The clutch turns really slowly and makes a horrid noise. 0 0. mdk68gto, ase certified m tech. ITs showing 3 Does the system have to be recharged to make the clutch engage. have the same problem? The clutch has a friction plate located next to an electromagnetic coil. Classifieds - Engine/Transmission/Transfer Case, BJ42 | FJ43 | BJ44 | FJ45 | FJ45LV | HJ47, North American Clubhouses - Central Region, CA.AB- Rocky Mountain Land Cruiser Association, CO/WY- Horsetooth 4 Wheelers Cruiser Club, TX- Lone Star Land Cruisers - Austin Chapter, TX- The White Trash of the Elwood Chapter, CA.BC- Okanagan-Similkameen Land Cruisers, NV- Battle Born Cruisers of Northern Nevada, AC Compressor Died. The clutch engages, but the compressor turns very slowly. There should be a relay between the A/C amp and the compressor to cut power off based on coolant overheating (if similar to later models). I turned it off, then on, and it did the same thing. • The compressor clutch coil is simply a large coil of copper wire. I whacked it with a long stick-like object and it didn't do anything, so I don't think it's the clutch. My A/c And My Radiator Cooling Fans Quit Working At About The Same Time. how many ohms should this motor show on meter. Jumped it again, works fine??? 2. The compressor clutch consists of a friction plate positioned adjacent to an electromagnetic coil. I'm trying to understand the operation of the AC system on my car so I can bring it back to life. A delay can cause serious damage to the air conditioning system and the engine. 1998 Chevy Malibu 6 Cyl Two Wheel Drive Automatic Pull out the AC fuse and examine the filament inside the fuse. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. Need help with a parts list 97 LX. Compressor with labor runs around $700 or so, right? - Answered by a verified Mechanic for Honda. When the driver requests AC, the system provides power to the clutch coil, thereby generating a magnetic field. Ive got 5v to the temp switch under the intake as well. One is for ground and one for the 12-volt power cable. If I... Air Conditioning Problem That is why the voltage drops so much when you make the connection to the clutch. 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. AC Clutch slipping / AC compressor spinning slowly. by gary (Ponca City, OK.) 33 gal. Q The air conditioning … The low-pressure switch tells the car that the clutch needs to engage and disengage and will shut off the A/C compressor. System has to have a correct charge to function properly. My compressor was acting the same way. So far I have: Checked the fuses for AC and clutch under the bonnet. Wait for the AC clutch in front of the compressor body to engage and spin. Retighten it and see what happens. the clutch is starting to bind. Does the system have to be recharged to make the clutch engage. The AC compressor clutch often has a plug with 2 pins. MMMAN1963 MEMBER; 1998 CHEVROLET MALIBU; 60,000 MILES; The motor is a 2.4 replaced ac compressor and the clutch turns slow while the car is running. JavaScript is disabled. Even when you have the air conditioner cranked to max, the clutch is still cycling between being engaged and disengaged. AC system relays. Do you. I was just about to sell the Opel GT but turns out AC isnt working. Check your car’s workshop manual to find out if your AC system is connected to the WOT switch or to any other protection system that is connected to the compressor clutch. You must log in or register to reply here. 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. 919.167340. motor turns slow then trips breaker work fine last time it was used. However, since it consistently is cycling on and off, it starts to wear and break. It was blowing ice cold yesterday and today up until tonight. In this video, I show you how to tell if a car's AC compressor clutch is engaging. Step 3. This switch is located on the metal canister next to the compressor. Like I wrote in my first post, the magnetic clutch draws a LOT of current (relatively). System has worked well so far. Bueller? This mechanical item pressurizes the entire A/C system and pushes the refrigerated air through the system and ensure that everything works properly. The pulley turns whenever the engine is running, although the compressor clutch is not engaged when the air conditioning is turned off. Turned off the car and the A/C and tried turning the compressor. I noticed that when I jumped the compressor, sometimes the pulley would get a little wobbly, so when I pulled the compressor, the pulley was really loose and seemed that it wouldn't align very well. 11.9cfm. Changing the compressor clutch could be the only solution in this case. Check power wire to the ac clutch 13.96 wtf?? I was thinking it was bearing. It is normal for a vehicles system to cycle the compressor to prevent the internal pressure from exceeding certain maximum pressures within the system. Compressor clutch spinning slowly / AC not working -update posted by xluke on Fri Aug 10 05:09 CST 2007 > V. Compressor clutch spinning slowly / AC not working -update posted by B.C. At startup, im showing 14.34 v at the battery. Got it working! Remove the connector and force it with 12v and ground. This is the black/white striped wire near the connector to the compressor. Something to consider if you haven't changed out your belts in a while. Ok, with the compressor wire connected, it drops to 5.40v..disconnect and it jumps back up. I'm giving up for a couple days, have to work and dont have time to foll with it. You are using an out of date browser. AC system (compressor, condensor, evap., lines, etc.) Put some more coolant in it (by jumping the clutch), and after running just a couple minutes, the compressor/clutch was HOT. For a better experience, please enable JavaScript in your browser before proceeding. It all depends on where you measure the voltage and whether the wires are all connected and energized or not. Solid state devices like the amplifier don't fail by increasing resistance. Instead of a clutch holding tool, I used a bar resting on the engine (blue arrow) to hold the tool removal nut while I turned the center stud that forces the clutch off. With the A/C on, the clutch face IS magnetized and seems like it is attempting to engage spinning slowly and making half turns every so often. Your A/C compressor clutch is one of the most important parts of a vehicle’s air conditioning system. Recently I have noticed a lot of red dust coming from the front of the clutch, and the clutch is squeaky. Got a used compressor off of a newer car with 12k on it. The belt is on the compressor and its spinning but the compressorwheel isnt engaging. Is there an easy way to tell whether the A/C clutch failed, or the compressor? View attachment 2666241 Since I never use it I dont know for how long its been faulty. Golf IV / Jetta IV :: Clutch Engaging Slowly When Turn The AC On Jul 13, 2014. The clutch is a Warner Electric 1443-38. Does this indicate a failing clutch? After sitting for a couple days, the pressure had dropped very low. Got a weird issue that I've never encountered before. i've got a 91 LX 5L and the AC blows cold for 10 minutes or so, then my compressor shuts off. I tried searching but you can't search for just "A/C", so the search was pretty generic and I couldn't find anything similar to my issue. • The clutch body/pulley is rotated by the drive belt when the engine is running and rotates around a pulley bearing. The motor is a 2.4 replaced ac compressor and the clutch turns slow while the car is running. To run this clutch compressor, the engine is connected directly to the pump rotor of the compressor using a belt. My 94 Cherokee (apparently not great AC systems to begin with) seems to be blowing only slightly cool air when AC … Still tracking... May have narrowed it down some, at the wire coming from the ac amplifier behind the glovebox, I have low voltage too. System still cooling is this normal? The AC compressor turns slowly at times. Figured it was low on freon (still r12), but when i got to looking at it, the compressor hub turns very slowly when you turn on the ac (like maybe 20 rpms). If the A/C clutch relay is stuck or the switch is faulty then the clutch will stay engaged. I will takea look at it later, hopefully will do better after taking a fresh look at it. Bad amplifier maybe? Ha, I guess there's no way to know until i know how much juice is actually getting to the ac clutch, as that seems to maybe be the issue. Pulled a vacuum (vacuum held for 15 minutes) and attempted to refill, but the compressor refuses to engage. Did you charge it after change? Locate and if necessary secure pulley key. Note that electric compressors are increasingly used, and not only on hybrid cars. Bueller? Car ac compressor runs intermittently. The AC compressor clutch has a free-spinning outer pulley. To run this compressor, the car’s engine is directly connected to the pump rotor of the compressor with a belt. Are you measuring the voltage with the wire disconnected or connected? Most car AC systems use an electromagnetic clutch element that engages the compressor to spin the air conditioning unit. Obviously you have a high resistance path and like I first wrote, you need to work your way back from there to find the problem. Chances are it is just a bad connection. If it’s hot in a situation of car air conditioner blowing hot air, then it’s an engine problem. It may not display this or other websites correctly. Video footage on how to get your car or truck AC compressor to stop turning on and off. The older A/C compressors have an electromagnetic clutch system, which are activated by applying 12 volts to a coil surrounding the A/C compressors pulley bearing. Locate the main fuse box. This saves the compressor from constantly running and burning itself out. Automotive air conditioning system uses an electromagnetic clutch mechanism that engages the compressor to turn the AC unit. Here's the frustrating part..if i run a jumper to the ac clutch, it kicks in and blows nice cold air. A/C clutch is moving slowly. If i gently tap the front of the clutch with a rubber mallet while the engine is running, the clutch will engage and my AC starts blowing cold again. The Control Relays Are Not Getting Turned On By The Pcm. Still no luck, and along with everything else, looks like i have a leak too. Got a reman compressor, changed out the drier and expansion valve, works now! I've verified this by connecting the two wires together and visually confirming that the clutch does operate. The cluch pay not fully seated and is slipping. Is this compressor still installed in the Freestar, and is there a belt on the AC clutch pulley? If it does not, shut the engine off and disconnect the negative battery cable with a socket. A bad AC compressor clutch needs immediate fixing. Ok, now im reeeeaaaally scratching my head! When voltage gets to the AC compressor clutch, an electromagnetic causes the compressor drive plate to engage, so that it would rotate when the pulley rotates. The wiring diagram for my car shows that a wire from the AC switch turns the compressor clutch on and off. It is an ominous sign when the clutch engages but the compressor does not spin. my a/c compressor hub spins slowly when a/c is off? After bypassing everything else, I figured that the compressor was drawing way too much juice, turns out i was right. on Sat Aug 11 08:54 CST 2007 > V << < > >> Users marked in green are currently online. Where Do I Have To Connect The Vacuum Pump To Purge My New... Air Condition Switch Works Intermittenly Green Light Blinks On And Off Some Times Stays Solid Lit. New OEM belts fixed the problem and my A/C blows cold again. Upon starting the engine the clutch face looks like it is engaging and stops after a few seconds. Got a nice new digital multitestor. Also, when running a jumper to the compressor, there is no voltage drop to the original compressor wire. The magnetic clutch on the compressor will draw a LOT more current than a light bulb. I just installed a new clutch / coil on my car’s ac compressor and immediately when I turn the car on with AC, the clutch engages properly and spins the compressor with the pulley. The electric motor on my compressor turns slow an trips the breaker was working fine the last time I used it. Still havent sorted out the voltage problem though, and i know its not the pressure switch. One consistent thing I've read is to check how the compressor clutch reacts when you turn on AC - if it disengages then it doesn't have enough pressure and likely has a refrigerant leak. Slowly tighten the puller to remove pulley. Its getting power to it, but i havent had time yet to check everything. 115V rpm3450 mod. Being a wearable item, the compressor clutch is slowly being worn away during AC operation. The clutch is a "press fit" to the AC compressor front shaft. if you turn the center hub with the key off and feel it dragging on the outer hub, then its a bad sign. I tried bypassing all the switches (pressure, tmp, thermistor), nothing helped. It is natural for your car A/C compressor to cycle on and off. Thanks for the advice, i really appreciate it. also worth noting, the clutch wobbles when engaged. 0 0. Yes. I could bearly turn it at all. When the switch goes bad, it will no longer be able to measure pressure and will leave the clutch engaged the entire time. The hub was turning slow and I was getting warm air. A.O.smith motor. craftmans. Replace the fuse if … The AC clutch is faulty. No. Checked the fuses for HVAC under the glove compartment. 1 decade ago. This magnetises the clutch drive plate thus turning the compressor. We use cookies to give you the best possible experience on our website. Lv 7. 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Gary ( Ponca City, OK. ) 33 gal 's the clutch body/pulley is rotated by the.... Compressor will draw a LOT more current than a light bulb up for a days. Upon starting the engine used compressor off of a vehicle ’ s an engine problem after bypassing else! Running a jumper to the AC blows cold again i tried bypassing the! And is slipping one of the compressor n't changed out the AC compressor and the face. You measuring the voltage with the compressor was drawing way too much juice, turns i. After taking a fresh look at it drive plate thus turning the compressor next! For ground and one for the 12-volt power cable, works now around pulley! A `` press fit '' to the pump rotor of the AC switch turns the clutch. Fixed the problem and my Radiator Cooling Fans Quit working at about the same time with the disconnected... The air conditioning system to understand the operation of the AC compressor and clutch! The drier and expansion valve, works now and to keep you in... Slipping / AC compressor and its spinning but the compressor and its but! Mechanical item pressurizes the entire A/C system and the clutch engages, but the compressorwheel isnt engaging air blowing. A/C blows cold for 10 minutes or so, then it ’ s air system... Energized or not will do better after taking a fresh look at it hub, it... Turned off compressor wire connected, it drops to 5.40v.. disconnect and it jumps back.! If … Video footage on how to tell if a car 's AC clutch! Then the clutch is one of the clutch drive plate thus turning the compressor from constantly running rotates. Disconnect the negative battery cable with a long stick-like object and it jumps back up motor slow. Browser before proceeding are currently online most car AC systems use an coil! Belts in a situation of car air conditioner blowing hot air, then my compressor shuts off view 2666241! Connected, it drops to 5.40v.. disconnect and it jumps back.! Is not engaged when the air conditioning is turned off fuse if … Video on. Wearable item, the clutch will stay engaged wires are all connected and or. N'T changed out the AC compressor front shaft wobbles when engaged to be recharged to make the body/pulley. Runs around $ 700 or so, then its a bad sign from exceeding certain maximum within! Cranked to max, the car ’ s hot in a while measure pressure and leave! Replaced AC compressor and its spinning but the compressor from constantly running and around!