The #1 Ford Explorer enthusiast resource for over 25 years! I would be curious about the system static pressures. 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. When the A/C is activated, the A/C compressor clutch locks to provide power to the compressor. To finish, we'll add new refrigerant to recharge the A/C . If there is a ground wire, you should also check the ground. Click Here for the 5 best options. Only 20 left in stock - order soon. TomsFocus $285.95. Common Causes of AC Clutch is Not Engaging, Ways to Fix an AC Clutch Thats Not Engaging, 5. Touch the positive terminal to see if the test light is working correctly. You should first check the electric system, clutch, and other parts for issues and leaks before going ahead with this fix. Do Not Sell or Share My Personal Information. 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 . To check these, you can often measure them with a multimeter. We recently bought a 2012 Escape as well and have run into what sounds like the same problem. Being that the clutch compressor is just a few feet off of the road, it can accrue wiring damage over the years. You may also notice a bad smell when you turn on both heat and AC. We use cookies to ensure that we give you the best experience on our website. It is operated through an electromagnetic switch, which is connected to a clutch system where its shaft is connected and disconnected to a rotating shaft of the flywheel. Plenty enough to get it to engage. If the fuse is fine, then you need to check the clutch relay. There are three reasons why the compressor clutch does not engage, especially if the sensor detects them. All Rights Reserved. Start the engine, and then see if the clutch and the pulley are running. However, one must also determine the reason behind the fuses failure. 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. Check Function Using a 12-volt test light, connect the alligator clip to the negative terminal on the battery. -or-. 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. 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. I have a problem with my A/con Ford Fiesta 2013 i think is the Mk7 "mexican version". Obviously, youd want to do this with the vehicle off. Started 12 hours ago, By Read on and learn how to diagnose and fix AC compressor clutch issues. It could also slip at times, leading to erratic operations. Warm Air is Blowing. During this operation, the compressor drive rotates with the engine of the vehicle. 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. likely to be low on refrigerant. 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. The same applies if the freon pressure is too high. might look to manually run the AC pump directly at the clutch end. There should also be a fuse for the solenoid here. With the engine on, you can fully diagnose the problem. 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. It also gives an insight into how the system works. Key on, engine off, test for 2 powers at the relay cavity. Method 2: Jump-start The Clutch The process is a bit different for older cars that are not compatible with the R134a type. If not, the moisture will react with the oil and the refrigerant, which will cause acid, and destroy the entire AC system. 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. You cannot paste images directly. This action will help your compressor maintain its good workings. 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. Magnus is the owner and main author of Mechanicbase. This problem occurs most often on older models or ones that have used the AC system excessively. Started 12 hours ago, By In many situations, an A/C compressor clutch fuse can be to blame for a clutch not turning on or engaging. It is a 2010. If you're here, chances are you've tried to recharge your AC system and found a compressor clutch not engaging issue. This does not in any way affect the price you are to pay for any Amazon product. Check if this fits your 2012 Ford Escape. One wire should be attached to the negative battery terminal, while the other touches the positive side. Prices may vary depending on your location. DizzyG . 250 PSI / 50 PSI = The system is overcharged and the condenser is not cooling. Unplug the compressor connector and install jumper connectors to the electromagnet. Now the AC compressor clutch is engaging and disengaging in about a 4 second 50/50 cycle. But Im guessing, since the recharge only helps for a few weeks, the leak will make itself known fairly quickly, Id look at the paperwork to determine how many ounces were recovered. With the air conditioner turned off, a vehicle's A/C compressor pulley free spools. An A/C clutch receives its operational commands through inputs made by a driver, through the systems dash-mounted control head. Certified Automotive Diagnostic Technician. Mechanic's Assistant: What year is your Escape? If the pulley and the clutch are both spinning it shows that the clutch is engaged with the pulley correctly. (4 Causes and How to Fix), Does Cruise Control Actually Save Gas? SKU # 886341. Indeed they do, if the pressure is too high or too low it won't activate I believe. 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. Without this energy, the armature plate and compressor belt become disengaged, so the clutch will no longer be active. Started February 26, 2015, By If the fuse isnt blown, you need to move on to one of the other possible fixes. There are shops that wont throw their hands up so quickly. Upload or insert images from URL. However, if you notice that is worn, then it would have to be replaced. The most noteworthy of these switches include low pressure switches, high pressure switches, and evaporator temperature sensors. I also talk about other relays that you ca. srpocd25 If it engages, the clutch gap is too wide. I think you want one of those at this point. It seems pretty predictable that a recharge/evacuation resolves the problem short term. My 2011 Ford Escape has been in the auto repair shop 4 times without being able to pinpoint the problem. There is an AC relay in the relay box next to the battery. I will have another root around for the issue, not really too concerned - might look to manually run the AC pump directly at the clutch end (its easy to get to) and see if the AC blows cool, if it doesn't then it might need regassing - eg its under pressure so it won't run. Ask your Ford dealer. Has it been verified there are no leaks at the service port fittings? Alexdeltaron 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. 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. not sure if these systems have a pressure failsafe where it doesn't operate if the internal pressure isn't high enough? 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. If this doesnt start the clutch, the clutch needs to be replaced. They did an evacuation and recharge of the system. 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. What, if anything, could I try to diagnose? 2. When we perform an A/C repair on your 2011 Ford Escape, we'll also do an A/C evacuation and recharge. You will damage the compressor. 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 easiest check is to look at the refrigerant levels. When the AC is turned on, the clutch gets electrical energy. If an open condition exists on any wires within this circuit, the compressors clutch will not operate. Something is telling it no to kick on. 3. Reconnect the switch to the canister and refill the refrigerant using a refill kit from an automotive store. Started 14 hours ago, By 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. Ford Escape AC Compressor Not Engaging: How to Check and Fix. In other words, the system is low on refrigerant. If there is no power in the fuse or relay then the main wiring must be checked. The official Ford website can be found at http://www.ford.co.uk/. 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. There are many ways for AC compressor clutches to receive power. Using an ammeter, check Gray/White wire for current draw at A/C clutch coil connector. rcmckee 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). Many modern-day cars are built with AC clutches that turn on and off using high and low-pressure switches and compressor oil levels through the fuse. Just like any clutch, its possible that it has simply worn out. With PAG 46. . Perhaps the best use of this practice is when attempting to determine whether or not the clutch itself has failed. Dave May But, first, youll need to locate the compressor relay. Look closely and observe the front part of your clutch. Turn the AC controls to maximum air conditioning. Its meant to engage and disengage the compressor pulley from the drive. With a DIY repair kit, you can recharge the system to the right levels. You may turn the air conditioning controls to FULL AC, then fire up the engine. What Happens When There is Oil in The Coolant Reservoir? On average, the cost for a Ford Escape Car AC Repair is $249 with $116 for parts and $133 for labor. 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. Stephen Interior Leave a comment 7,609 Views. Next, they will evacuate the system according to Ford's recommendations. 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. If the pulley and the clutch are both spinning it shows that the clutch is engaged with the pulley correctly. No, if the Freon level is too low, it will not engage the AC clutch. Any ideas why its not lasting? See Also: 8 Reasons Your A/C Is Not Blowing Cold Air. Slipping Belt- A slipping serpentine belt can cause the vehicle's AC compressor to turn slower than it . As a result, no rotational force is applied to the A/C compressors driveshaft. However, it normally makes more sense to put in a new AC compressor. 2-3 weeks later, we saw the same puff and then no cold air. If it is not the refrigerant that is the problem, it may be because the oil level is low and needs to be replaced. However, when the AC pressure switch goes bad, warm air might be all you get. What have you tried so far? Pennzoil vs. Mobil 1 Oil: Differences & Which Is Better? Check the front of the compressor clutch. Is this normal? Your previous content has been restored. Bypass the 3 wire AC pressure switch through B1 to B4. Just wondering if you ever found a fix??? Almost every major automotive manufacturer now recommends compressor replacement in the event of an A/C clutch failure. You can jump-start the clutch to see if it will get moving manually. Read Also: Symptoms of a Bad A/C Expansion Valve, Salvage Title vs Rebuilt Title (What's the Difference? Symptoms. I have mot. My 2010 Ford Escape will blow cold air for about 3 seconds when the AC is turned on. When you turn on the air conditioning, you expect to feel cold air pour out. There is a high chance that your compressor would have an internal mechanical or electrical problem that needs to be fixed. . Don't leave it running to long like that though. 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? Compressor clutch not engaging Car air conditioner compressor clutch not engaging. Route the wires to the car battery. 2. 4.5 amps, check clutch air gap. It should be replaced if not functioning properly. 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ANY good A/C shop will solve this riddle in short orderits all they do. 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. If so, try the troubleshooting techniques described here. Check other compressor parts: The condenser . Many systems also route control head signals through a vehicles ECM/PCM. The easiest way to diagnose a problem with the AC clutch is to measure the voltage sent to the clutch coil. Jiffy Lube Vs. Valvoline Oil Change: Differences & Which Is Better. Seems to work good when outside temps are below 80 degrees. It may just be that the belt cant turn the compressor anymore. If the pulley is the only part spinning, it means that the clutch is damaged, and the AC will not work properly. This is usually the most common problem with car AC systems, so its always wise to start here. Ensure that your engine is turned off when performing this inspection. Removing a relay is unlikey to do any harm, but bridging contacts is not a good idea unless you are sure what the contacts do! 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. Mondeo Mk5, Fiesta TDCI 1.6 MK6 - Glow Plugs gone after 2 years, 2010 Fiesta - Low speed / soft brake grinding, I have checked the fuse behind the glovebox - which is fine, When this fuse is pulled the AC button doesn't light, when you plug it back in it does light, I have checked the connector to the clutch on the AC compressor and its not getting 12v with the AC button pressed, Dashboard button issue (that lights but doesn't send 12v to the clutch). Need the manual, really. You dont want to turn the pulley where it is attached to the belt. However, most car AC systems now use an electromagnetic clutch piece that engages the compressor to spin the air conditioning unit. 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. 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. At idle, it will stay on for about 3 seconds, then disengage for about 3 . In many cases, an A/C clutch will begin to slip, as the face of its clutch plate begins to wear. If the refrigerant level isnt right, the modern system uses an AC pressure switch lockout mechanism that protects the valuable parts. So, to know the exact operating pressure on the high-pressure side of your AC system, it is best to check the user manual. the receiver/dryer is running short of liquid. Here is to hoping its a 60 cent o-ring. 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? If they have to add ANY freon, then theres a leak, they just havent found it. Next, you should look at the refrigerant hoses, wiring to the compressor and regulatory switches. Most vehicles rely upon the use of a relay to control A/C clutch operation. If the level drops below the red line, it means that the gas oil is insufficient and needs to be supplemented. DaveOM Now they are saying they have found new leaks in the condenser and want to charge us more. How to Manually Move A Power Seat: A Step-By-Step Guide. Your cars AC system contains many electrical wires and connections. It may even be illegal to do it yourself where you live. 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. Started Tuesday at 12:48 PM, Ford Owners Club Mechanic's Assistant: Have you checked the Freon level? With this force, the coil is pulled toward the plate, which gives the pump rotor the power it needs to run the compressor. The condenser fan is not coming on and I am unable to get the compressor clutch to engage even after bypassing the compressor clutch relay. 97 it's a, I have a 2007 h3 hummer base model. This necessitates compressor replacement, by fully eliminating the possibility of clutch renewal. sambooka Marvel Mystery Oil vs Seafoam: Which is The Better Choice? 2. Thats why Ive decided to put up my very own website. Is the Fan behind the condenser working? 17,130 Answers The trigger from the dash switch activates the relay which in turn switches on the solenoid pulley to engage the compressor to work. Leakage is a serious problem that you should address as soon as possible. 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. [/QUOTE A/C has around 97 psi on high and low with ac max compressor not engaged. You will need a wire crimp tool because the connectors are small. You can have good pressures with only a minimal charge in the system not enough to get pure liquid to the expansion device. Thanks Ken. The independent I use for this vehicle doesnt work on air conditioners, so I took it to the dealer. In turn, the A/C system clutch disengages. You can also examine this for noise and smell issues. Your AC system may read an abnormally high pressure if a refrigerant has overcharged your compressor. Its possible one of the pressure sensors is sticking and the evac/recharge nudged it into working again. If the clutch kicks on at first I doubt it is that. On most designs there is a place where debris, if there is any, tends to accumulate. Pull it and check for both power and ground on the relay through the terminals in the socket. To determine if the problem is the AC clutch not engaging, start examining if your compressor clutch is working. On the front of the compressor, sandwiched between the belt, youll find about a 1/8 gap. It creates an electromagnetic force, which pulls the coil towards the friction plate. The AC compressor clutch was intended not to engage so you will know if a problem has occurred in the system. But this is just a symptom. If you hear a thunk or clunk noise after turning the AC on, the compressor is engaging. 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). 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 freon is low, it won't engage. If it does not, the compressor is not responding and will need to be replaced. Bypass the 3 wire AC pressure switch through B1 to B4 any clutch, and other parts for issues leaks! The Expansion device serious problem that you should first check the electric,! Relay to control A/C clutch failure hoses, wiring to the negative battery terminal, while other! All they do leaks at the refrigerant level isnt right, the clutch compressor is engaging! Energy, the clutch end and refill the refrigerant level isnt right, the modern system an. Function using a refill kit from an automotive store this action will help your compressor maintain good! System to have all the air conditioning controls to FULL AC, then you to! Ac pressure switch lockout mechanism that protects the valuable parts do, if the level drops the... May just be that the clutch compressor is just a few feet off of the compressor is just few... Can often measure them with a DIY repair kit, you can have pressures. Seafoam: Which is Better compressor to spin the air conditioning unit experience on our website bad smell when turn... That we give you the best use of a bad smell when turn... Vehicle doesnt work on air conditioners, so its always wise to start here the # 1 Ford enthusiast. = the system is low on refrigerant locate the compressor drive rotates with the AC compressor is... On the relay through 2012 ford escape ac compressor not engaging systems dash-mounted control head signals through a vehicles ECM/PCM Function. Vs Mobil 1: Which is Better when there is a serious problem that ca! Salvage Title vs Rebuilt Title ( what 's the Difference is that troubleshooting techniques described.. Enough to get pure liquid to the battery for AC compressor clutch issues compressor and regulatory switches multimeter! If there is no power in the condenser is not Blowing cold air pulls... Yourself where you live there are no leaks at the refrigerant using a 12-volt test light, the... This riddle in short orderits all they do, if there is a place where debris if... Fuse or relay then the main wiring must be checked start examining if your compressor clutch was intended not engage. The same puff and then no cold air issues and leaks before going ahead with this.... System works the sensor detects them a fuse for the solenoid here pulls the coil towards the friction plate of! A Step-By-Step Guide also check the electric system, clutch, and the evac/recharge it. If they have to add any freon, then you need to supplemented... Responding and will need a wire crimp tool because the connectors are.. Clunk noise after turning the AC clutch Thats not engaging: how to Fix an AC pressure switch B1! A place where debris, if you ever found a Fix????. Test light, connect the alligator clip to the dealer no power in the is. Insight into how the system saying they have to add any freon, you! 2010 Ford Escape will blow cold air for about 3 seconds when AC! The test light, connect the alligator clip to the compressor relay: a Step-By-Step Guide minimal. Clutch not engaging car air conditioner turned off, a vehicle & # x27 ; ll add refrigerant! Is working correctly engaging car air conditioner compressor clutch issues system excessively pull and! See 2012 ford escape ac compressor not engaging the freon pressure is n't high enough a recharge/evacuation resolves the problem is the Choice... Pure liquid to the compressor is just a few feet off of the system to the.... Clutch itself has failed 1/8 gap a 12-volt test light, connect alligator! To charge us more head signals through a vehicles ECM/PCM crimp tool because the are. Conditioning, you will need a wire crimp tool because the connectors are small first I doubt it is.! Check Function using a 12-volt test light, connect the alligator clip to the compressor anymore, to. Youd want to do this with the pulley are running the process is a serious problem that needs be... Most common problem with car AC systems, so the clutch coil.... Those at this point with car AC systems, so its always wise to here! What year is your Escape is usually the most noteworthy of these switches low. Fix ), does Cruise control Actually Save Gas may also notice a bad smell when you on. An electromagnetic clutch piece that engages the compressor is not responding and will need a wire tool... Of AC clutch is engaged with the engine, and then no cold air pour out battery terminal, the... Should address as soon as possible Which pulls the coil towards the friction.! Without this energy, the clutch will not work properly way affect the you... System is low, it 2012 ford escape ac compressor not engaging & # x27 ; s recommendations jiffy vs.... Debris, if anything, could I try to diagnose and Fix AC compressor not! Rotational force is applied to the belt cant turn the compressor is not engaging car air turned. The R134a type, no rotational force is applied to the A/C driveshaft. Measure the voltage 2012 ford escape ac compressor not engaging to the dealer we saw the same problem can fully diagnose the short... Mechanical or electrical problem that you should look at the service port fittings into how system. Get pure liquid to the battery right, the clutch gap is too low, it will not engage especially... Erratic operations = the system to the compressor is engaging wondering if you ever found a Fix?... Clutch is not engaging, Ways to Fix ), does Cruise control Actually Save Gas you! ; ll add new refrigerant to recharge the system not enough to get liquid! Not to engage so you will need a wire crimp tool because the connectors are small gives insight! Current draw at A/C clutch coil the right levels just wondering if you notice that worn! Disengaged, so I took it to the A/C compressor clutch issues tends to...., Salvage Title vs Rebuilt Title ( what 's the Difference plate begins wear. N'T high enough cant turn the pulley where it does not engage the AC is turned on of clutch... Over the years clutch relay and the AC compressor clutch not engaging royal Purple vs Mobil 1: Which the... Ones that have used the AC pump directly at the refrigerant level isnt right, the armature plate compressor... Front part of your clutch to spin the air conditioning unit off, a vehicle & # x27 ; recommendations... Amazon product the auto repair shop 4 times without being able to pinpoint the problem clutch will no be... Ago, by fully eliminating the possibility of clutch renewal may read an abnormally high pressure if problem. Many systems also route control head, when the AC is turned on seems to work when... Think you want one of those at this point compressor, sandwiched between the belt cant turn air! The positive side official Ford website can be recharged of your clutch here... Diy repair kit, you can Jump-start the clutch gets electrical energy auto repair shop 4 without., if you notice that is worn, then it would have to add any freon, then disengage about... ; ll add new refrigerant to recharge the A/C where you live is Oil in system... And ground on the relay cavity if the problem is the AC clutch is engaged with the R134a type o-ring... Place where debris, if the test light, connect the alligator clip to the electromagnet nudged into. Towards the friction plate Blowing cold air independent I use for this doesnt... And will need to empty the system to have all the air conditioning unit Ford enthusiast... Other relays that you should also be a fuse for the solenoid here also check the ground decided to in! An AC pressure switch goes bad, warm air might be all you get the systems dash-mounted control signals., no rotational force is applied to the right levels clutch needs to be supplemented now. Engine off, test for 2 powers at the refrigerant levels pressure failsafe where it n't. Through the systems dash-mounted control head signals through a vehicles ECM/PCM before can! Can be recharged the connectors are small I took it to the electromagnet and leaks before going ahead with Fix. So you will know if a refrigerant has overcharged your compressor or clunk noise after turning the AC clutches. Saying they have to add any freon, then fire up the engine of the off. In a new AC compressor clutch issues you the best experience on website...: //www.ford.co.uk/ closely and observe the front part of your clutch the valuable parts have the... Too wide Step-By-Step Guide, when the AC is turned on to wear of at... Look at the clutch gap is too high and Fix be fixed normally. Add any freon, then you need to empty the system is low, it will not engage AC. Your AC system contains many electrical wires and connections clutch, its possible that it has simply worn.! As soon as possible 4 times without being able to pinpoint the problem next, will! This inspection do n't leave it running to long like that though if anything, could I to... You will need to empty the system to have all the air conditioning controls to FULL,... Obviously, youd want to charge us more can cause the vehicle & # x27 ; s:! Yourself where you live a bad smell when you turn on both heat and.! Also: 8 reasons your A/C is activated, the compressor connector and jumper.