You would rather have the fuse blow than too much voltage make it through the system. likely to be low on refrigerant. Started 14 hours ago, By 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. If you jump the low pressure switch with the engine running, do it only for a few seconds. If you have tried all of the techniques to resolve the issue but did not work, then you should take it to a mechanic and let them check your cars AC system. My Explorer did this in 92/93/94one 60 cent oring and its been good since. You may turn the air conditioning controls to FULL AC, then fire up the engine. Goodmorning, the ac compressor on my ford escape is not engaging. Prices may vary depending on your location. But if the pressure is too low, youre probably looking at a leak in the AC system. But this is just a symptom. When this coil is engaged, current moves through it to create electromagnetic force. Compressor clutch not engaging Car air conditioner compressor clutch not engaging. If you turn the AC off, the clutch loses its electrical energy. You could also get warm air instead of cool air. There is a high chance that your compressor would have an internal mechanical or electrical problem that needs to be fixed. If it is not working properly, consider replacing it with a new one. 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. Pasted as rich text. Definitely dye should be added so that any leaks can be found. It is a 2010. Leakage is a serious problem that you should address as soon as possible. zain611 The evaporator coil is found inside your cars cabin. After inspecting the belt, there can only be two things left that could be happening: 1. Mechanic's Assistant: Have you checked the Freon level? The same applies if the freon pressure is too high. Check the wiring to the clutch for any issues. You can try disconnecting the low pressure switch and bridging the connector , run engine briefly with air con on and see if compressor engages. 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. There are shops that specialize in A/C systems. In many situations, an A/C compressor clutch fuse can be to blame for a clutch not turning on or engaging. Aside from this connection, you would need to visually inspect the rest of the wires running through the system. If you continue to use this site we will assume that you are happy with it. Obviously, youd want to do this with the vehicle off. Theres most likely a leak, bad evaporator, or a bad compressor (that is turning on, but not working). The bypass you tried relies on the fuse listed to have power to the relay. Your last post confused me. By 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. laumk7 The A/C compressor is activated by the A/C clutch and driven by the engine's belt. However, a vehicles A/C system is only as good as its ability to operate properly, without any electrical or mechanical faults. If the compressor engages for 1-3 seconds on a COLD start, there's probably nothing wrong with the compressor or the clutch or its relay. #2. Do NOT jump the low pressure switch to operate the compressor non-stop so you can add refrigerant. Copyright 2023 AutoMobile Remedy, All Rights Reserved. In order for the AC Condensor to do its job it must stay as cool as it can. The only way to re-engage compressor is to turn the truck off, let it sit a few, then crank it back on and you get the same 15-30 secs of cold air, then back to warm. The AC relay (number 20) reads good voltage to the relay outlet. Need to fix your car's air conditioner? Seems to work good when outside temps are below 80 degrees. Do Not Sell or Share My Personal Information. Wiring is another area that could cause an AC compressor clutch not to engage properly. Bypass the 3 wire AC pressure switch through B1 to B4. Now they are saying they have found new leaks in the condenser and want to charge us more. If you notice any bad odor or a hissing sound when you turn on both your cars heat and AC, it means that your evaporator coil is either leaking or broken. Performance upgrades, maintenance, modifications and problem solving. How to Manually Move A Power Seat: A Step-By-Step Guide. Before replacing the old compressor with a new one, you should check every part to ensure that the problem wont require an easy fix. Just wondering if you ever found a fix??? We took it to our mechanic (who I trust). However, one must also determine the reason behind the fuses failure. 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. These switches control so that the pressure will not become too high or too low. ), P2004 Code: IMRC Issue (Symptoms, Causes, and Fixes). This troubleshooting guide should help you fix any problem in a matter of minutes. RELATED: 5 Signs Your Cars AC is Low on Freon (& What to do). This necessitates compressor replacement, by fully eliminating the possibility of clutch renewal. Youre probably experiencing difficulties with your air conditioning (AC) compressor clutch because it is not engaging. The receiver / drier aids in filtering and storing liquid refrigerants until it turns back into a gas. To determine if the problem is the AC clutch not engaging, start examining if your compressor clutch is working. However, this should not be done unless you are 100% sure of what you are doing, as you can damage expensive parts if you do it wrong. I am thinking that the puff of vapor is the result of hot gas warming the evaportor and driving off condensed moisture i.e. Blower fan works but hot pig tails assuming it's on it way out. Took about half a day, but the technician finally said he could see an oily residue on the evaporator hose, and replaced the evaporator. RELATED: 4 Symptoms of a Bad AC Pressure Switch (High or Low). When the weather is hot, you want to know that your car AC is going to work the way it should. Started 14 hours ago, By Therefore, a lack of compressor clutch operation can often be traced back to a low refrigerant charge. You can use a jump wire to determine if your Ford Escapes AC compressor clutch is activating properly. You can have good pressures with only a minimal charge in the system not enough to get pure liquid to the expansion device. Cold air started blowing again! Compared to the evaporator coil, the AC expansion valve is cheaper to replace. 3. Mark helpful 55,895 Tracy answered 8 years ago They repeated the same evacuation/recharge process again and the A/C started working again. Upload or insert images from URL. If the compressor clutch cycles on and off rapidly, then the system is most likely low. You may consider it as the heart of the AC and the refrigerant as the blood. And most places will roll the diagnostic fee into the cost of repair if they do the work. During this operation, the compressor drive rotates with the engine of the vehicle. You should check for leaks from the condenser, receiver, and any areas where metal piping connections are made. Definitely talk to the dealer and Ford corporate about this; the worst they can say is no. Itll often be located by electric fans. Started 14 hours ago, By Just like any clutch, its possible that it has simply worn out. -or-. Castrol Edge vs. Mobil 1 Oil: Differences & Which Is Better? . $62.21. Clear editor. If the level drops below the red line, it means that the gas oil is insufficient and needs to be supplemented. What Happens When There is Oil in The Coolant Reservoir? The video directly below does a fantastic job of describing this entire process. It is also a simple replacement to do. These include your Fuse, Coolant or Refrigerant, and Compressor Oil. So they are saying there is no leak. Again it will need to be vacuumed and refilled. The AC compressor is getting a command to turn on but is no longer able to, which would indicate that it needs replacing. 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. 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. If you notice that the belt is slipping then you would have to adjust it. If there are readings on both the high and low sides but they are not . Looking for a good online repair manual? We only use the commissions thereby generated to maintain the site. Without much argument, SOA sent me a check for $500 towards the repair. The easiest way to diagnose a problem with the AC clutch is to measure the voltage sent to the clutch coil. It also gives an insight into how the system works. If the fuse is fine, then you need to check the clutch relay. The AC compressor cannot pump the refrigerant if the clutch does not engage. How to check whether your AC clutch is working, Common reasons why the AC clutch doesnt engage, What you can do if your AC clutch wont engage. 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. Powered by Invision Community, DISCLAIMER: fordownersclub.com is an independent, unbiased Ford car forum / club for owners of Ford vehicles. 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. Posted: Oct 21, 2019. Enginge Shut Down Stop Safly Now This Messige Come Every 10 To 20 Minute. Any ideas why its not lasting? Todays modern A/C systems even feature dual-climate control, allowing each of a vehicles occupants to set the in-cabin temperature as desired. When you turn on the air conditioning, you expect to feel cold air pour out. Aug 19, 2018. That is why the pressure switch is there. Going further would require some basic knowledge of the components of an AC compressor clutch. The clutch is not getting a signal to turn on. If nothin happens, ac clutch bad. There are three reasons why the compressor clutch does not engage, especially if the sensor detects them. Perhaps the best use of this practice is when attempting to determine whether or not the clutch itself has failed. 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. If the fuse does not seem to have any problem, then you may put it back to the system. These switches directly influence power/ground delivery to an A/C clutch. Inspect your compressor for an internal mechanical or electrical problem. the receiver/dryer is running short of liquid. SEE, I think it's a 15 pin plug and two wires change on the plug fro 95 to. Seems to be working. But if you see that the only one rotating is the pulley, then theres a problem with the system. If an open condition exists on any wires within this circuit, the compressors clutch will not operate. You cannot paste images directly. Next, they will evacuate the system according to Ford's recommendations. The most noteworthy of these switches include low pressure switches, high pressure switches, and evaporator temperature sensors. Low AC pressure will prevent the relay from sending power to the AC compressor clutch. Marvel Mystery Oil vs Seafoam: Which is The Better Choice? The high pressure is less likely, only if the system is overfilled, or you leave the car in the Sahara desert in full sun for a few hours! Above that, it only blows out hot air. See Also: 8 Reasons Your A/C Is Not Blowing Cold Air. It creates an electromagnetic force, which pulls the coil towards the friction plate. 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. 37 % of the time it's the. If the pulley is the only part spinning, it means that the clutch is damaged, and the AC will not work properly. 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? Electrical energy because it is not getting a signal to turn on do its job it must stay cool! Bad compressor ( that is turning on, but not working ),! Conditioning ( AC ) compressor clutch not to engage properly, especially if pressure. Likely low thereby generated to maintain the site want to know that your car AC is low Freon... The voltage sent to the AC will not operate engine of the components of an AC pressure to... Did this in 92/93/94one 60 cent oring and its been good since insufficient and needs to be vacuumed and.. Consider replacing it with a new one the same evacuation/recharge process again and the A/C compressor is activated by A/C! 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