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. Started Sunday at 04:53 PM, By 2. With a visual inspection of the AC compressor clutch, you can determine the reason why it refuses to engage. 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If nothin happens, ac clutch bad. Another possible cause could be leaks in the AC system. Slipping Belt- A slipping serpentine belt can cause the vehicle's AC compressor to turn slower than it . If the clutch does not engage and spin, the problem could be an internal short. Something is telling it no to kick on. 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. Sounds to me like you have a leak somewhere. The condenser, expansion valve and . 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. They checked the levels and the pressure was good before they did anything else. 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. 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. The last thing you want to deal with is a hot car cabin. 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. The A/C compressor is activated by the A/C clutch and driven by the engine's belt. Ill also update when I get a resolution to the problem. $285.95. But now, while its warmer, its impossible to know which of those is the culprit. A failed or sticking relay can prevent power from being delivered to the clutchs coil. We took it back to the mechanic. In order for the AC Condensor to do its job it must stay as cool as it can. This saves additional load from being placed upon a vehicles engine and prevents excessive internal compressor wear. You should first check the electric system, clutch, and other parts for issues and leaks before going ahead with this fix. hiace_drifter Has brand new compressor, drier and not low on freon. The 3rd Time Alright, When My Vehicle Is At Operating Temperature And I Turn On The Heat It Will Blow Heat Then Get Cool After About A Minute. Youre probably experiencing difficulties with your air conditioning (AC) compressor clutch because it is not engaging. Certified Automotive Diagnostic Technician. The next step is to check the high and low-pressure switches in the AC system. 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. Reconnect the switch to the canister and refill the refrigerant using a refill kit from an automotive store. Turning on the AC automatically turns on the radiator fans, hot or not hot. If not on, the condenser will get too hot to work, and the a/c will shut down. It may even be illegal to do it yourself where you live. 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 (Or Is It Just a Convenience? -or-. You should check this area for bad noises and bad smells. . RELATED: 5 Signs of a Bad AC Compressor Clutch (& Replacement Cost). They checked for leaks but found none. That is why the pressure switch is there. However, the fuse could continue to blow because of a more serious electrical fault. 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. 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. 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. In some cases, the wiring may be fine but the harness is the problem. that have created this guide for you so you can understand how the system works If freon is low, it won't engage. PRICE: 84.99. The A/C compressor pressurizes the refrigerant in your air conditioning system. How to Fix A Hard Shifting Automatic Transmission: Tips And Tricks From The Pros. If you find yourself with a locked-up condenser, consider checking around the connection between the compressor and the condenser. 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. The same applies if the freon pressure is too high. 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 AC compressor is getting a command to turn on but is no longer able to, which would indicate that it needs replacing. 0 %. Most vehicles rely upon the use of a relay to control A/C clutch operation. Opposite to an overcharged refrigerant is a compressor that has insufficient refrigerant. back to AC / heater Complaints 271 Crash Tests 3 Lemon Law 7.6 pretty bad Typical. This action will help your compressor maintain its good workings. Ensure that your engine is turned off when performing this inspection. The compressor relies on the oils in the coolant to lubricate and cool down the mechanical parts. If it does have power and you bypassed it then you need to verify power to the compressor. If your AC clutch is not engaging, it's important to find out why and take the necessary steps to fix it. 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 most common reason why your AC clutch is not engaging is that the AC refrigerant level is too low or too high. Do Not Sell or Share My Personal Information. Common Causes (& How to Fix). Limited-Lifetime Warranty. There should also be a fuse for the solenoid here. January 2022 Jason, MAZDA6 shuts down while driving fuel pump not monitored, may be no engine light etc. Method 2: Jump-start The Clutch The process is a bit different for older cars that are not compatible with the R134a type. Pull it and check for both power and ground on the relay through the terminals in the socket. . The AC compressor clutch is a major part of the automotive air conditioning system. 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. You may consider it as the heart of the AC and the refrigerant as the blood. When this coil is engaged, current moves through it to create electromagnetic force. I think you want one of those at this point. These include low or excess refrigerant and insufficient oil. Previously the air didn't work when set at level 2 and 3 of the four levels. If the pulley and the clutch are both spinning it shows that the clutch is engaged with the pulley correctly. Throughout the years Ive been lifting the hood and rolling under, Ive encountered just about every car trouble out there. 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. That activity is pre-programmed into the PCM so it's done regardless of the settings of the HVAC system. The Ford Handbook internet site does not seem to have the Mk6 Fiesta handbook, so I can not tell which relay is which. 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). Is this normal? 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. In this website, you will have access to a wealth of tips, techniques as well as important nuggets of car wisdom essential to maintaining your ride. Ford Fiesta 2013 In some AC clutches, you will find some spacer shims that can be removed to extend the life of the clutch a little more. thanks for the reply guys, this is what the repair manual says:Check A/C Clutch Coil Current Draw. The leak could be from the compressor itself or anywhere else across the AC . Bengi This isnt too expensive to replace and is better than having to fix a new AC compressor. Checking in the engine bay for some fuses I have 2 fuses in total behind the battery - I cannot find any literature as to what they are but I am guessing one is the starter motor and the other might be the headlights etc. Compressor does not run in any AC mode. No leaks. This indicates some form of wiring problem. RELATED: 5 Signs Your Cars AC is Low on Freon (& What to do). Next, you should look at the refrigerant hoses, wiring to the compressor and regulatory switches. . It is a 2010. Youll need a jump wire. Adjust as necessary and retest system. The best solution here is to replace the entire unit if you notice that the compressor is bad. Started Tuesday at 12:48 PM, Ford Owners Club Castrol Edge vs. Mobil 1 Oil: Differences & Which Is Better? I am thinking that the puff of vapor is the result of hot gas warming the evaportor and driving off condensed moisture i.e. But the most important thing to remember is the numbers printed on the AC as this will aid you on what wires to jump to one another. Symptoms. Going further would require some basic knowledge of the components of an AC compressor clutch. 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. 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. After inspecting the belt, there can only be two things left that could be happening: 1. . If theres an electrical short with the AC system, too much voltage can run through the compressor. Is it possible for it to be leaking but to have the pressure check out OK? You may turn the air conditioning controls to FULL AC, then fire up the engine. If the fuse does not seem to have any problem, then you may put it back to the system. You may be in one of these two situations, if so, you should check the fuse of the compressor clutch. Mark helpful 55,895 Tracy answered 8 years ago likely to be low on refrigerant. (2012 - 2023) Ford Fusion Battery Sizes & Specs (2006 - 2023) Ford Ranger Battery Sizes & Specs (2000 - 2023) The air seems to work when the outside temp is below 80 degrees but doesn't work for 90% of the time when the temp is higher. #2. Ill need to figure out where to go, but thanks again for all your suggestions. Now they are saying they have found new leaks in the condenser and want to charge us more. Options. Belt: If the serpentine belt is worn . If there are readings on both the high and low sides but they are not . These switches directly influence power/ground delivery to an A/C clutch. In some car models, you may also need ground. That could explain why it works for a while, then stops working. Magnus is the owner and main author of Mechanicbase. Just driving to nowhere alone, with your friends, or your . If you have an account, sign in now to post with your account. sambooka There are many reasons why an AC clutch does not engage. 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. 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. SEE, I think it's a 15 pin plug and two wires change on the plug fro 95 to. This energization of the clutch coil creates a magnetic field, and facilitates clutch engagement, by pulling the clutchs drive plate inward, where it meshes to the clutch body/compressor pulley. To really know you need to hook up a gauge manifold and measure your pressures on the high and low side. The #1 Ford Explorer enthusiast resource for over 25 years! 37 % of the time it's the. There are three reasons why the compressor clutch does not engage, especially if the sensor detects them. By 2. 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. You may also notice a bad smell when you turn on both heat and AC. When problems of this nature arise, an A/C systems gasses fail to circulate, thereby preventing cooling from taking place. Started 12 hours ago, By If one of these sensors is faulty, it can send an incorrect signal to the AC compressor clutch and shut it down even if the pressure is correct. This item: A/C Compressor Kit - Compatible with 2008-2012 Ford Escape. If the compressor clutch cycles on and off rapidly, then the system is most likely low. What have you tried so far? Here are the four main reasons why your Escape's may not be working: Clutch Cycling Switch- AC systems use an electromagnetic clutch to activate the compressor. Today, aftermarket A/C compressors can be purchased for a reasonable cost, eliminating the monetary advantage associated with clutch replacement. Modern automotive A/C systems rely upon the use of several switches to operate efficiently. Perhaps someone can help get to bottom of this. When the heater is on the temperature is above 20 C and the AC can be in defrost mode. In many cases, an A/C clutch will begin to slip, as the face of its clutch plate begins to wear. However, when a vehicles A/C system is turned off, the accompanying clutch coil is de-energized. Started 12 hours ago, By Get a click, we can start troublshooting wires. DizzyG If you click on these links and eventually make a purchase on Amazon, we get a commission. The procedure is simple, start the engine, activate the AC system, and remove the AC clutch connector. 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. The receiver / drier aids in filtering and storing liquid refrigerants until it turns back into a gas. 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. Leighton198 You can use DIY kits to recharge the system, however, you must do so correctly to prevent overfilling the system which could create problems. Upload or insert images from URL. Therefore, a lack of compressor clutch operation can often be traced back to a low refrigerant charge. However, we strongly recommend that this be done by professionals with the right tools. Need the manual, really. Click Here for the 5 best options. To check the fuse, you must first locate the appropriate one for the system. 85ltdcrownvic. 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. [/QUOTE A/C has around 97 psi on high and low with ac max compressor not engaged. We took it to our mechanic (who I trust). They should put in a UV dye so that when it finally happens again , theyll see the leaking area. If it has blown, your only option is to replace it. Martian. Perhaps the best use of this practice is when attempting to determine whether or not the clutch itself has failed. Powered by Invision Community, DISCLAIMER: fordownersclub.com is an independent, unbiased Ford car forum / club for owners of Ford vehicles. What is the AC clutch and how does it work? Its located next to an electromagnetic coil. The AC compressor is getting a command to turn on but is no longer able to, which would indicate that it needs replacing. 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. Something else is the problem. Your previous content has been restored. You could get a digital multimeter and check the voltage and then check the ground at the removed connector. 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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. Fv 27, 2023 . An A/C compressor clutch can fail to engage for a number of reasons, many of which are electrical in nature. 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. It uses a clutch to grab the pulley and cycle coolant through your Escapes AC system. There are many ways for AC compressor clutches to receive power. 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. Each time Ive taken it in, they have said that the refrigerant pressure checks out OK. The independent I use for this vehicle doesnt work on air conditioners, so I took it to the dealer. If current draw is 2.5. Do a Visual Inspection of the compressor: (Check for rust around the clutch plate, check the wiring to the clutch, and check the compressor clutch relay) Turn On the Engine Inspection. Along the way, youll discover some of the best brands of vehicle repair products that you can count on in the future. It should be replaced if not functioning properly. By The AC compressor clutch was intended not to engage so you will know if a problem has occurred in the system. Is the AC clutch supposed to spin all the time? Inspect the belt to see if it is cracked or shiny. and what to Has Been In The Shop 4 Times For This Same Problem. Clear editor. If the pulley and the clutch are both spinning it shows that the clutch is engaged with the pulley correctly. Wiring is another area that could cause an AC compressor clutch not to engage properly. What are the reasons why your AC clutch is not engaging, and how can you fix it? Don't leave it running to long like that though. They did an evacuation and recharge of the system. On most designs there is a place where debris, if there is any, tends to accumulate. To determine if the problem is with the fuse, the first thing to do is turning off the cars engine. It should spin only when the AC system is activated and functional. You can use a jump wire to determine if your Ford Escapes AC compressor clutch is activating properly. 4.5 amps, check clutch air gap. If a system were to be overcharged with refrigerant, the high pressure switch will naturally disable clutch operation. Warm Air is Blowing. My 2010 Ford Escape will blow cold air for about 3 seconds when the AC is turned on. These repair kits come with instructions, so you dont need to worry about how to recharge your refrigerant. Find a repair shop that can put a set of refrigerant gauges on the system. Almost every major automotive manufacturer now recommends compressor replacement in the event of an A/C clutch failure. The clutch is operated by an electromagnetic switch in most vehicles. $62.21. If they have to add ANY freon, then theres a leak, they just havent found it. However, most car AC systems now use an electromagnetic clutch piece that engages the compressor to spin the air conditioning unit. Next is to remove the fuse from the system and check it using a multimeter. 250 PSI / 50 PSI = The system is overcharged and the condenser is not cooling. - My E350's AC was not working (clutch not engaging) so I added two cans (22 oz.) 2012 Ford Escape 3.0 last week my AC went out! Either way, the clutch could fail to disengage. Open the low and high side buttons on the tool gauge and check the reading. Inspect low coolant content or pressure. However, this is seldom the case today. Step three is not that complicated but it is delicate. 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. Tiny bits of metal can clog your AC condenser. If I find something out from my mechanic, Ill give you guys an update. In many situations, an A/C compressor clutch fuse can be to blame for a clutch not turning on or engaging. Another reason could be a relay that the PCM can control, which interprets high and low-pressure sensors condition. TomsFocus 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. Debris in the system will quickly plug the tiny orifices in the system. A/C Stopped Working 2010 Ford Escape This problem may be covered under warranty. There is a high chance that your compressor would have an internal mechanical or electrical problem that needs to be fixed. Definitely dye should be added so that any leaks can be found. 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. Start the engine, and then see if the clutch and the pulley are running. You can have good pressures with only a minimal charge in the system not enough to get pure liquid to the expansion device. Free In-Store or Curbside Pick Up. If you notice rust on the clutch plate, it is an indicator that the compressor is old and would need to be replaced. If you continue to use this site we will assume that you are happy with it. This article intends to give few techniques on how to troubleshoot AC clutch problems. . 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 most noteworthy of these switches include low pressure switches, high pressure switches, and evaporator temperature sensors. When you turn on the air conditioning, you expect to feel cold air pour out. Check the ac pressure - To check the ac pressure or psi, start your car and turn the ac to HI. You have to jump-start it and the process won't take more than a couple of minutes: Examine the oil level in the compressor. This problem occurs most often on older models or ones that have used the AC system excessively. 2. 15 people found this helpful. If you turn on the AC and immediately hear a rattling noise, there are a few potential causes: Compressor: If your AC compressor is beginning to fail, it can make a rattling noise. If the fuse isnt blown, you need to move on to one of the other possible fixes. 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. You could also get warm air instead of cool air. I checked the compressor and the clutch will engage for those first couple seconds and then stop completely. An AC compressor clutch is made up of a friction plate situated next to an electromagnetic coil. Escape A/C Recharge. I will go back to my mechanic and ask if they had to add refrigerant and how much they recovered when they evacuated the system. However, this piece may cost you too much to replace. 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). Basically youre creating instant fog from the high dew point, saturated air, and sudden cold. However, one must also determine the reason behind the fuses failure. Has it been verified there are no leaks at the service port fittings? 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. Ihave Been Hearing Metalick Clicking Sound From Tensioner Since I Bought My Car When It Was 70000 Mikles. The club is not part of Ford Motor Company (UK or Worldwide) nor affiliated with or endorsed by Ford Motor Company (UK or Worldwide) in any way. Do not use compressor oils your AC system manufacturer does not approve. If it is not the refrigerant that is the problem, it may be because the oil level is low and needs to be replaced. 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. I attempted to add a little bit anyways (not much) to see if the clutch would kick on but no luck.
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