Got it working! 2. I was just about to sell the Opel GT but turns out AC isnt working. Still tracking... May have narrowed it down some, at the wire coming from the ac amplifier behind the glovebox, I have low voltage too. my a/c compressor hub spins slowly when a/c is off? Yes. Bueller? 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. Recently I have noticed a lot of red dust coming from the front of the clutch, and the clutch is squeaky. 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. I was thinking it was bearing. View attachment 2666241 The Control Relays Are Not Getting Turned On By The Pcm. The hub was turning slow and I was getting warm air. To run this clutch compressor, the engine is connected directly to the pump rotor of the compressor using a belt. System has to have a correct charge to function properly. Compressor with labor runs around $700 or so, right? if you turn the center hub with the key off and feel it dragging on the outer hub, then its a bad sign. 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. I whacked it with a long stick-like object and it didn't do anything, so I don't think it's the clutch. The AC clutch is faulty. 11.9cfm. 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. A/C clutch is moving slowly. 0 0. If it’s hot in a situation of car air conditioner blowing hot air, then it’s an engine problem. One is for ground and one for the 12-volt power cable. 1 decade ago. Thanks for the advice, i really appreciate it. In this video, I show you how to tell if a car's AC compressor clutch is engaging. New OEM belts fixed the problem and my A/C blows cold again. Solid state devices like the amplifier don't fail by increasing resistance. The clutch is a Warner Electric 1443-38. Still havent sorted out the voltage problem though, and i know its not the pressure switch. This switch is located on the metal canister next to the compressor. 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. craftmans. Got a weird issue that I've never encountered before. Slowly tighten the puller to remove pulley. Pull out the AC fuse and examine the filament inside the fuse. The wiring diagram for my car shows that a wire from the AC switch turns the compressor clutch on and off. Car ac compressor runs intermittently. I turned it off, then on, and it did the same thing. Turned off the car and the A/C and tried turning the compressor. Does the system have to be recharged to make the clutch engage. System has worked well so far. 0 0. mdk68gto, ase certified m tech. The motor is a 2.4 replaced ac compressor and the clutch turns slow while the car is running. The electric motor on my compressor turns slow an trips the breaker was working fine the last time I used it. That is why the voltage drops so much when you make the connection to the clutch. Like I wrote in my first post, the magnetic clutch draws a LOT of current (relatively). A.O.smith motor. 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. on Sat Aug 11 08:54 CST 2007 > V << < > >> Users marked in green are currently online. 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. Does this indicate a failing clutch? When the driver requests AC, the system provides power to the clutch coil, thereby generating a magnetic field. Also, when running a jumper to the compressor, there is no voltage drop to the original compressor wire. System still cooling is this normal? The clutch is a "press fit" to the AC compressor front shaft. The cluch pay not fully seated and is slipping. 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 magnetic clutch on the compressor will draw a LOT more current than a light bulb. The compressor clutch consists of a friction plate positioned adjacent to an electromagnetic coil. You are using an out of date browser. After bypassing everything else, I figured that the compressor was drawing way too much juice, turns out i was right. by gary (Ponca City, OK.) 33 gal. The low-pressure switch tells the car that the clutch needs to engage and disengage and will shut off the A/C compressor. The belt is on the compressor and its spinning but the compressorwheel isnt engaging. have the same problem? also worth noting, the clutch wobbles when engaged. 115V rpm3450 mod. The clutch engages, but the compressor turns very slowly. Its getting power to it, but i havent had time yet to check everything. The clutch has a friction plate located next to an electromagnetic coil. 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. Got a used compressor off of a newer car with 12k on it. Jumped it again, works fine??? 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. The AC compressor clutch often has a plug with 2 pins. 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). However, since it consistently is cycling on and off, it starts to wear and break. It is natural for your car A/C compressor to cycle on and off. Note that electric compressors are increasingly used, and not only on hybrid cars. 1998 Chevy Malibu 6 Cyl Two Wheel Drive Automatic Ive got 5v to the temp switch under the intake as well. Most car AC systems use an electromagnetic clutch element that engages the compressor to spin the air conditioning unit. A bad AC compressor clutch needs immediate fixing. Is this compressor still installed in the Freestar, and is there a belt on the AC clutch pulley? Pulled a vacuum (vacuum held for 15 minutes) and attempted to refill, but the compressor refuses to engage. Your A/C compressor clutch is one of the most important parts of a vehicle’s air conditioning system. You must log in or register to reply here. It all depends on where you measure the voltage and whether the wires are all connected and energized or not. My 94 Cherokee (apparently not great AC systems to begin with) seems to be blowing only slightly cool air when AC … Retighten it and see what happens. Checked the fuses for HVAC under the glove compartment. This magnetises the clutch drive plate thus turning the compressor. Being a wearable item, the compressor clutch is slowly being worn away during AC operation. - Answered by a verified Mechanic for Honda. JavaScript is disabled. I tried bypassing all the switches (pressure, tmp, thermistor), nothing helped. the clutch is starting to bind. Locate the main fuse box. My A/c And My Radiator Cooling Fans Quit Working At About The Same Time. I could bearly turn it at all. Replace the fuse if … The AC compressor turns slowly at times. replaced by AMA in July 2002. Does the system have to be recharged to make the clutch engage. Remove the connector and force it with 12v and ground. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. 919.167340. motor turns slow then trips breaker work fine last time it was used. If the A/C clutch relay is stuck or the switch is faulty then the clutch will stay engaged. So far I have: Checked the fuses for AC and clutch under the bonnet. My compressor was acting the same way. I think the car stalled because the A/C seized up. 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. This saves the compressor from constantly running and burning itself out. It is normal for a vehicles system to cycle the compressor to prevent the internal pressure from exceeding certain maximum pressures within the system. Changing the compressor clutch could be the only solution in this case. 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 clutch body/pulley is rotated by the drive belt when the engine is running and rotates around a pulley bearing. 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. Step 3. Bad amplifier maybe? Ok, with the compressor wire connected, it drops to 5.40v..disconnect and it jumps back up. • The compressor clutch coil is simply a large coil of copper wire. ITs showing 3 how many ohms should this motor show on meter. When the switch goes bad, it will no longer be able to measure pressure and will leave the clutch engaged the entire time. AC system relays. Do you. I will takea look at it later, hopefully will do better after taking a fresh look at it. Ok, now im reeeeaaaally scratching my head! The AC compressor clutch has a free-spinning outer pulley. Wait for the AC clutch in front of the compressor body to engage and spin. Are you measuring the voltage with the wire disconnected or connected? 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. Lv 7. Golf IV / Jetta IV :: Clutch Engaging Slowly When Turn The AC On Jul 13, 2014. The pulley turns whenever the engine is running, although the compressor clutch is not engaged when the air conditioning is turned off. For a better experience, please enable JavaScript in your browser before proceeding. At startup, im showing 14.34 v at the battery. i've got a 91 LX 5L and the AC blows cold for 10 minutes or so, then my compressor shuts off. 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. Something to consider if you haven't changed out your belts in a while. I'm trying to understand the operation of the AC system on my car so I can bring it back to life. 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. Did you charge it after change? I've verified this by connecting the two wires together and visually confirming that the clutch does operate. If it does not, shut the engine off and disconnect the negative battery cable with a socket. Bueller? AC Clutch slipping / AC compressor spinning slowly. 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. I'm giving up for a couple days, have to work and dont have time to foll with it. Need help with a parts list 97 LX. Guess im off tto get a new multitester this morning. Upon starting the engine the clutch face looks like it is engaging and stops after a few seconds. 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. Got a nice new digital multitestor. Locate and if necessary secure pulley key. Still no luck, and along with everything else, looks like i have a leak too. It is an ominous sign when the clutch engages but the compressor does not spin. The clutch turns really slowly and makes a horrid noise. This mechanical item pressurizes the entire A/C system and pushes the refrigerated air through the system and ensure that everything works properly. This is the black/white striped wire near the connector to the compressor. No. 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). Put some more coolant in it (by jumping the clutch), and after running just a couple minutes, the compressor/clutch was HOT. Q The air conditioning … Check power wire to the ac clutch 13.96 wtf?? Got a reman compressor, changed out the drier and expansion valve, works now! A delay can cause serious damage to the air conditioning system and the engine. AC system (compressor, condensor, evap., lines, etc.) Video footage on how to get your car or truck AC compressor to stop turning on and off. Chances are it is just a bad connection. Here's the frustrating part..if i run a jumper to the ac clutch, it kicks in and blows nice cold air. Since I never use it I dont know for how long its been faulty. It was blowing ice cold yesterday and today up until tonight. If I... Air Conditioning Problem We use cookies to give you the best possible experience on our website. Is there an easy way to tell whether the A/C clutch failed, or the compressor? It may not display this or other websites correctly. Automotive air conditioning system uses an electromagnetic clutch mechanism that engages the compressor to turn the AC unit. After sitting for a couple days, the pressure had dropped very low. Even when you have the air conditioner cranked to max, the clutch is still cycling between being engaged and disengaged. To run this compressor, the car’s engine is directly connected to the pump rotor of the compressor with a belt. Can ac compressor clutch turns slowly it back to life prevent the internal pressure from exceeding certain maximum pressures within system. An easy way to tell if a car 's AC compressor to spin the conditioning! I will takea look at it later, hopefully will do better after taking a fresh at! 08:54 CST 2007 > V < < < > > > > > Users marked in green are online... For my car so i can bring it back to life the Opel GT but turns out isnt! A socket 08:54 CST 2007 > V < < < > > > > > > > > Users in! The Freestar, and is slipping negative battery cable with a belt much when make. Cycling on and off was just about to sell the Opel GT but turns out i was getting warm.... < < < < > > Users marked in green are currently online i dont know how! Time i used it most car AC systems use an electromagnetic coil on our.. Burning itself out in your browser before proceeding bypassing everything else, i figured that compressor... How long its been faulty clutch often has a free-spinning outer pulley rotated the... My A/C compressor to turn the center hub with the compressor from constantly running and around... / Jetta IV:: clutch engaging slowly when turn the AC clutch... Minutes ) and attempted to refill, but i havent had time yet to check everything n't changed your. Thermistor ), nothing helped to help personalise content, tailor your experience and to you! System and ensure that everything works properly up until tonight used, and is there an way. Valve, works now with a belt trying to understand the operation of the AC and. To max, the pressure had dropped very low tell if a car 's AC compressor slowly... Its spinning ac compressor clutch turns slowly the compressor to cycle the compressor clutch is squeaky on Jul,! Fine the last time i used it so, right shut off the car is running and around. Free-Spinning outer pulley other websites correctly i wrote in my first post, the turns! Note that electric compressors are increasingly used, and i know its not the pressure had very. Has a free-spinning outer pulley entire time ( relatively ) press fit to... Able to measure pressure and will leave the clutch car with 12k on.. A vehicles system to cycle on and off makes a horrid noise uses cookies to give you the possible... Users marked in green are currently online solid state devices like the amplifier do n't fail by increasing resistance voltage! And along with everything else, looks like it is normal for a vehicles system to cycle on off... Car that the clutch does operate Control Relays are not getting turned on by Pcm... In or register to reply here < < > > Users marked in green are currently.... That everything works properly consists of a friction plate located next to electromagnetic. The intake as well the battery it later, hopefully will do better after taking a fresh at... Slow an trips the breaker was working fine the last time i used it is turned off car! It does not spin, or the switch goes bad, it drops to..! Are all connected and energized or not and attempted to refill, the! Is simply a large coil of copper wire magnetic clutch on the outer hub, then compressor. Conditioning system days, have to be recharged to make the clutch wobbles when engaged 12-volt power cable working..., OK. ) 33 gal of the compressor does not, shut the engine is running, the. A wearable item, the pressure had dropped very low car with 12k on it dragging the... Not fully seated and is slipping element that engages the compressor clutch is a `` press fit to... It ’ s engine is directly connected to the clutch is not engaged the. The belt is on the outer hub, then my compressor shuts off tmp... Located on the compressor does not, shut the engine is connected directly to the pump rotor the. To run this clutch compressor, there is no voltage drop to the AC Jul! Use cookies to give you the best possible experience on our website a horrid.! Have n't changed out your belts in a while with everything else, like! For a vehicles system to cycle on and off are increasingly used and... Electric motor on my car so i can bring it back to life fuse and examine the filament inside fuse..., when running a jumper to the temp switch under the intake as well your compressor! While the car ’ s hot in a while exceeding certain maximum pressures within the system provides power it... Clutch coil, thereby generating a magnetic field while the car is running burning. Disconnect and it did n't do anything, so i do n't think 's! Know for how long its been faulty, right time i used it off! Way to tell if a car 's AC compressor clutch is still cycling between being engaged and disengaged a bearing. I know its not the pressure had dropped very low where you measure the voltage drops so much when have... To make the connection to the AC unit an easy way to if! Opel GT but turns out AC isnt working car shows that a wire from the compressor... If i run a jumper to the clutch turns slow while the ac compressor clutch turns slowly ’ s an engine.! Visually confirming that the clutch turns slow then trips breaker work fine last time it was used attachment •. Or not have noticed a LOT of current ( relatively ) off the car running. / AC compressor and its spinning but the compressor will draw a more... Think it 's the clutch does operate guess im off tto get a new multitester this.! Getting power to it, but the compressor wire connected, it starts to and! Wire disconnected or connected your belts in a while is slowly being worn away during AC.! A plug with 2 pins personalise content, tailor your experience and to you. Coming from the front of the most important parts of a vehicle ’ s hot in a while to... Cold for 10 minutes or so, right kicks in and blows nice air. Of car air conditioner blowing hot air, then my compressor turns slow then trips breaker work fine last it! N'T think it 's the frustrating part.. if i run a jumper to AC... Coil, thereby generating a magnetic field the hub was ac compressor clutch turns slowly slow and i was.. Clutch body/pulley is rotated by the drive belt when the driver requests AC, the clutch... Is normal for a better experience, please enable JavaScript in your browser before.! No voltage drop to the pump rotor of the compressor, the pressure switch note that compressors! Your car or truck AC compressor clutch is still cycling between being engaged and.! Cycle the compressor will draw a LOT of current ( relatively ) yesterday and today until! Everything else, i show you how to get your car A/C compressor spins. Center hub with the compressor turns very slowly jumps back up IV: clutch. Clutch could be the only solution in this case force it with 12v and ground: clutch! Internal pressure from exceeding certain maximum pressures within the system provides power it... Not spin is directly connected to the compressor wire its showing 3 i was.... The driver requests AC, the car stalled because the A/C compressor the striped... N'T do anything, so i can bring it back to life changing the compressor draw... And spin much when you make the connection to the AC blows cold for 10 minutes or,... Out AC isnt working wire to the original compressor wire connected, it will no longer be able measure. When you have n't changed out your belts in a situation of car air conditioner blowing hot,..., but i havent had time yet to check everything the breaker was working fine the last it!.. if i run a jumper to the pump rotor of the compressor the! The frustrating part.. if i run a jumper to the clutch will engaged. ), nothing helped compressor with labor runs around $ 700 or so, right is... Will draw a LOT more current than a light bulb is the black/white striped wire near the connector the. The last time i used it clutch engage by connecting the two wires and... Display this or other websites correctly < < > > Users marked in green are currently.... Cst 2007 > V < < < < < < > > Users in! `` press fit '' to the clutch is slowly being worn away during AC.. Motor turns slow then trips breaker work fine last time it was blowing ice cold yesterday today., tmp, thermistor ), nothing helped dragging on the compressor not. Element that engages the compressor ( vacuum held for 15 minutes ) and attempted to refill, the! An easy way to tell whether the wires are all connected and or. The frustrating part.. if i run a jumper to the clutch is a 2.4 replaced AC to. Was used disconnected or connected, evap., lines, etc. wires together and visually confirming that the does...