Hi All, I was driving my 2007 Honda Civic EX (175,000km) today and turned on my AC only to find out it isn't working. Jump to Latest Follow 1 - 14 of 14 Posts ... like i said, get down with the car off and spin the clutch of your ac compressor. The PCM disables the compressor clutch if the A/C pressure is more than 2957 kPa (429 psi). AC compressor replacement If you have noticed that your AC compressor is worn out, try to replace it as soon as possible. As mentioned, the ac was cold and seemed working fine after the replacement, but it took a long ride to let me know that the lines were freezing up (due to compressor clutch -always on - never cycling off.) Could I weld the clutch to the pulley so the clutch is always engaged so my AC compressor is always on? Please let me know what you find. By Amuparks Net - 13.05. photo src: www.justanswer.com. When in AUTO mode, the compressor clutch is always engaged (does not cycle on/off). The AC compressor clutch often has a plug with 2 pins. Everything pointed to CCRM. NOTE: I am not a professional mechanic! When the compressor clutch is engaged, a current move through the electromagnetic coil. Ford A/C :: 1999 F150 - Clutch Is Always Engaged Apr 19, 2014. The current one is the AC compressor. My car has 91000 miles. If the auto ac compressor clutch is not engaged, the fuse may be blown, the wire of the clutch coil is disconnected, the clutch coil is bad, the grounding is bad, or the low voltage lock. The A/C system can be engaged by either pressing the A/C switch or during automatic operation. done after compressor was replaced. Now look at the pulley of the air conditioner compressor. Since the clutch engages, there is enough refrigerant in the system (pressure) for the clutch to engage. the compressor does not work all the time.the compressor pulley may be turning all the time,but there is a clutch inside of the pulley,that engages when the compressor is actually working.the clutch engages in and out depending how low you have the setting.in the older cars,there was a setting called max air.on this setting,the compressor would run all the time. I can then start AC again for small amount of time. … Ac Compressor Clutch Stays Engaged. The AC clutch is a part of the AC compressor, the heart of the Air conditioning system. I can turn it back on by either turning the engine off and let it cool off or turn off the a/c for same amount of time. AC Compressor Clutch is Always Engaged, Even With the Relay Pulled. Step 3. If the AC compressor clutch engages when you tap it, try disassembling the compressor clutch and removing all fitted washers, which can extend its life by several thousand miles. Do I have a faulty ignition switch? The HVAC control module sends a class 2 message to the PCM for A/C compressor engagement. June 6, 2019 at 9:05 pm #893696. A/C blows warm. Its the ac clutch, 2010 honda civic, Removing relay, Thats it - Answered by a verified Mechanic for Honda We use cookies to give you the best possible experience on our website. Participant. View Profile View Forum Posts Private Message Donating Users Join Date Aug 2008 Location hamilton,oh Posts 79 Thanks (Received) 0 Likes (Received) 0 Dislikes (Received) 0 Chats 0. #1 98 GTP A/C compressor clutch always engaged. The thing is that my AC clutch will always engage when engine is cold but will shut off about 15-20 after. A/C Clutch Always Engaged. Most modern compressors have a clutch and drive pulley. A bad AC compressor clutch needs immediate fixing. Ac clutch always engaged on 1998 buick century Wat 60 or 90 degrees cluctch is always engaged. An AC clutch compressor is a type of compressor that derives its power from the car engine’s flywheel. I think the ac compressor on my wife's 2008 Camry (2.4L) is stuck engaged. Remove the connector and force it with 12v and ground. A6 (C7 Platform) Discussion - A/C compressor clutch - always engaged - Looking for a little help. I'm sick of this no AC but my truck has way too many problems to spend $300+ on a new AC compressor . When in ECON mode the clutch releases (as expected) so that's fine. Please let me know what you find. The clutch will be enabled after the pressure decreases to less than 1578 kPa (229 psi). My car has an automatic transmission. That being said, I've also read about a Mercedes that doesn't have an ac clutch, but rather the compressor vanes are varied to increase/decrease the compressor pressure. I know there can only be a few parts or situations that can keep current constantly going to the ac clutch. Generally if a compressor clutch is seized, the compressor … Therefore, the system needs to be always properly maintained for it to deliver a satisfying cooling result. Posted by brilus1030 on Sep 17, 2012 The below information is taken from a BMW training document entitled E60 Climate Contril Initial Print Date: 08/03 Revision Date: 09/03 E60 Automatic Heating and Air Conditioning System Purpose of the System The E60 IHKA system is designed using the same criteria as the E65. Pull out the AC fuse and examine the filament inside the fuse. Here is the diagram of the fuse block I said I would send, with the AC compressor relay highlighted in Red. The last 5 series to use a clutch on the compressor was the e39. If it does not, shut the engine off and disconnect the negative battery cable with a socket. The compressor clutch consists of a friction plate positioned adjacent to an electromagnetic coil. 2. I don't think this is normal, as most of them cycle on/off. I found out it isn't blowing cold. Now the clutch is always engaged on my '90 TE 124. Looking at the A/C clutch, it is spinning continuously. if you cant spin it freely then it sounds like its frozen up, and always on. The pulley is belt-driven by one or two V-belts directly from the engine’s crankshaft or by a multi-ribbed V belt or serpentine belt. Attempted to bypass A/C cycling switch, clutch would not engage. I've disconnected the cable to the compressor, checked out the MAS relay and dash control panel but can't see any physical problems. The system wasn't charged when I bought it a month or so ago and last week the compressor started smoking. Since the AC compressor clutch is the one responsible for pressurizing and distributing your AC's refrigerant, you must always take a close look at this component. As most of the vehicles now are equipped with an air-conditioning system, the AC compressor is the most important part which starts the AC cycle and therefore, that’s why if it fails, it decreases the efficiency of the AC system. If the clutch still gives you problems when that relay is remove, then you may end up having to replace the clutch for the compressor. Feedback compressor making noise now. The clutch was erractically chattering in and out but then locked in. So the next thing I did was pump 12v straight into the clutch, and it clicked with the engine off. If there wasn't enough in the system, it wouldn't even do that. A fan clutch is a thermostatic engine cooling fan that can freewheel at low temperatures when cooling is not needed, allowing the engine to warm up faster, relieving unnecessary load on the engine. If the system were where it is supposed to be, the compressor would kick on/off constantly once the system has been run for a little while. so I started the truck back up and took off the connector to the pressure switch and shorted the plug, clutch engaged. What you need now is a schematic diagram to show you the signal wire on the harness going to the ECM, so you could determin whether the ECM actually has control, of the circuit, or has failed to a constant on condition. Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › AC Compressor Clutch Always Engaged › AC Compressor Clutch Always Engaged. My wife's 2000 Mustang a/c recently quit cooling. While there are many red flags to watch out for, we narrowed it down to three. Take Care, Greg A. Billy. AC Problem - Clutch always engaged when on, but not when off. its the front part of the pulley. Take Care, Greg A. A delay can cause serious damage to the air conditioning system and the engine. Checked freon, it was ok. Noticed when the clutch engaged the pressure reading dropped to nothing. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. I've pulled the wire and it still didn't come loose. Robert "R2" Lewis 1991 W250 single cab 5 speed- looking for front dually axle. Regalgs98. Wait for the AC clutch in front of the compressor body to engage and spin. My car has 167000 miles. I disconnected the power to the air conditioning control but still does the same thing. Locate the main fuse box. When I turn the ignition switch to on, the ac compressor clutch will engaged. One is for ground and one for the 12-volt power cable. So then…If you mean the air conditioning compressor clutch, it should only be spinning when it is electrically engaged such as when the selector switch is set to air conditioning or defrost. It is an ominous sign when the clutch engages but the compressor does not spin. AC Compressor always engaged. I looked at the compressor and it seems the clutch is turning all the time, even when the ac button isn't depressed. I bought a 1999 F150 4.6 4x4 recently that is giving me some problems. I replaced the pressure sensor up by the condenser, and still it is not working. Jump to Latest Follow ... to a power robbing device like the AC compressor. The center part (the clutch) should be engaged and should be spining along with the pulley. Hello I have a 2002 RAV. Changing the compressor clutch could be the only solution in this case. The center part on the pulley of the A/C compressor will not spin when you have the air conditioner off or if there is a problem. I hope that helps. Checked voltage at a/c cycling switch and a/c high pressure cutout switch, it was ok. Did not have power to clutch. Replace the fuse if … So before leaving it to the shop to get the AC recharged, I just wanted to vent my thoughts with you guys. It is controlled by a clutch system wherein its shaft is connected and disconnected to the rotating shaft of the flywheel by an electromagnetic switch. Car is a 2003 wagon VR5 (european) with Climatronic. The PCM will provide a ground for the A/C compressor relay enabling it to close its internal contacts to send battery voltage to the A/C compressor clutch coil. My AC is always spending even if the AC is off does the AC always going to be running because I never had a clutch engage is this supposed to work that way with the AC compressor always running can you please give me a little bit inside on what's really going on because that the air is not circulating would be cold . 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