Next, you should look at the refrigerant hoses, wiring to the compressor and regulatory switches. In other words, the system is low on refrigerant. The AC relay (number 20) reads good voltage to the relay outlet. Aug 19, 2018. Low AC pressure will prevent the relay from sending power to the AC compressor clutch. 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. 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). 4.5 amps, check clutch air gap. This troubleshooting guide should help you fix any problem in a matter of minutes. Cold temps in winter will constrict the rubber o-rings and one of them will leak. Definitely dye should be added so that any leaks can be found. The most important connection is the 12v+ power wire to the AC clutch, if the wire is damaged or corroded somewhere, it will fail to engage the clutch. We took it back to the mechanic. 2. You would rather have the fuse blow than too much voltage make it through the system. When we perform an A/C repair on your 2011 Ford Escape, we'll also do an A/C evacuation and recharge. Mechanic's Assistant: Have you checked the Freon level? So they are saying there is no leak. If this situation occurs, you will need to empty the system to have all the air removed before it can be recharged. 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. Started 12 hours ago, By laumk7 I have mot. 85ltdcrownvic. Step three is not that complicated but it is delicate. Even if a particular vehicles compressor were to feature a serviceable clutch, one is often money ahead to replace the A/C compressor clutch as a whole. 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. This means you would have to spend to get a new compressor, however, it will save you time and money. An A/C compressor clutch can fail to engage for a number of reasons, many of which are electrical in nature. of r134a. Is the AC clutch supposed to spin all the time? AllIcouldAf-ford This may require fixing or replacement. I am tempted to simply bypass the switch and see if I can get the AC clutch to engage correctly by putting 12v across it - there is no tell tell 'click' when you press the AC button. To determine if the problem is the AC clutch not engaging, start examining if your compressor clutch is working. First, turn ON the AC and fan to the maximum. You may check your ACs user manual for specifications. 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. Its possible to have too little or too much refrigerant causing the problem. Don't leave it running to long like that though. If you turn the AC off, the clutch loses its electrical energy. Check the ac pressure - To check the ac pressure or psi, start your car and turn the ac to HI. Started 14 hours ago, By No problems since then (two years ago). We are a team of ASE certified mechanics When I was troubleshooting mine I bypassed it with a bit of wire and the AC kicked in - the relay itself was fine though, it was a section of wire that had broken off from the connection to the pressure sensor on the high pressure side of the system that was making it believe there was something wrong, the circuit was open when it should have been closed or vice versa, My post here was what I did, it might be of inspiration. If freon is low, it won't engage. Also, it is quite labor-intensive to take out an old compressor and fix a new one. By What Happens When There is Oil in The Coolant Reservoir? Any good shop should be able to trace this down. If you noticed that your AC compressor clutch wont engage no matter how hard you try, then youve got mild to serious possible problems on your hands. The Best Torque Wrench Digital or Dial Type? Key on, engine off, test for 2 powers at the relay cavity. Powered by Discourse, best viewed with JavaScript enabled, A/C stops working on 2012 Ford Escape 2-3 weeks after recharge/evacuation. No, old AC compressors with a clutch should not spin all the time. Let it bleed until it reaches the right level of pressure. Let us now learn how to manually engage the AC compressor clutch. Enginge Shut Down Stop Safly Now This Messige Come Every 10 To 20 Minute. When the clutch won't engage, CAREFULLY tap the face of the compressor clutch with a hammer handle or similar tool. Previously the air didn't work when set at level 2 and 3 of the four levels. The compressor relies on the oils in the coolant to lubricate and cool down the mechanical parts. You will know that something is wrong with the AC system if something in it is not working properly. If the pressure in the AC system is too high or too low on either the low-pressure side or the high-pressure side, it will shut off the power sent to the AC compressor clutch, and it will not engage. Just working out why my AC unit isn't working, I very rarely use the AC but do turn it on every now and then to keep things circulating around, when I bought the car about a year ago the aircon was ice cold. Royal Purple vs Mobil 1: Which Engine Oil is Better? Mechanic's Assistant: What year is your Escape? There are three reasons why the compressor clutch does not engage, especially if the sensor detects them. Who knows, you might get lucky like I did. -or-. (4 Causes and How to Fix), Does Cruise Control Actually Save Gas? This action will cause the fuse to blow. Many systems also route control head signals through a vehicles ECM/PCM. This process engages the plate, along with the compressor belt. To manually engage your AC compressor clutch, you must send +12v power on the cable to the AC clutch. Common Causes (& How to Fix). Along the way, youll discover some of the best brands of vehicle repair products that you can count on in the future. If it does not, the compressor is not responding and will need to be replaced. Previously the air didn't work when set at level 2 and 3 of the four levels. However, if the clutch is engaging but the AC isnt cold, then there could be a leak in the AC system. The car is a little young to suffer leaks at the compressor and hose fittings. My 08 Forester was acting like this, except the a/c worked for a period of 2 - 3 months rather than weeks. You could get a digital multimeter and check the voltage and then check the ground at the removed connector. RELATED: Car AC Not Blowing Cold Air? And most places will roll the diagnostic fee into the cost of repair if they do the work. 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? Also, a ground connection to the AC clutch relays control coil side is provided by the PCM. It may just be that the belt cant turn the compressor anymore. 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. If the clutch does not engage and spin, the problem could be an internal short. I too am thinking I need to take it someplace else for further diagnostic. Again it will need to be vacuumed and refilled. Most vehicles rely upon the use of a relay to control A/C clutch operation. Your shop should know where that spot it for your cars AC design. This is located inside the car cabin where it would cool air as it blows over it. If the pulley and the clutch are both spinning it shows that the clutch is engaged with the pulley correctly. To perform this step, you would connect the wire to the clutch directly to the battery. If this circuit is traced the fault of a open circuit can be found out. If they have to add ANY freon, then theres a leak, they just havent found it. rcmckee Inspect your compressor for an internal mechanical or electrical problem. ), P2004 Code: IMRC Issue (Symptoms, Causes, and Fixes). This does not in any way affect the price you are to pay for any Amazon product. 3. I'm not kidding about this. 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. Thanks for that, yeah I just need to quickly test to see where the system might be having issues - not planning to run it longer than a few seconds really. Bypass the 3 wire AC pressure switch through B1 to B4. If this clutch doesnt grab, the AC compressor will not turn on. Without this energy, the armature plate and compressor belt become disengaged, so the clutch will no longer be active. Dec 25, 2006. 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. Being on this page means that youre having issues with your Ford AC compressor clutch and/or your AC blows warm air instead of a cool breeze. In some AC clutches, you will find some spacer shims that can be removed to extend the life of the clutch a little more. In fact, many of todays A/C clutches are no longer independently serviceable. 2. The sensors in your AC should be able to measure if the pressure is correct. There are many reasons why an AC clutch does not engage. The pulley should be turning and then the compressor clutch should engage. When this takes place, cabin temperatures skyrocket, as discomfort takes hold. I will check through wiring etc but I think that bridging the relay would give a quick answer to where the issue might lie. The correct reading will display once the clutch engages and the gauge stops cycling. Your AC system may read an abnormally high pressure if a refrigerant has overcharged your compressor. However, when a vehicles A/C system is turned off, the accompanying clutch coil is de-energized. To check these, you can often measure them with a multimeter. From Heat To Cool. Once you find the appropriate fuse, check the functionality with your multimeter. Inspect the belt to see if it is cracked or shiny. With the clutch plate worn out, the clutch may not be able to engage. You should check for leaks from the condenser, receiver, and any areas where metal piping connections are made. If there isn't enough refrigerant, the clutch may not engage. If the fuse is fine, then you need to check the clutch relay. Your previous content has been restored. No leaks. The last thing you want to deal with is a hot car cabin. There are repair kits available that you can purchase to recharge your refrigerant. If it is not working properly, consider replacing it with a new one. 2012 Ford Escape 3.0 last week my AC went out! Do Not Sell or Share My Personal Information. Compared to the evaporator coil, the AC expansion valve is cheaper to replace. Ask your Ford dealer. Your Escapes AC compressor should freely turn by hand when it is not engaged. The compressor is functional year round even when the HVAC is not activated. 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. 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?
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