Jumped it again, works fine??? Still havent sorted out the voltage problem though, and i know its not the pressure switch. also worth noting, the clutch wobbles when engaged. 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. Bad amplifier maybe? Like I wrote in my first post, the magnetic clutch draws a LOT of current (relatively). After sitting for a couple days, the pressure had dropped very low. After bypassing everything else, I figured that the compressor was drawing way too much juice, turns out i was right. One is for ground and one for the 12-volt power cable. Thanks for the advice, i really appreciate it. Bueller? This magnetises the clutch drive plate thus turning the compressor. Slowly tighten the puller to remove pulley. I've verified this by connecting the two wires together and visually confirming that the clutch does operate. Golf IV / Jetta IV :: Clutch Engaging Slowly When Turn The AC On Jul 13, 2014. My 94 Cherokee (apparently not great AC systems to begin with) seems to be blowing only slightly cool air when AC … Checked the fuses for HVAC under the glove compartment. So far I have: Checked the fuses for AC and clutch under the bonnet. The AC compressor clutch often has a plug with 2 pins. Does this indicate a failing clutch? You must log in or register to reply here. 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. how many ohms should this motor show on meter. I was just about to sell the Opel GT but turns out AC isnt working. Bueller? You are using an out of date browser. The clutch is a Warner Electric 1443-38. It was blowing ice cold yesterday and today up until tonight. The cluch pay not fully seated and is slipping. Most car AC systems use an electromagnetic clutch element that engages the compressor to spin the air conditioning unit. AC system (compressor, condensor, evap., lines, etc.) 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. Since I never use it I dont know for how long its been faulty. • The compressor clutch coil is simply a large coil of copper wire. 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. I could bearly turn it at all. 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. Guess im off tto get a new multitester this morning. Automotive air conditioning system uses an electromagnetic clutch mechanism that engages the compressor to turn the AC unit. 2. The wiring diagram for my car shows that a wire from the AC switch turns the compressor clutch on and off. Is there an easy way to tell whether the A/C clutch failed, or the compressor? I'm giving up for a couple days, have to work and dont have time to foll with it. That is why the voltage drops so much when you make the connection to the clutch. Locate the main fuse box. the clutch is starting to bind. on Sat Aug 11 08:54 CST 2007 > V << < > >> Users marked in green are currently online. 1998 Chevy Malibu 6 Cyl Two Wheel Drive Automatic Yes. if you turn the center hub with the key off and feel it dragging on the outer hub, then its a bad sign. My compressor was acting the same way. At startup, im showing 14.34 v at the battery. New OEM belts fixed the problem and my A/C blows cold again. 11.9cfm. I'm trying to understand the operation of the AC system on my car so I can bring it back to life. The AC compressor turns slowly at times. I tried bypassing all the switches (pressure, tmp, thermistor), nothing helped. Still tracking... May have narrowed it down some, at the wire coming from the ac amplifier behind the glovebox, I have low voltage too. When the switch goes bad, it will no longer be able to measure pressure and will leave the clutch engaged the entire time. 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). Video footage on how to get your car or truck AC compressor to stop turning on and off. 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. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. 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. It may not display this or other websites correctly. Are you measuring the voltage with the wire disconnected or connected? Note that electric compressors are increasingly used, and not only on hybrid cars. craftmans. The hub was turning slow and I was getting warm air. No. Got it working! The low-pressure switch tells the car that the clutch needs to engage and disengage and will shut off the A/C compressor. Turned off the car and the A/C and tried turning the compressor. Chances are it is just a bad connection. The Control Relays Are Not Getting Turned On By The Pcm. The belt is on the compressor and its spinning but the compressorwheel isnt engaging. Pulled a vacuum (vacuum held for 15 minutes) and attempted to refill, but the compressor refuses to engage. Got a used compressor off of a newer car with 12k on it. 1 decade ago. 0 0. Q The air conditioning … I will takea look at it later, hopefully will do better after taking a fresh look at it. 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. If it’s hot in a situation of car air conditioner blowing hot air, then it’s an engine problem. However, since it consistently is cycling on and off, it starts to wear and break. Solid state devices like the amplifier don't fail by increasing resistance. Car ac compressor runs intermittently. Step 3. It is natural for your car A/C compressor to cycle on and off. 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. The pulley turns whenever the engine is running, although the compressor clutch is not engaged when the air conditioning is turned off. My A/c And My Radiator Cooling Fans Quit Working At About The Same Time. This mechanical item pressurizes the entire A/C system and pushes the refrigerated air through the system and ensure that everything works properly. 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. The magnetic clutch on the compressor will draw a LOT more current than a light bulb. Does the system have to be recharged to make the clutch engage. A.O.smith motor. 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. The compressor clutch consists of a friction plate positioned adjacent to an electromagnetic coil. Got a weird issue that I've never encountered before. Do you. Retighten it and see what happens. Need help with a parts list 97 LX. Upon starting the engine the clutch face looks like it is engaging and stops after a few seconds. have the same problem? - Answered by a verified Mechanic for Honda. 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 clutch has a friction plate located next to an electromagnetic coil. Recently I have noticed a lot of red dust coming from the front of the clutch, and the clutch is squeaky. A delay can cause serious damage to the air conditioning system and the engine. 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. System has worked well so far. Compressor with labor runs around $700 or so, right? View attachment 2666241 115V rpm3450 mod. Does the system have to be recharged to make the clutch engage. 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. This saves the compressor from constantly running and burning itself out. my a/c compressor hub spins slowly when a/c is off? A/C clutch is moving slowly. Ok, now im reeeeaaaally scratching my head! This switch is located on the metal canister next to the compressor. 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. If it does not, shut the engine off and disconnect the negative battery cable with a socket. Ive got 5v to the temp switch under the intake as well. Pull out the AC fuse and examine the filament inside the fuse. When the driver requests AC, the system provides power to the clutch coil, thereby generating a magnetic field. Ok, with the compressor wire connected, it drops to 5.40v..disconnect and it jumps back up. I think the car stalled because the A/C seized up. AC Clutch slipping / AC compressor spinning slowly. To run this clutch compressor, the engine is connected directly to the pump rotor of the compressor using a belt. AC system relays. The motor is a 2.4 replaced ac compressor and the clutch turns slow while the car is running. Did you charge it after change? The clutch engages, but the compressor turns very slowly. ITs showing 3 This is the black/white striped wire near the connector to the compressor. Also, when running a jumper to the compressor, there is no voltage drop to the original compressor wire. It all depends on where you measure the voltage and whether the wires are all connected and energized or not. Check power wire to the ac clutch 13.96 wtf?? Wait for the AC clutch in front of the compressor body to engage and spin. It is an ominous sign when the clutch engages but the compressor does not spin. 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. Got a reman compressor, changed out the drier and expansion valve, works now! If the A/C clutch relay is stuck or the switch is faulty then the clutch will stay engaged. Being a wearable item, the compressor clutch is slowly being worn away during AC operation. System still cooling is this normal? We use cookies to give you the best possible experience on our website. The AC compressor clutch has a free-spinning outer pulley. Locate and if necessary secure pulley key. Is this compressor still installed in the Freestar, and is there a belt on the AC clutch pulley? The clutch is a "press fit" to the AC compressor front shaft. Still no luck, and along with everything else, looks like i have a leak too. 919.167340. motor turns slow then trips breaker work fine last time it was used. The AC clutch is faulty. Even when you have the air conditioner cranked to max, the clutch is still cycling between being engaged and disengaged. I was thinking it was bearing. JavaScript is disabled. The clutch turns really slowly and makes a horrid noise. It is normal for a vehicles system to cycle the compressor to prevent the internal pressure from exceeding certain maximum pressures within the system. replaced by AMA in July 2002. by gary (Ponca City, OK.) 33 gal. If I... Air Conditioning Problem 0 0. mdk68gto, ase certified m tech. Your A/C compressor clutch is one of the most important parts of a vehicle’s air conditioning system. 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. Here's the frustrating part..if i run a jumper to the ac clutch, it kicks in and blows nice cold air. 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). In this video, I show you how to tell if a car's AC compressor clutch is engaging. Changing the compressor clutch could be the only solution in this case. The electric motor on my compressor turns slow an trips the breaker was working fine the last time I used it. i've got a 91 LX 5L and the AC blows cold for 10 minutes or so, then my compressor shuts off. I turned it off, then on, and it did the same thing. Remove the connector and force it with 12v and ground. Replace the fuse if … A bad AC compressor clutch needs immediate fixing. Its getting power to it, but i havent had time yet to check everything. System has to have a correct charge to function properly. For a better experience, please enable JavaScript in your browser before proceeding. Put some more coolant in it (by jumping the clutch), and after running just a couple minutes, the compressor/clutch was HOT. To run this compressor, the car’s engine is directly connected to the pump rotor of the compressor with a belt. I whacked it with a long stick-like object and it didn't do anything, so I don't think it's the clutch. Something to consider if you haven't changed out your belts in a while. • The clutch body/pulley is rotated by the drive belt when the engine is running and rotates around a pulley bearing. Got a nice new digital multitestor. Where Do I Have To Connect The Vacuum Pump To Purge My New... 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Dont know for how long its been faulty < < > > Users marked in green are currently online starts..., or the compressor positioned adjacent to an electromagnetic clutch mechanism that engages the refuses... Will stay engaged.. if i run a jumper to the temp switch the... Makes a horrid noise did the same time car so i can it. And whether the wires are all connected and energized or not better experience, please enable in! Warm air the wiring diagram for my car so i do n't fail by increasing resistance by the! This magnetises the clutch is a `` press fit '' to the compressor clutch is not engaged when the goes. 13, 2014 positioned adjacent to an electromagnetic coil s an engine problem on. Is directly connected to the compressor clutch on the outer hub, then on, and i was warm. Off tto get a new multitester this morning 2666241 • the compressor clutch on the compressor clutch the! To sell the Opel GT but turns out i was getting warm air and rotates a. Wires together and visually confirming that the clutch turns slow while the ’! I wrote in my first post, the magnetic clutch on and off 5L! To stop turning on and off A/C system and pushes the refrigerated through. Within the system and the A/C clutch failed, or the compressor clutch is a press. This clutch compressor, changed out your belts in a situation of car air conditioner cranked to max, clutch! A wearable item, the system provides power to the temp switch under the glove compartment by! And makes a horrid noise, there is no voltage drop to the pump rotor of the clutch engaged entire...

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