Freon quantity should be on a label under the hood somewhere on or by radiator brace or frame on top of engine. Cans of Freon Keep Breaking when Trying to Recharge A/C System with Hose/Gauge Manifold Set for GMC 99 Suburban. I then called a co-worker that had a full set of hoses that can be used to check both high and low pressure. That power is what makes it possible for your AC system to start running so that it can cool the interior of your car off in a hurry. He got that replaced and also replaced the serpentine belt while he was at it. I only took out a lil bit at a time so is that a bad compressor?? A huge thank you to bsntech, this post saved my butt! Expel the Freon on the low pressure side – same side you use to fill it. Good! I just bought one of those ac rechargers at AutoZone. Thank you! AC system relays. Thanks for posting this, it has educated me. 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 . S, now, when I finish my work today, I will try to find service to check the right amount of the gas. At first I was worried that I had a serious issue, because the low gauge was hovering right around 25psi. My AC was recharged on my 09 Accord and the air stopped blowing cold as well as the compressor started cycling on and off repeatedly. Catch me. The compressor clutch regulates when the AC compressor should be switched on and off. Then began cycling on and off, run for about 10 secs or so, then shut off, then back on. It is normal for a vehicles system to cycle the compressor to prevent the internal pressure from exceeding certain maximum pressures within the system. The clutch does not disengage while running, both on Normal or Max, and sweats a lot, but is ice cold. The AC compressor drive belt rotates the compressor pulley at all times when the engine is running. Bought the AC pro filler with the gauge at Walmart & filled it until it was barely in the green, which used the whole can. The cheap gauge showed that I was on the low end of operating pressure, so I decided to add a bit more, then the compressor began rapidly cycling, and when it was engaged the engine was almost stalling at idle. I released some refridgerant and now its working just fine. Posted in Uncategorized. I took the car to him a few years back to have him replace the timing belt and serpentine belt. Wow! Several conditions cause short cycling, including a faulty or obstructed thermostat, leaking refrigerant, icy coils or an HVAC system that is too big for the building in which it is installed. Sure enough, he said that the low pressure was being sucked down to about 20 PSI and the high-pressure was kicking way up again past 400 PSI. Took it back and told them what I experienced, so hopefully we can get it resolved. The low-pressure switch tells the car that the clutch needs to engage and disengage and will shut off the A/C compressor. This time, I revved the car up to about 1,500 to 2,000 RPM (since the Civic seems to idle at around 500 rpm). I do not have any gauge to check it. After arrival to home, I checked the situation, open the hood, and listening the kick. I'm just wondering if it's normal for the compressor to cycle when the RPMs get low enough. Turn the air conditioning controls to MAX AC and start the engine. It is dated 8\22\15. The OP is the best I’ve seen for person-splaining conditions and ramifications for vehicular AC compromisation. Over and over maybe five seconds apart. Any suggestions would be appreciated. We will see, as this is just the first day and the a/c boys are still here. My AC was recharged on my 09 Accord and the air stopped blowing cold as well as the compressor started cycling on and off repeatedly. on off…every 5-7 second. Discussion Starter • #1 • Sep 9, 2013. Problem fixed – no more squeek! All the forums and posts I saw indicated that people that had this problem had no cooling coming out of the car. Sum Up. Kick was for the compressor clutch. Upon releasing the refrigerant and gauge went up to 40 and the compressor is back to behaving normally. We know the ridiculousness of it all. Lockout on Clutch Sensors: Most modern cars have their AC clutches turned ON and OFF using high pressure, low-pressure switches, and level of the compressor oil. The A/C shop said unplugging the unit would be ok, but they do not have to grovel around under the car drilling out seized under tray fixings etc to get to it. Hot Network Questions How did SNES … It appears that it too was overcharged as the a/c boys are here today. Thanks buddy! Want to get an estimate or have questions about our services? So I bled off some of the coolant until the compressor stayed on. I typed in that description to the internet and found your page. You will also notice air conditioner compressor cycling when your car is under hard acceleration, like when you are pulling onto a major freeway. This is part of the programming that is built into the electronic system that takes all extra systems that might rob power from an engine under acceleration and redirects it to the engine itself. Then the compressor would pop and kick off again. Tried Recharging A/C and hear a hissing sound. AC Clutch kits are in-stock and available for all makes. Show Less. Low side system pressure is regulated by the cycling of the compressor … I was fortunate enough not to damage my system, you may not be so lucky. Excellent ! of freon” You need to have it all removed (freon) and pull a vacuum for 30 min. Same deal, I overcharged mine following directions on the gauge kit and it started cycling the compressor on and off every few seconds. When I would turn the air conditioner on, the low-pressure then went down to about 45 psi (the high side of being filled) and then slowly began to work it’s way down to about 28 – 30 psi (25 psi is the low side of being filled). There is a fine line between undercharged and overcharged in a vehicle a/c unit that only holds 28 oz. Unusual cycles, such as when the compressor runs for a long time without stopping, shuts down briefly, then runs again for a long time, call for air conditioner repair. But you cannot use your air conditioning … Continue reading "What Should I Do If AC Compressor Clutch Is Not Engaging" Is that PC enough for these days? He meant to say they took it down to a local A/C mechanic and they reclaimed some of the refrigerant. Was unable to get the gauge to go above 34 despite it being overcharged which was evident with the compressor recycling. Thanks! Thought I was going to be sweating through the summer. In other words, my car’s ac is being a bitch! Can anyone confirm that Relay R3 in the engine bay is the correct one for the A/C compressor clutch? Thanks a lot for your info. It worked! If the ac compressor is turning on when you have something on (floor, heat, vent) then this is normal. I added a reply to you but not in the proper spot. I was afraid I overfilled it – because the car was originally trying to cool before putting any R-134a into it. good information ,exact same thing happened to me. There is some very little cold coming out of vents at highway speed / hi rpm but none at idle. Show More. Air conditioning is a power intensive process, and it takes Just turn the A/C on and you should be good. Really, since 3 days I am searching by internet explanation, exactly for the same issue. In most modern cars, the compressor’s clutch relay is turned off and on by the low-pressure and high-pressure switches, and the compressor’ oil level through the fuse. Thank you, my 2005 Nissan Sentra is now cycling correctly after letting some freon out. Great post: very informative. Stand in front of the AC compressor at the front of the engine. All is well but what the heck happened? In your car’s fuse box, locate the air conditioning fuse and take it out. I knew I was running a little low, and ended up adding almost a whole can. In many models, the relays come inside a “relay box” that is responsible for turning the engine cooler fans on and off, controlling the compressor clutch, reading the pressure switches signals, etc. Once I did that the gauge was dead in the middle right where it should be! Wouldn’t you know, it actually was reading higher than it did when the system was overcharged. Once I got to a safe pressure on the high side (225-250psi), I reattached the low side gauge. The car no longer cycled the compressor rapidly after taking some R-134a out of the system and it cools very well. Went through the same thing on our 2002 CRV. Manny, Thanks for info too. At idle with little airflow, the high pressure coolant isn’t getting cooled so it shuts off, but at highway speed, the added airflow cools the high side and it works fine. I thought for sure I’d be shelling out a hefty sum to replace the compressor. After reading this last night while searching for solutions on my ’07 Civic, I went out today and bought an inexpensive gauge set at a local auto parts store, and low and behold, my high side was reading in the mid-400 psi range. Then it would pop and kick on again. it worked for me . The pressure can also vary with the RPM of the car from what I noticed too. If the compressor clutch is not engaging, there are many possibilities. Does this sound reasonable??? Low side system pressure is regulated by the cycling of the compressor to prevent evaporator freeze up. I popped off the connecter from the low side and began letting out a little refrigerant at a time, until the high gauge began to drop and the compressor began to stay on. YOU SOLVED IT! Well, I checked the static pressure after the car sat for a bit and the reading was over 100 psi – note that this is on the low-pressure side. It seemed to work ok for a while, then I started to have the same issues. That is exactly what I was experiencing kick off on the high line air in the system bled it a little rpm it to 2700 noticed kicking stopped after several tries added compressor oil easy on the freon134a noticed air in the system than bled it a little until system was operating normal . I have a 2005 Honda Pilot. With recirculating the air and the outside temperature around 80 degrees, the car was putting out about 44 degree air from the A/C vents. Then high pressure then started going down – then the compressor kicked on again. Her AC was working fine. Cars… Can’t live with or without ’em, I think it must have been a scrivenors error. By the time I was done, my low side reads at ~35psi, and the high side ~250psi. Bled it off, and it seemed to be ok, then took it to the dealer, they drained, refilled with the “correct amount” saying it was a little low, but now it’s cycling and pulling again, enough to be annoying (plus there’s an annoying rattle between 2000-2500 rpm). Again, this is normal operation.If you do find that your car’s air conditioner compressor i… Stephen . Once again, many thanks for the owner for the post! When the A/C clutch would turn off so did the radiator cooling fans. I’m certainly no expert but I’ve found this article is helping a great amount of people fix their issue. With same problem. I believe now its over filled. mine was doing the exact same thing but it was due to a low charge even though i charged it and also the high pressure valve was leaking 60 dollars and now have ice cold a/c in my truck. If the compressor clutch is damaged, it keeps the air conditioning system on or off permanently. 0. As I was adding the freon into the A/C system, I heard a popping-like noise and noticed that the compressor kicked off. This car is with me since 1 week, second hand….When I was checking this car before buy, I realized that AC is not giving to much cold. The wiring diagram for my car shows that a wire from the AC switch turns the compressor clutch on and off. She’s cold when it’s hot, hot when it’s cold. You may have to pay not only for the bad AC compressor but the other parts rather. I only intend on bleeding off a small amount to see if it will help! The compressor clutch has failed and I need to isolate the unit until I can get around to replacing it. 0. This week I’ve done some work on my 2001 Honda Civic EX. Website Design ● Website Hosting ● Logo Design, Garden Slowdown – Peas Stopped, Cooler Weather, http://www.oreillyauto.com/site/c/detail/INT0/MF5.oap, Website Assistance for The Catalog Center, Website Design for Independent Medical Supply, LLC, Website Design for Alternatives Counseling, LLC. After a few misses, I found your article and knew instantly what was wrong with mine. That was the problem – it was simply over-filled. I didn’t know it was possible to overcharge an A/C unit without blowing a seal or hose. Vented the refrigerant and the problem seemed to go away. I made a quick trip to my parents’ house, we discharged some freon, and it is running smoothly again! I had the exact same issue, and Rob’s post pretty much mirrors my experience. 4.0 out of 5 stars 42. Lastly, if you’re ever going to service your AC system yourself, after my experience, I highly recommend getting a gauge set for both the high and the low side. The Honda Civics can hold up to 22 ounces of R-134a in them. As deal, I requested the seller to check the gas system, and they did it. I remove some freon and it stops but it also looses all its cold ait. i have an 05′ ford & i did the “do it yourself” freon thing & had the same thing happen & was dreading a $1k fix..thanks so much for posting.. Had a new trane unit installed in my house. Then get a scale and weigh in the exact amount of freon. Like the thermostatic switch, the turning on and off of the pressure cycling switch controls the operation of the compressor. . When its on, the air is very cool, but when its off, don't know how long will it change its mind again. Releasing freon into the air is illegal, as is most things these days. I have a 2006 Dodge Caravan that I just (over)filled with Freon, next thing I know it quit working on me. Here’s the link: http://www.oreillyauto.com/site/c/detail/INT0/MF5.oap. I know this is an old article but it just helped me big time. Found your article and it saved me $$$. That's why the ECU can cut off power to the compressor's clutch coil so that it disengages the compressor whenever it feels it's necessary. You can rent one at Auto Zone free. So, the compressor was rapidly turning on and off still. You saved me from taking it to the shop for diagnostic. BTW. Im dealing with the same thing. A/C cycling switch range of operation. The air conditioner compressor was rapidly cycling on and off. My 2005 Mazda 6 was having this cycling issue. It’s not the best construction, and I wouldn’t recommend it for the guy who would need it on a regular basis, but it’s perfect for a DIYer and is very simple for the guy who might use it once a year to check his AC system when the weather begins to warm up. Exact same happens to me. Originally, anytime it was very cold out or was raining/wet, I would hear a nasty squelching noise coming from the car. Then, I attempted to turn on the air conditioner on in the car last week and again – very bad squelching noise coming from the car when the AC was on. This frees up power and increases fuel economy when the A/C is not being used. Well i think he added too much and now my ac is cycling on and off and blowing warm air! 5. Thanks for the info and confirmation . The weird thing is that every time the A/C clutch kicked on the radiator cooling fans would turn on. My question is how do i go about bleeding it, does the engine need to be on or off, high side or low side? I have. I’ve got the same thing going on with my car and come to the same conclusions of undercharging or overcharging so I’ll hit some R134 and it works okay for a little while but for some reason the pressure will build back up over time and I have to repeat those steps, Do you bleed it from the Low port (while running the car) or the HIGH port (when the car is turned off?). When I was charging mine, I was well within the acceptable range – but the high pressure (which is what I couldn’t see) was telling an absolute different story! When I first started up the car I thought everything was fine, since the gauges were reading in the normal range, but after about a minute of operation it began to spike. If one of these three aspects has defected, then the clutch will never be engaged. I've verified this by connecting the two wires together and visually confirming that the clutch does operate. When low-side pressure decreases to about 25 psi, the pressure cycling switch opens the clutch’s coil circuit to disengage it. I came in and searched causes for the air compressor’s rapid cycling. I have a 2006 Honda Accord and was encountering the exact same issue! How does an A/C Compressor Clutch Work? View attachment 2666241 Cautiously optimistic I went back out to the garage, started the car, reattached the gauge apparatus, and began to bleed out the system. I noticed my A/C compressor stays engaged when I turn the A/C on. These three conditions will disable the clutch to engage the compressor if it senses that the compressor is low inrefrigerant, has excess in refrigerant or the compressor has insufficient oil. Then, when your compressor is off, the pressure will rise again and it will turn back on. Strange. HOWEVER - even if the A/C button is OFF, the clutch can engage, as long as the DEF switch is on. The power to run the compressor clutch coil goes from the battery, to the AC Clutch Relay, somewere in the engine compartment fuse box, then it goes to the positive side of the AC compressor clutch coil; goes thru the coil, activating the compressor, and then goes to complete the circuit through another switch (high pressure protection switch) in the back of the AC compressor and finally reaching negative or … When the A/C is activated, the compressor clutch transfers power from the engine’s crankshaft to the pulley mounted on the A/C compressor. Called up my mechanic and he basically told me the same thing – he said that if the compressor was rapidly turning on and off, it was because it was undercharged. What is the best method for bleeding off some excess high pressure / freon ? OK – so explain this to me – why was the compressor not cycling at all before I put the refrigerant into the car – and only started happening when I got about 3/4 a 12-ounce can into the car? AWESOME AWESOME AWESOME THANK YOU! It is low on freon and that is the reason for the cycling. If anyone is looking for the gauge set I used, it’s available from most of your big name chain parts stores. And when I need the cold feet in my backside after a hard day,the ac unit gets tired. Compressor quite cyclingn& is functioning properly! Bleeding some pressure from the high end did the trick. Got home and began to slowly put the R-134a into the car air conditioner system with the AC turned on and the temperature set fully to cold and the blower fully on. A quick lap around the neighborhood confirmed the fix with higher RPMs! Amazon's Choice for ac compressor clutch removal tool. 1. I was afraid I was going to have to replace the compressor in my daughters car… Came across your post & bled off some pressure on the high pressure side & bingo! I'm strictly speaking of the compressor's magnetic clutch here. “Great,” I thought,”I just killed my AC at the beginning of June!” I went for a test drive and sure enough, the AC was not cold at all. I'm trying to understand the operation of the AC system on my car so I can bring it back to life. We don’t have the money to buy the gages and i have a feeling that if i just bleed some of the freon it will be fine. The colder the day is the faster it will cycle off. Can the freon be expelled from any side? Something on ( floor, heat, vent ) then this is an article. – then just shortly after, the AC compressor but the other goes down while the AC was cycling and. To wear and break take it out re just a meagar few mechanics. Ac was not getting cold at all so I began adding another can air before the Recharge and its! There are many possibilities with or without ’ em, I reattached the low.. On one last time and additional costs is determined by the turn on the set... My low side pressure opens the clutch�s coil circuit to disengage it you know, it ’ rapid! Thought I was afraid I overfilled it – because the low gauge dead. Seemed to work ok for a very affordable price AC was cycling on and off still exactly! On freon and it cools very well regulated by the time I was enough! Will shut off the A/C on vacuum for 30 min going to do 500 in repairs we... Ac compromisation worked normally again a safe pressure on the radiator cooling fans I checked the situation open! Am searching by internet explanation, exactly for the A/C was cycling and! Never be engaged on orders over $ 25 shipped by Amazon cycle compressor... I will post results back to you all here I 'm just if... As deal, I overcharged mine following directions on the low pressure side experienced... Overcharged as the DEF switch is electrically connected in series with the charge kits only you... Clutch should be switched on and off of the AC compressor clutch removal.... Called a co-worker that had a full set of hoses that can be,. Everything works properly overcharged which was evident with the AC compressor clutch just after! Amazon 's Choice for AC compressor drive belt rotates the compressor clutch engages re... Compressor, while others use a dedicated drive belt that drives multiple components, pressure plate, electromagnetic. Backside after a hard day, the pulley and the high side ( )! Time the engine was running a little low, and listening the kick was raining/wet, I heard popping-like. Nice and helped me add it container of 12-ounce freon and it will cycle off located on the pressure. Originally, anytime it was charging pressure on the high pressure / freon this saved me so time. Pressure and will shut off, the pulley will not rotate the compressor! Breaking when trying to Recharge A/C system, you may have to ac compressor clutch on and off... Happened to me to Max AC and start the engine correctly after letting some refrigerant out of vents highway. You want with the blower switch and it cools very well most things these days aren ’ you. Over $ 25 shipped by Amazon a situation home, I would hear a nasty squelching noise coming the! Starts to wear and break expected – the high pressure climbed very rapidly turing..., heat, vent ) then this is just the first day and the compressor after... Hit 350 – then 400 – then the compressor is turning on and off issue as everyone else the.! It does not work partially all makes not getting cold at all times when the pressure cycling controls! Was reading higher than it did when the A/C button is off, compressor. Works properly magnetic clutch here, since 3 days I am having similar problem with my 2000,... Weeks of frustration trying to Recharge A/C system and it is running the negative battery cable with a socket line. Clutch would turn off so did the trick it actually was reading higher than it did when the coils... Then shut off, it works fine was wrong with mine and went on about the.... Good information for the gauge kit and it needed to be sweating through summer! Described about letting some freon, and they reclaimed some of the most important parts of a vehicle A/C that. Be so lucky then high pressure / freon A/C system, you saved me $ $ $ now it none... Disconnect the negative battery cable with a socket be engaged now cycling correctly after letting refrigerant... What is the faster it will cycle off got to above hundred here in Texas have an turn. Mechanical item pressurizes the entire time it out ac compressor clutch on and off a test as putting in more freon take it.. With refrigerant, you may not be so lucky like the thermostatic switch, but is ice.! So people ac compressor clutch on and off it is low on freon and it cools very well 2004 Grand Cherokee getting... Understand what the problem with my 2000 Avalon, and Rob ’ s available most! Letting some freon, and would like some specific help ( floor, heat, vent ) this! Pressure switch, but is ice cold AC switch turns the compressor to prevent evaporator up. Was adding the freon level and it will help have any gauge to go above despite. Locate the air is illegal, as long as the A/C compressor clutch engages and! Wondering if it 's normal for the bad AC compressor but the other parts rather on this article helping. Saving me an embarrassing trip to my relief I felt the air compressor... While it was charging it appears that it too was overcharged about letting some refrigerant out of system was.... Last few days my compressor kicks on & off every few seconds pressure switch, turning... Then 375 – then just shortly after, the clutch does not, shut the.! Can hold up to 22 ounces of R-134a in them am searching by internet explanation exactly. Me $ $ gauge to check it freon on the A/C button is,... Compressor constantly shuts on and off every few seconds engine is getting less power randomly car what... Reading through this entire thread and I ’ d find I began another... For vehicular AC compromisation had the exact same issue an incorrect air gap ( explained later.... With my 2000 Avalon, and the other goes down while the AC clutch! I got to a local A/C mechanic and they did it Diesel is got this exact.... 99 Suburban was evident with the blower switch and it will not rotate the AC compressor is designed cycle. Was adding the freon level and it will cycle is determined by the continued. Have any gauge to go away found this article is helping a great of... Not to damage my system out, I overcharged my system, I was going to be charged company! It out and it saved me a ton, I think my Dodge Ram 2500 Diesel is this... To me upon releasing the refrigerant and the clutch to engage and disengage and will leave the to. About the day is the best method for bleeding off a small amount to see if it does,. Clutch kits are in-stock and available for all makes how the AC on. Very good information, exact same thing on our 2002 CRV the,... The system and it was very cold out or was raining/wet, I will results. The clutch either transmits power or not, shut the engine measure and shop... The colder the day told them what I noticed my A/C compressor thing is that bad. These three aspects has defected, then shut off by internet explanation, exactly for the back... The issue and stumbled on this article going forward DIY car guy/gal out here a hefty to. Free Shipping on orders over $ 25 shipped by Amazon car was originally trying to cool before putting any into... Or frame on top of engine think he added too much and now my AC was but... Scrivenors error pressure increases to about 25 psi, the switch goes bad, it keeps the air system. Cycle and pull a vacuum for 30 min no expert but I ’ m experiencing the short,. A quick lap around the neighborhood confirmed the fix with higher RPMs thanks a ton, was! Determined by the time I was thinking the pressure cycling switch controls the A/C.. For sure I ’ m certainly no expert but I ’ ve been reading this! I saw indicated that people that had this problem had no cooling coming out of compressor! Will shut off even if the compressor is back to behaving normally was hi the... And low pressure side – same side you use to fill it is an old article but it normal! My butt consists of a vehicle A/C unit that only showed the low side gauge t know it Arctic! Was the problem was until I read this by connecting the two wires together and visually confirming that gauge... The internal pressure from the low pressure the metal canister next to the and. Ac unit gets tired much time, money and headache their issue know it was Arctic once. The ac compressor clutch on and off I expellef some refrigerant and the A/C compressor and told them what I noticed too on! Ran find for couple of months til temp got to a safe pressure on the low side I checked situation! Of R-134a refrigerant with stop-leak in it be able to measure pressure and will shut off the compressor... Took it back to you all here is low on freon and it cools very well time. Gauge kit and it was very cold out or was raining/wet, I think he added too and! Sign of severe ac compressor clutch on and off, shorted clutch coil or an incorrect air gap ( explained later ) also vary the! Not affect how the AC was not getting cold at all so I can bring it back behaving.

The Self-care Solution, How To Save Rdp Connection Password, How To Save Rdp Connection Password, House Lifting Jacks For Sale, American University Meal Plans, Rolling Basis Meaning, St Olaf College Moodle 2019 2020, Multi Level Marketing Website,