These repair kits come with instructions, so you dont need to worry about how to recharge your refrigerant. Instead, you might need a new pressure switch, replace a bad fuse or fix an electrical connection. Sometimes they can get a little stupid and leak profusely.). What have you tried so far? You may consider it as the heart of the AC and the refrigerant as the blood. 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. If you notice any bad odor or a hissing sound when you turn on both your cars heat and AC, it means that your evaporator coil is either leaking or broken. Definitely dye should be added so that any leaks can be found. That is why the pressure switch is there. Tiny bits of metal can clog your AC condenser. If you notice rust on the clutch plate, it is an indicator that the compressor is old and would need to be replaced. The clutch resembles a friction plate. The official Ford website can be found at http://www.ford.co.uk/. There are shops that specialize in A/C systems. I think if it happens again and the shop continues to insist theres no leak, ask them to check for debris in the AC system. Here is a more detailed list of the most common reasons why your AC clutch is not engaging: The air conditioning system needs the right amount of refrigerant to run properly. Its important to take this issue seriously because an AC compressor failure is almost always related to the engine. 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. Free In-Store or Curbside Pick Up. Escape A/C Recharge. 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DaveOM SOURCE: 2009 ford escape ac intermittent Make sure your fan is coming on, you should hear it come on when you turn on the A/C or defrost. ), 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 the clutch doesnt engage with the engine on and the AC turned to the maximum, then something is now working correctly. You could also get warm air instead of cool air. ANY good A/C shop will solve this riddle in short orderits all they do. To check the fuse, you must first locate the appropriate one for the system. 15 people found this helpful. After inspecting the belt, there can only be two things left that could be happening: 1. The AC compressor clutch is a major part of the automotive air conditioning system. I have mot. In turn, the A/C system clutch disengages. We took it to our mechanic (who I trust). It may just be that the belt cant turn the compressor anymore. Had transmission rebuilt (Pro).My problem is that when it gets around 35, 8L90E Specs, Performance, and Identification, TH400 Transmission Specs, ID, and Common Problems, Ford Windstar: AC Compressor Not Turning On Diagnosis, Chevy Avalanche: AC Compressor Not Turning On Diagnosis, Mazda 6 P0320: Meaning, Causes, & Diagnosis. 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. This indicates some form of wiring problem. Amazon Link AC Relays (Honda) - https://amzn.to/34vFNsrAmazon Link AC Relays (Toyota) - https://amzn.to/2NaBJbNIf your A/C compressor clutch won't engage bec. The compressor compresses refrigerant vapor and by doing so it converts it to liquid refrigerant under pressure. The easiest way to find electrical problems is to use a multimeter, which we will go over later in the article. If you haven't bought one, don't. Charge the oil (unless the compressor cam precharged), press it to about 200 psig with preferably nitrogen and soap bubble check everything. In some cars, the compressor clutch relay goes on and off and is grounded by a computer in a controller system. So they are saying there is no leak. Started February 26, 2015, By However, one must also determine the reason behind the fuses failure. Compressors are expensive. 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. Seems to be working. Seems to work good when outside temps are below 80 degrees. You may also notice a bad smell when you turn on both heat and AC. The failure of any of these sensors can render an A/C clutch inoperable. Belt: If the serpentine belt is worn . Started 14 hours ago, By 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. Get back to us with the before and after evacuation/recharge refrigerant weights. I am thinking that the puff of vapor is the result of hot gas warming the evaportor and driving off condensed moisture i.e. If the pulley is the only part spinning, it means that the clutch is damaged, and the AC will not work properly. 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). Jiffy Lube Vs. Valvoline Oil Change: Differences & Which Is Better. If you notice any damage to a wire or a connector, it should be replaced immediately. Martian. Goodmorning, the ac compressor on my ford escape is not engaging. If it does have power and you bypassed it then you need to verify power to the compressor. Is it possible for it to be leaking but to have the pressure check out OK? 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. 3. Ensure that your engine is turned off when performing this inspection. 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. The A/C stopped blowing cold air . Check other compressor parts: The condenser . 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. 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. You can also examine this for noise and smell issues. One wire should be attached to the negative battery terminal, while the other touches the positive side. Its located next to an electromagnetic coil. Your shop should know where that spot it for your cars AC design. With PAG 46. Therefore, a lack of compressor clutch operation can often be traced back to a low refrigerant charge. Pasted as rich text. Then its quick match to figure out how many ounces were lost in those 2 weeks. Your AC system may read an abnormally high pressure if a refrigerant has overcharged your compressor. It could be because of a blown fuse, a bad clutch coil, or an open on the wire to the clutch coil. 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! 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. When a vehicles A/C system is commanded into operation, power is distributed to the A/C compressor clutchs magnetic coil. Or, it may be turned by an independent belt. If the fuse does not seem to have any problem, then you may put it back to the system. Switch needs to be plugged into connector and just because it is new, does not mean it is good. 2. Ask your Ford dealer. If the clutch kicks on at first I doubt it is that. This is to maintain system pressure and keep the seals from drying out. Solved A/C compressor clutch not engaging . It creates an electromagnetic force, which pulls the coil towards the friction plate. The A/C stopped blowing cold air shortly after that. If you hear a thunk or clunk noise after turning the AC on, the compressor is engaging. Started August 26, 2012, By Inspect your compressor for an internal mechanical or electrical problem. Im Stephen and Ive been an auto mechanic for over a decade now. If it clicks on for just a second or two and repeats this cycle, then the low pressure switch is engaging and cutting off the compressor. Related: Symptoms of a Bad Car A/C Condenser. Air is cold. The Ford Escape AC system is controlled by the HVAC controller and PCM, along with several temperature sensors. 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. SKU # 886341. The compressor relies on the oils in the coolant to lubricate and cool down the mechanical parts. 2-3 weeks later, we saw the same puff and then no cold air. See Also: 8 Reasons Your A/C Is Not Blowing Cold Air. If the only rotating part is the pulley, then the clutch fails to run. Over time, you may notice your A/C not performing as it should. Route the wires to the car battery. Antonsd When you turn on the air conditioning, you expect to feel cold air pour out. Previously the air didn't work when set at level 2 and 3 of the four levels. Last summer, the A/C on our 2012 Ford Escape stopped blowing cold air. and what to Has Been In The Shop 4 Times For This Same Problem. Bengi Common Causes (& How to Fix). But now, while its warmer, its impossible to know which of those is the culprit. On the other hand, if it is turning freely, we need to determine why its not activating. Also, a ground connection to the AC clutch relays control coil side is provided by the PCM. 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. My 2010 Ford Escape will blow cold air for about 3 seconds when the AC is turned on. Bypass the 3 wire AC pressure switch through B1 to B4. You may be in one of these two situations, if so, you should check the fuse of the compressor clutch. Now the AC compressor clutch is engaging and disengaging in about a 4 second 50/50 cycle. The most noteworthy of these switches include low pressure switches, high pressure switches, and evaporator temperature sensors. 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. You could hear a hissing sound if it is not working correctly. that have created this guide for you so you can understand how the system works These include low or excess refrigerant and insufficient oil. 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 . 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. Copyright 2023 Mechanic Base. All Rights Reserved. I appreciate the help and sorry for me english it's very rusty. This indicates some form of wiring problem. If the level drops below the red line, it means that the gas oil is insufficient and needs to be supplemented. Castrol Edge vs. Mobil 1 Oil: Differences & Which Is Better? So, to know the exact operating pressure on the high-pressure side of your AC system, it is best to check the user manual. You should first check the electric system, clutch, and other parts for issues and leaks before going ahead with this fix. . However, this is seldom the case today. Check Function Using a 12-volt test light, connect the alligator clip to the negative terminal on the battery. If the compressor clutch cycles on and off rapidly, then the system is most likely low. 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. I would be curious about the system static pressures. This may require fixing or replacement. 4.5 amps, check clutch air gap. If nothin happens, ac clutch bad. As a result, no rotational force is applied to the A/C compressor's driveshaft. Thank you so much for the feedback thus far. During this process, a technician will remove the old refrigerant from the A/C system. Murray Compressor - New - 58035. This troubleshooting guide should help you fix any problem in a matter of minutes. However, if the clutch is engaging but the AC isnt cold, then there could be a leak in the AC system. Started 12 hours ago, By If there is a ground wire, you should also check the ground. Definitely talk to the dealer and Ford corporate about this; the worst they can say is no. First, turn ON the AC and fan to the maximum. Common Causes of AC Clutch is Not Engaging, Ways to Fix an AC Clutch Thats Not Engaging, 5. However, it normally makes more sense to put in a new AC compressor. 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 can try disconnecting the low pressure switch and bridging the connector , run engine briefly with air con on and see if compressor engages. My A/c Blows Warm Air No Matter What Setting It Is On. How to Fix A Hard Shifting Automatic Transmission: Tips And Tricks From The Pros. But as was mentioned by someone else, if they are having to add refrigerant, then you have a leak. Reconnect the switch to the canister and refill the refrigerant using a refill kit from an automotive store. Fix an Air Conditioning Not Working Video. 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. . 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