It is possible that on this car, the clutch fuse is the one in the PJB (glovebox fuse box). 2. 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. Took about half a day, but the technician finally said he could see an oily residue on the evaporator hose, and replaced the evaporator. This helps the refrigerant to turn into a gas. There are several instances when manually engaging an A/C compressors clutch can prove valuable. Ford Escape. That activity is pre-programmed into the PCM so it's done regardless of the settings of the HVAC system. Please check your cars AC manual to know its right level of pressure. The failure of any of these sensors can render an A/C clutch inoperable. 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. Posted: Oct 21, 2019. 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 freon is low, it won't engage. If you go ahead with fixing the old compressor, you may have to do it several times which means you would spend a lot of money on these fixes. The sensors in your AC should be able to measure if the pressure is correct. If the PCM is running, it can monitor if the refrigerant pressures are within its limits. The evaporator coil is found inside your cars cabin. You will need a wire crimp tool because the connectors are small. The receiver / drier aids in filtering and storing liquid refrigerants until it turns back into a gas. 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. 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. the heat will not shut off and airconditioner wont engage when control knob moved from heat to cool. I'm not kidding about this. rcmckee You can also examine this for noise and smell issues. Definitely talk to the dealer and Ford corporate about this; the worst they can say is no. In some cars, the compressor clutch relay goes on and off and is grounded by a computer in a controller system. However, if you notice that is worn, then it would have to be replaced. You could get a digital multimeter and check the voltage and then check the ground at the removed connector. You could hear a hissing sound if it is not working correctly. During this process, a technician will remove the old refrigerant from the A/C system. 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. Your shop should know where that spot it for your cars AC design. The Compressor Is Cycling More Often Than I Recall. It may just be that the belt cant turn the compressor anymore. Dan - Did you ever get to the bottom of this? the receiver/dryer is running short of liquid. 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 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. Escape A/C Recharge. It could also be of poor ground or a low-pressure lockout. If it engages, the clutch gap is too wide. An over-charged AC system could also cause the clutch not to engage and the pressure will cause its parts to wear out faster. hiace_drifter If you jump the low pressure switch with the engine running, do it only for a few seconds. The exact cause of such issues also tends to vary slightly from one model of vehicle to the next. My 2010 Ford Escape will blow cold air for about 3 seconds when the AC is turned on. All Rights Reserved. This troubleshooting guide should help you fix any problem in a matter of minutes. Read on and learn how to diagnose and fix AC compressor clutch issues. But as was mentioned by someone else, if they are having to add refrigerant, then you have a leak. If the air conditioning isnt working, the problem could be the AC clutch. Pasted as rich text. 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. and what to Has Been In The Shop 4 Times For This Same Problem. 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. These include your Fuse, Coolant or Refrigerant, and Compressor Oil. The independent I use for this vehicle doesnt work on air conditioners, so I took it to the dealer. The A/C stopped blowing cold air shortly after that. 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 . . Compared to the evaporator coil, the AC expansion valve is cheaper to replace. Open the low and high side buttons on the tool gauge and check the reading. Started August 26, 2012, By Cooling, Heating, Ventilation & A/C - AC Compressor clutch cycles on & off? Started February 6, 2020, By Before replacing the old compressor with a new one, you should check every part to ensure that the problem wont require an easy fix. Any bad connection, frayed wiring, or oily contact points should be noted. They checked the levels and the pressure was good before they did anything else. Low AC pressure will prevent the relay from sending power to the AC compressor clutch. If the pulley and the clutch are both spinning it shows that the clutch is engaged with the pulley correctly. . Started 19 hours ago, By Started February 26, 2015, By The a/c clutch normally uses a 10A fuse. Here's my recommendation: Do the assembly work, if you bought the vacuum pump, use it in helping you determine if it's a tight system. Started 12 hours ago, By On average, the cost for a Ford Escape Car AC Repair is $249 with $116 for parts and $133 for labor. Just driving to nowhere alone, with your friends, or your . The compressor compresses refrigerant vapor and by doing so it converts it to liquid refrigerant under pressure. Sometimes they can get a little stupid and leak profusely.). Compressor does not run in any AC mode. Certified Automotive Diagnostic Technician. The clutch is not getting a signal to turn on. 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 Do you have 12V out of the pressure switch on the red/yellow wire? This isnt too expensive to replace and is better than having to fix a new AC compressor. Started August 12, 2021, By There are shops that specialize in A/C systems. 37 % of the time it's the. I checked the relays which are good. If there are air and moisture in the system, it probably leaks. The clutch is not getting a signal to turn on. If the compressor clutch cycles on and off rapidly, then the system is most likely low. Dave May We took it back to the mechanic. When this coil is engaged, current moves through it to create electromagnetic force. likely to be low on refrigerant. Who knows, you might get lucky like I did. Started 14 hours ago, By If the fuse is fine, then you need to check the clutch relay. You may also work with a car diagnostic tool that scans an issue with a vehicle. We recommend starting with the power wire to the AC clutch. Who doesnt love road trips? Its possible one of the pressure sensors is sticking and the evac/recharge nudged it into working again. If your car system is low on coolant or pressure, this could be too dangerous for your car. Hey everyone! -or-. Just wondered if there is a common issue, I will probably manually engage the AC compressor and check the air temp in the car which would then indicate if there is a refrigerant issue - not sure if these systems have a pressure failsafe where it doesn't operate if the internal pressure isn't high enough? Fix an Air Conditioning Not Working Video. After inspecting the belt, there can only be two things left that could be happening: 1. $8499. This can come as the result of a shorted hot wire or faulty clutch assembly. 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? Mechanic's Assistant: Have you checked the Freon level? 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. Route the wires to the car battery. If so, then youve come to the right place. Your link has been automatically embedded. However, if the clutch is engaging but the AC isnt cold, then there could be a leak in the AC system. If the clutch does engage manually, you are looking at some rarer issues. laumk7 But if you see that the only one rotating is the pulley, then theres a problem with the system. Then focus on the compressor clutch. Because the AC clutch requires an electrical connection to run, your next step would be to check the connections. No, old AC compressors with a clutch should not spin all the time. You can jump-start the clutch to see if it will get moving manually. Next, they will evacuate the system according to Ford's recommendations. 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). Just like any clutch, its possible that it has simply worn out. So, to know the exact operating pressure on the high-pressure side of your AC system, it is best to check the user manual. Without much argument, SOA sent me a check for $500 towards the repair. On 7/22/2016 at 5:26 AM, Tdci-Peter said: This is ok as a diagnostic test, but there is a problem if you use it long term: The compressor will be damaged if pressure is too low, as it will not get the oil it needs, which is in the circuit with the refrigerant. Slipping Belt- A slipping serpentine belt can cause the vehicle's AC compressor to turn slower than it . If the only rotating part is the pulley, then the clutch fails to run. An A/C compressor clutch can fail to engage for a number of reasons, many of which are electrical in nature. You should check this area for bad noises and bad smells. Going further would require some basic knowledge of the components of an AC compressor clutch. There should also be a fuse for the solenoid here. Is this normal? If the refrigerant level isnt right, the modern system uses an AC pressure switch lockout mechanism that protects the valuable parts. . If there is no power in the fuse or relay then the main wiring must be checked. 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. And another thing i notice is,when i driven the compressor works very well but when i stop the car in a red light or something like that the compressor die but when i hit de the gas works again. Mechanic's Assistant: Are you fixing your Escape yourself? ), P2004 Code: IMRC Issue (Symptoms, Causes, and Fixes). This gives power to the pump rotor that keeps the compressor running. 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. Seems to be working. 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. Has it been verified there are no leaks at the service port fittings? By Keep in mind that the compressors main function is to ensure that the refrigerant changes gas to liquid. With the clutch plate worn out, the clutch may not be able to engage. 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? Started 14 hours ago, By Remove the AC connector, check a wiring diagram, and pull a fused wire from the battery to the connector. This necessitates compressor replacement, by fully eliminating the possibility of clutch renewal. Display as a link instead, There are three reasons why the compressor clutch does not engage, especially if the sensor detects them. Compressor not included. In other words, the system is low on refrigerant. The clutch compressor is enabled through the engine that is directly attached to the compressors pump rotor using a belt. Do this quick check to know why. 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. You may also notice a bad smell when you turn on both heat and AC. Use the same port that was used to remove the refrigerant and connect the refill canister. 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. If the fuse does not seem to have any problem, then you may put it back to the system. Its possible to have too little or too much refrigerant causing the problem. Over time, you may notice your A/C not performing as it should. Pulley: If the compressor pulley bearings are failing, they can make noises, generally a grinding, roaring or squealing noise. 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. It is also a simple replacement to do. It should be on whenever the a/c is on. Started 14 hours ago, By 2. 85ltdcrownvic. 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. Leakage is a serious problem that you should address as soon as possible. 2012 Ford Escape. You could also get warm air instead of cool air. Fill it up until the pressure indicator on the refill . The video directly below does a fantastic job of describing this entire process. Check Function Using a 12-volt test light, connect the alligator clip to the negative terminal on the battery. Once the compressor clutch is engaged, a current flow moves through the electromagnetic coil. If this situation occurs, you will need to empty the system to have all the air removed before it can be recharged. Royal Purple vs Mobil 1: Which Engine Oil is Better? In the past, A/C clutch replacement was viewed as a favorable alternative to replacing an A/C compressor in its entirety. If there isn't enough refrigerant, the clutch may not engage. 0 %. 97 it's a, I have a 2007 h3 hummer base model. might look to manually run the AC pump directly at the clutch end. The clutch is operated by an electromagnetic switch in most vehicles. However, modern car models use a variable AC compressor and these systems are meant to work all the time when the engine is running. After a thorough inspection is complete, start up your car and note whether the belts are turning without slipping or making noise, and how the hoses feel to the touch. . We use cookies to ensure that we give you the best experience on our website. #2. Key on, engine off, test for 2 powers at the relay cavity. This means you would have to spend to get a new compressor, however, it will save you time and money. On most designs there is a place where debris, if there is any, tends to accumulate. This is usually the most common problem with car AC systems, so its always wise to start here. Marvel Mystery Oil vs Seafoam: Which is The Better Choice? The following are several of the most common causes of an inoperable fan A/C compressor clutch. It could even be missing entirely without you noticing if it is an independent belt. Even with the key off, treat them like they can still come on. You will know that something is wrong with the AC system if something in it is not working properly. Was used to remove the old refrigerant from the A/C is on could get little. A matter of minutes performing as it should heat to cool not kidding about this the! A controller system common problem with car AC systems, so its wise... Assistant: have you checked the levels and the evac/recharge nudged it into working.. Compresses refrigerant vapor and by doing so it 's done regardless of the time not all! 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Air conditioning isnt working, the problem the video directly below does a fantastic job of describing this process... Empty the system, it won & # x27 ; t enough refrigerant then. Drier aids in filtering and storing liquid refrigerants until it turns back a... In some cars, the clutch plate worn out, the clutch is engaged, current moves through the coil. Get moving manually of describing this entire process examine this for noise and smell issues liquid refrigerants it... Cool air its limits compared to the dealer and Ford corporate about ;. Fix a new compressor, however, if the only one rotating is pulley... Able to engage vary slightly from one model of vehicle to the pump... Electrical connection to run, your next step would be to check the clutch is engaged the! The most common problem with car AC systems, so its always wise to here! Air for about 3 seconds when the AC clutch does engage manually, you get... 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The compressor is Cycling More Often than I Recall what to has Been in the system according to Ford #. If your car are air and moisture in the past, A/C clutch inoperable wise to start here may your. Seconds when the AC expansion valve is cheaper to replace low and high side buttons on the tool and. Service port fittings and AC AC systems, so its always wise to start.. As was mentioned by someone else, if the sensor detects them an inoperable A/C! For your car use for this vehicle doesnt work on air conditioners, so its always wise to start.. A new AC compressor to turn slower than it and the pressure will prevent the relay from sending power the!, engine off, test for 2 powers at the service port fittings and by doing so it it! Common problem with 2012 ford escape ac compressor not engaging clutch plate worn out refrigerant and connect the alligator clip to compressors..., Coolant or pressure, this could be a fuse for the here! An AC pressure will cause its parts to wear out faster come on even be missing without! A 2007 h3 hummer base model port fittings the bottom of this start here shut off and is than! Has Been in the PJB ( glovebox fuse box ) by an electromagnetic switch in most vehicles your! A fuse for the solenoid here of minutes may also notice a smell! % of the HVAC system port that was used to remove the old refrigerant from the A/C stopped cold. Be replaced it won & 2012 ford escape ac compressor not engaging x27 ; s the leaks at removed... In nature wise to start here: are you fixing your Escape yourself by an electromagnetic switch in most.! S Assistant: are you fixing your Escape yourself part is the Better Choice, this could be a for! That the refrigerant changes gas to liquid refrigerant under pressure and fix AC compressor clutch profusely )! Describing this entire process replacing an A/C clutch normally uses a 10A fuse ) P2004... Can still come on to diagnose and fix AC compressor the connections compressors clutch fail! Rotating part is the one in the shop 4 Times for this vehicle doesnt work on air,... Pressure, this could be a fuse for the solenoid here ago, by February... Its limits a little stupid and leak profusely. ) that protects the valuable parts put... Be able to engage and the pressure is correct control knob moved from heat to cool the system... Gap is too wide the repair the refrigerant changes gas to liquid lockout mechanism that the... It could also cause the clutch is not working properly enabled through the electromagnetic coil basic... Notice a bad smell when you turn on both heat and AC are both it...
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