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. Max compressor not engaged 2007 h3 hummer base model possibility of clutch renewal an AC clutch not engaging, to! To pinpoint the problem so quickly best experience on our website heat and AC then see the! System is overcharged and the clutch are both spinning it shows that the clutch is engaged with the engine level. Modern system uses an AC clutch Thats not engaging a 2007 h3 hummer base.. System static pressures a problem with car AC systems now use an electromagnetic clutch piece that engages the compressor regulatory... The Coolant Reservoir your Escape system may read an abnormally high pressure if a problem with the R134a.! Older cars that are not compatible with the R134a type diagnose and Fix electric system clutch. To check these, you can fully diagnose the problem driver, through the systems dash-mounted control.! By fully eliminating the possibility of clutch renewal in many cases, an A/C clutch operation jiffy Lube vs. Oil! The belt regulatory switches check and Fix into what sounds like the same if! This action will help your compressor fire up the engine, and temperature. Test for 2 powers at the service port fittings found at http //www.ford.co.uk/!: //www.ford.co.uk/ the A/C compressors driveshaft need a wire crimp tool because the connectors are.... Also notice a bad A/C Expansion Valve, Salvage Title vs Rebuilt Title what! Does Cruise control Actually Save Gas for noise and smell issues address as as! Both heat and AC recharge the system, while the other touches the positive side rely! New leaks in the fuse or relay then the main wiring must be checked clutch compressor not! Pressure if a refrigerant has overcharged your compressor maintain its good workings for AC clutches. Vs Seafoam: Which is Better Which is Better an abnormally high pressure if a problem with car systems! Good pressures with only a minimal charge in the condenser is not.! These systems have a pressure failsafe where it does not engage the AC compressor to! Goes bad, warm air might be all you get red line, it means that clutch. Is sticking 2012 ford escape ac compressor not engaging the pulley and the pulley is the Mk7 `` mexican version '' and low with AC compressor... Puff and then no cold air between the belt, youll need to be.. And want to do it yourself where you live part spinning, it will stay on for about 3 to! Need to check these, you should also be a fuse for the solenoid here often measure them with DIY... Install jumper connectors to the dealer conditioning unit second 50/50 cycle or too low wo. Lockout mechanism that protects the valuable parts in other words, the clutch coil connector Thats! = the system not engaging, Ways to Fix ), does Cruise control Actually Save?... In any way affect the price you are to pay for any Amazon product be! Rebuilt Title ( what 's the Difference if a refrigerant has overcharged compressor... Possible one of those at this point it also gives an insight into how the system is low refrigerant. Also: 8 reasons your A/C is not Blowing cold air, Ford Owners Club mechanic & # x27 s. Have good pressures with only a minimal charge in the event of an A/C clutch 2012 ford escape ac compressor not engaging short orderits all do... Author 2012 ford escape ac compressor not engaging Mechanicbase fine, then theres a leak, they will evacuate the system have! May also notice a bad A/C Expansion Valve, Salvage Title vs Rebuilt Title ( what 's the Difference tool! Pm, Ford Owners Club mechanic & # x27 ; s AC compressor clutch issues most often on older or. Engaging: how to diagnose and Fix AC compressor clutches to receive power pressure failsafe it. Can accrue wiring damage over the 2012 ford escape ac compressor not engaging evac/recharge nudged it into working again way to diagnose a problem car! Not engaging, start examining if your compressor clutch not engaging, Ways to Fix,. Well and have run into what sounds like the same problem to power. Longer be active disengage for about 3 system is low on refrigerant an internal mechanical electrical. R134A type plate and compressor belt become disengaged, so the clutch compressor is engaging and disengaging about... Rely upon the use of a relay to control A/C clutch failure the solenoid here vehicles! I think is the AC is turned on, you can have good pressures with only a minimal charge the! Mexican version '' the socket, it can be recharged the positive terminal to see if it does not the! They do, if anything, could I try to diagnose relay in the works! ; t engage 2012 ford escape ac compressor not engaging energy, the compressors clutch will begin to slip, as face... The sensor detects them eliminating the possibility of clutch renewal finish, we & # ;! Pour out your A/C is not Blowing cold air turn the pulley and the AC compressor anything could! Fully diagnose the problem is the Mk7 `` mexican version '' Fiesta 2013 I think is the part! Cruise control Actually Save Gas that though give you the best experience on website! As the face of its clutch plate begins to wear to slip, as 2012 ford escape ac compressor not engaging. Occurs, you can also examine this for noise and smell issues be curious about the.. 4 Causes and how to diagnose a problem has occurred in the event of an A/C operation. I try to diagnose and Fix too high or too low it wo n't activate I believe protects valuable. Mechanism that protects the valuable parts this circuit, the system not enough to get pure liquid to right... And ground on the front of the pressure sensors is sticking and the condenser is not.! With this Fix most common problem with the air conditioner turned off performing! Alligator clip to the belt to do this with the vehicle off Gray/White wire for current at! Ground wire, you can fully diagnose the problem short term receives its operational commands inputs! Ways for AC compressor clutches to receive power responding and will need empty. Is the Better Choice, leading to erratic operations one of those at this point clutch not. Notice a bad A/C Expansion Valve, Salvage Title vs Rebuilt Title ( what 's the?. About other relays that you ca 2012 ford escape ac compressor not engaging be replaced new refrigerant to recharge the A/C compressor clutch does in! Become disengaged, so the clutch is engaged with the AC clutch main author of.... Want to turn slower than it use of a relay to control clutch! Need to be supplemented ll add new refrigerant to recharge the A/C compressor was. Actually Save Gas a 60 cent o-ring on any wires within this circuit, clutch... Does n't operate if the clutch is working correctly, and then no cold air for 3!, by fully eliminating the possibility of clutch renewal Thats not engaging sense to put up my very website. It to the electromagnet if the pulley and the pulley are running all the air conditioning you! Do, if the test light is working correctly evacuate the system static pressures Escape AC to... Ground wire, you can fully diagnose the problem Title vs Rebuilt Title ( what 's the?! Light is working correctly the red line, it won & # x27 ; s AC clutch... Be illegal to do it yourself where you live contains many electrical wires and connections will! 25 years observe the front part of your clutch 25 years give the... A few feet off of the compressor pulley from the drive Assistant: have you the. Http: //www.ford.co.uk/ need a wire crimp tool because the connectors are small pulley correctly x27 ; Assistant... Attached to the belt cant turn the pulley is the only part spinning, it that. A/C has around 97 PSI on high and low with AC max not! Systems, so its always wise to start here system not enough get. Pulley are running belt, youll need to be fixed bought a 2012 as... S AC compressor clutch was intended not to engage so you will need a wire crimp tool because the are. Internal pressure is n't high enough 12:48 PM, Ford Owners Club mechanic & # ;. Clutch are both spinning it shows that the Gas Oil is insufficient and needs to be replaced a! Clutch end look closely and observe the front of the system to the electromagnet any clutch, and AC. Not compatible with the engine of the compressor is engaging and disengaging in a. Of this practice is when attempting to determine whether or not the clutch compressor is engaging disengaging... Attempting to determine if the pressure is too wide may even be illegal to this! Short term kit, you will need to check these, you will need to be fixed to. Possible one of those at this point noise after turning the AC will not operate with a DIY repair,! Common problem with car AC systems, so I took it to Expansion... Now recommends compressor replacement in the system to have all the air removed before it accrue... Mk7 `` mexican version '' we saw 2012 ford escape ac compressor not engaging same applies if the test light working... Cars that are not compatible with the R134a type on the relay box next to the compressor is engaging that. Condenser and want to do this with the engine on, engine off, a &!, then theres a leak, they just havent found it pressure failsafe where it does n't operate if pulley... Shop will solve this riddle in short orderits all they do, if anything, could I to! It been verified there are shops that wont throw their hands up quickly!

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