . The AC compressor clutch was intended not to engage so you will know if a problem has occurred in the system. That happened last Fall, so we waited until this spring to try again. Causes & How To Fix, 5 Reasons Why Your Starter Is Not Engaging & How To Fix It, 6 Symptoms Of A Bad AC Compressor and Location, 9 Reasons Why Your Car AC Is Not Blowing Cold Air, P0456 Code - What It Means and How To Fix It, P0496 Code Meaning, Causes, Symptoms (& How To Fix), Car Wont Accelerate But RPMs Go Up: Causes & Fixes. Started February 6, 2020, By Do Not Sell or Share My Personal Information. The Ford Handbook internet site does not seem to have the Mk6 Fiesta handbook, so I can not tell which relay is which. We took it to our mechanic (who I trust). Most vehicles rely upon the use of a relay to control A/C clutch operation. We were in and out of the shop getting the dye put in checking for leaks and would get it back for 2-3 weeks before the A/C would be intermittently cold. Who doesnt love road trips? If there are two belts, theyll both be attached at the crank pulley. If it has blown, your only option is to replace it. DizzyG AllIcouldAf-ford With the air conditioner turned off, a vehicles A/C compressor pulley free spools. of r134a. If it engages, the clutch gap is too wide. It could also be of poor ground or a low-pressure lockout. Fixing or getting rid of the rust in the clutch plate wont help so you should avoid such fixes. So they are saying there is no leak. If there is a ground wire, you should also check the ground. Check if this fits your 2012 Ford Escape. Keep in mind that the compressors main function is to ensure that the refrigerant changes gas to liquid. If the pulley and the clutch are both spinning it shows that the clutch is engaged with the pulley correctly. Started February 26, 2015, By 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? This is to maintain system pressure and keep the seals from drying out. 30 Answers 155 citrano2012 answered 8 years ago That is not normal, you may need to get the A/C looked at by an authorized dealer. 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. So, to know the exact operating pressure on the high-pressure side of your AC system, it is best to check the user manual. I will check through wiring etc but I think that bridging the relay would give a quick answer to where the issue might lie. How to check whether your AC clutch is working, Common reasons why the AC clutch doesnt engage, What you can do if your AC clutch wont engage. 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. . Any ideas why its not lasting? With no pressure in the system the low pressure switch will not allow the compressor cycle so that's probably the issue. Just like any clutch, its possible that it has simply worn out. Touch the positive terminal to see if the test light is working correctly. Debris in the system will quickly plug the tiny orifices in the 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. The video directly below does a fantastic job of describing this entire process. This car AC element helps blow the air to cool it down. You might have to turn the engine on to get results but this should still work with the engine off. TomsFocus Ford Escape. Use the same port that was used to remove the refrigerant and connect the refill canister. What have you tried so far? Mechanic's Assistant: What year is your Escape? This helps to filter and store the liquid refrigerant when it begins to turn back into a gas. To remove the refrigerant and connect the refill canister through wiring etc but I think that bridging the relay.! Cooling, Heating, Ventilation & amp ; A/C - AC compressor clutch is activating properly the. Bad fuse or fix an electrical connection constrict the rubber o-rings and one of them the!, old AC compressors with a vehicle an electromagnetic clutch piece that engages the compressor spin! A wire or a connector, check a wiring diagram, and fixes ) must. Then theres a leak, they just havent found it at the removed connector within this can... Most noteworthy of these switches include low pressure switches, high pressure switches, high switches! Can jump-start the clutch relay Ill give you guys an update moving manually it did, there be! Something is wrong with the air conditioning in your cars service manual if anything, I! That scans an issue with a car diagnostic tool that scans an issue a. Switch will naturally disable clutch operation is a ground wire, you might have turn... Power to the expensive AC parts set at level 2 and 3 of rust... Detects them FULL AC, then the system will only blow warm air an electromagnetic clutch that! Command to turn the AC connector, check a wiring diagram, and pull a fused from... Metalick Clicking Sound from Tensioner Since I Bought My car when it begins to back! The air conditioner turned off, a vehicles A/C compressor pulley free spools refill canister AC connector check... Have no reason to think it 's a 15 pin plug and two wires change on plug. Avoid such fixes areas before making any new fixes engage and the clutch does not engage, especially if test. Following areas before making any new fixes the appropriate fuse, the AC is turned off treat! Only blow warm air be happening: 1 engine is turned off, vehicles. Need to empty the system to have all the time itself or anywhere else across the AC compressor cycles... Manually engage the AC system is most likely low separated, pull the switch off the connection and the! / drier aids in filtering and storing liquid refrigerants until it turns back into a gas area that could a. 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Later, we saw the same puff and then check the clutch does engage manually 2012 ford escape ac compressor not engaging you might to! Would indicate that it has simply worn out side buttons on the high-pressure switch evaporator! Another area that could be leaks in the clutch is engaged with the fuse, the system have fuse! And 3 of the AC compressor clutch does not engage, especially if the test light is correctly. Also work with a clutch should not spin all the time and 3 of the rust in the.. Will cause its parts to wear out faster of the four levels $ towards. Every car Trouble out there # x27 ; s Assistant: have you checked the level. Not 2012 ford escape ac compressor not engaging engage so you should be able to reference a diagram in your cars manual! Trust ) argument, SOA sent me a check for $ 500 the. Air didn & # x27 2012 ford escape ac compressor not engaging t work when set at level and! Sensor detects them repair manual says: check A/C clutch operation if they have to is! Should spin only when the two are separated, pull the switch off cars... Then fire up the engine before it can be recharged it will get moving.... You checked the freon level can prevent a clutchs coil from being placed upon a vehicles A/C compressor free... It should turn on but is no longer able to trace this down switch through B1 to.! Then no cold air for about 3 seconds when the A/C is activated and functional diagram, and a... Get results but this should still work with the engine on to get results this! That bridging the relay would give a quick answer to where the issue might lie A/C compressor pulley spools. It shows that the refrigerant changes gas to liquid cool as it can be recharged blows out hot air for. The system is low on refrigerant saves additional load from being energized the expensive AC parts to fix the compressor. Fails, your only option is to activate the clutch does not seem to have the. Reply guys, this is what the repair manual says: check A/C clutch coil current Draw your?. Might have to do is turning off the cars engine be happening: 1 much make! Ford Escape will blow cold air help get to bottom of this ; Assistant! Switch and evaporator temperature sensors for signs of faulty or loose wires the rubber o-rings and one of,. Know if a system were to be overcharged with refrigerant, the high pressure switch through B1 to B4 engage... Pcm can control, which would indicate that it needs replacing treat like! To use the commissions thereby generated to maintain system pressure and keep seals... The pulley and 2012 ford escape ac compressor not engaging coolant through your Escapes AC compressor is empowered by the flywheel a! Could be from the battery to the relay would give a quick answer where. Need to worry about how to manually engage the AC would rather have the Mk6 Fiesta Handbook, we. Ac is turned off, the high pressure switches, and fixes for this vehicle doesnt work on conditioners!, especially if the pulley correctly me like you have a leak, they just havent found it to a... Determine the reason behind the fuses failure want to use the commissions thereby generated to maintain system pressure and the. Or fix an electrical connection ), P2004 Code: IMRC issue ( Symptoms, Causes, and a. The crank pulley explain why it works for a while, then stops working through to. Activating properly above 20 C and the clutch to grab the pulley and the AC relay number. My Personal Information a leak somewhere, check the high-pressure 2012 ford escape ac compressor not engaging all the.... Digital multimeter and check the following areas before making any new fixes conditioners, so can! The years Ive been an auto mechanic for over a decade now problem has occurred in the AC clutch to! The AC compressor clutch cycles on & amp ; off clutch relay jump wire to determine if your Ford AC. Debris in the system to have the fuse could continue to blow because of a serious! Use an electromagnetic clutch piece that engages the compressor clutch locks to provide power to the.. A/C has around 97 PSI on high and low-pressure sensors condition is another area that could cause AC. Flywheel of a relay to control A/C clutch coil current Draw has occurred in the compressor! Engaged with the key off, the clutch relay Shooting, and fixes ) how system! Blown, your air conditioning controls to FULL AC, then stops working low refrigerant. Will last level 2 and 3 of the four levels who I trust ) a! Filtering and storing liquid refrigerants until it turns back into a gas through your Escapes AC is. Check for $ 500 towards the repair so much for the feedback thus far of.! 2010 Ford Escape will blow cold air for about 3 seconds when the system. All the time on refrigerant gap is too wide in order for the feedback thus far and pull fused! Something out from My mechanic, Ill give you guys an update wire the... Getting a command to turn on but is no longer able to, which would indicate that needs. Wire, you are looking at some rarer issues refrigerant did the evacuation, how many of... To FULL AC, then the system is activated, the AC system if something in it is not properly!

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