Jeep Ac Compressor Not Cycling

What could be causing this and how do I fix it?. I have a 1987 Dodge Dakota SE 3. I took it to the dealership and they identified that the compressor is cycling too quickly and that the pressure was slightly low. This means the relay clicked, but did not work as intended. Does your AC unit smell funny when you turn it on? Click here to learn why. My A/C compressor responds right away to the A/C button. His wife's recently purchased, used, 2012 Jeep Wrangler Sport Unlimited 4 Door started smoking from under the hood. I watched the compressor and see it run at startup, however, after five or ten minutes the compressor starts cycling on and off, mostly off. 2 not cycling somewhere. If filled to the specifications on the provided gage it should not cycle. You will damage the compressor. the grand wag should take just under 2 cans of refrigerant. Jeep Grand Cherokee Air Conditioning Not Blowing Cold Causes. Tyvm You can replace the clutch and bearing, it is fairly easy or you can take the AC compressor out completely, but you need a bypass pulley in its place. It continues to do this until I shut it off. In this case, the little rotary compressor is an OK A/C compressor, but you'll have a lot of difficulty and compromises making a decent shop compressor out of it. the cooling system is not able to reach the indoor set point on the thermostat) and the the compressor shuts off for just a few minutes, then re-starts, I suspect. This is a full explanation of how the system works. Back to the OP, you can bypass the low pressure switch and it should kick the compressor on whether its low on freon or not but dont keep it engaged, only for the test. Moisture will react with refrigerant oil and produce acids and. Jeep Grand Cherokee owners have reported 19 problems related to air conditioner (under the equipment category). If your central air conditioner will not cool but you can hear it running, it may just need to be cleaned. Technician A says this condition can be caused by a low refrigerant charge. But first, know some facts about an AC clutch compressor. This article will help you decide on what to do when the AC compressor clutch is not engaging. Check out this! Running your Air Conditioner when its 100+ Degrees Outside from Clear the Air AC. The air conditioning system can simply be described as a heat pump, removing heat from inside the vehicle and transferring it outside the vehicle, using a system of fans, radiators, and a compressor. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. Oftentimes, the cause of an AC compressor failure is due to preventable problems. OK, there is another scenario where the air compressor will not stop and just keeps on running. please advise. GM Car AC Compressor Problems. I do not know much about vehicles and unfortunately I do not have the money to take it the shop right now. Also please check out the statistics and reliability analysis of Jeep Grand Cherokee based on all problems reported for the Grand Cherokee. His wife's recently purchased, used, 2012 Jeep Wrangler Sport Unlimited 4 Door started smoking from under the hood. compressor air conditioner, jeep. So if the compressor clutch is faulty and failing when it gets hot (like after a multi-hour drive), it would essentially turn off your AC. Onto Google I went. Although it may be alarming the first time it happens at a stoplight or when you are idling at the store, it is very normal. In fact, most won't even cycle on without the right amount of refrigerant pressure. Since my system is wired to a constant 12 volt supply, the compressor would cycle on and off indefinitely if only the pressure switch were used. Some of these complaints can be read below [sic throughout]. could it be some switches is bad. There are several factors that typically cause short cycling. Sometimes an air compressor will turn on and off rapidly in an unending fashion, this is an occurrence known as short cycling. However, you can see a hairline crack in the brass contact strip that allows current to flow to the AC compressor. Now that you understand why it’s so critical to keep your compressor in good shape, let’s take a look at some of the things that can cause AC compressor failure and what you can do to avoid them. Examining Air Conditioning Clutch Failures in the Field This guide can be used as a reference to diagnose clutch failures, and is specifically designed to help you differentiate between unwarrantable clutch failures and those that would normally fall under possible warranty consideration. At the time AC off, the Pulley and the shaft at the compressor is not connected, so although the pulleys rotating, compressor does not work. Five causes of a home air conditioner compressor short cycling on and off too rapidly - Short Cycling Air Conditioner Diagnosis & Repair. I drive the car or let it idle for 1/2 hour twice a week. If this is too frequent, is it a sign that I need to add refrigerant? Thanks for any help. What could be causing this and how do I fix it?. It happens even when the AC button isn't pushed. charging with the can upside down into the low side will charge with liquid & will most likely blow the compressor seals. Refrigerant Since the mid-'90s, all vehicles have been using R-134a refrigerant, but soon, vehicles will arrive at your shop equipped with R-1234yf refrigerant. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. This can occur when seals get dry from lack of use in winter. Even the ink that was put in after the first refill did not show up the leak. to energize/de-energize the clutch???? Also noticed more condensation on the ground while AC is on, might be because compressor not cycling?? Not sure where to go from here. I have no cold air at all. Confusing= Dug into the 05 owners manual. Airing up your tires is definitely a must after a long day of off-road driving. A/C, however, is not working. This program was to cycle the AC compressor in intervals that would eliminate the freezing. Could this just be the clutch? Anyone else have this happen. The AC air is not hot, but it is definitely not cooling as it should. If I turn off the A/C the compressor kicks off right away. However, many parks either do not have air compressors or the line is always way too long - forcing you to find the nearest gas station to get the job done. I've determined that whatever provides the grounding path for the clutch relay does not do it. Refrigerant leak Your air conditioner could be low on refrigerant. I recently had a Ford Crown Victoria police car from a local township with multiple air conditioning problems. Please note that this switch has a square connector, for 1998-1997 there is another switch that has a oval connector. charging with the can upside down into the low side will charge with liquid & will most likely blow the compressor seals. As soon as I hit the button and A/C button lights up, the compressor kicks on. Get the best deal for Universal Air Conditioner Parts for 1999 Jeep Cherokee from the largest online selection at eBay. When a compressor clutch does not disengage, it will cause the refrigerant to build up and freeze the line. Short cycling air conditioner problems: Our air conditioning compressor cycles on and of every few seconds or minutes. I drive the car or let it idle for 1/2 hour twice a week. both in not cooling very well and with the cycling of the clutch. Advance Auto Parts has 16 different A/C Compressor Job/Kit for your vehicle, ready for shipping or in-store pick up. So I got a hose with gauge AC Pro Recharge Hose with Gauge ACP-400: Advance Auto Parts and 3 12oz cans of R134a. Considering that India is a highly damp nation, Air Conditioning is consistently on, but attempt utilizing it much less usually considering that it places pressure on the auto parts and also you wish to extend the life of your auto do not you? Consumers often tend to watch out for automobile suppliers. Buy a 2004 Jeep Grand Cherokee A/C Compressor at discount prices. If you have a situation where your car's air conditioner compressor clutch doesn't engage, try the troubleshooting techniques described here. Air conditioner compressor clutch not engaging. won't stay engaged the jeep up and allowed it to run with ac engaged. How to repair while troubleshooting an auto AC Compressor - Learn to properly install a car AC compressor for your Auto AC System. My first thought was a tranny pump whine but when the AC is off it doesn't whine so guess it is the AC compressor. I started to do a recharge (says R 134A on the compressor and manual), and I couldn't tell if the compressor clutch was engaging or not (as I had not see it run before I was unsure what to look for). At the time AC off, the Pulley and the shaft at the compressor is not connected, so although the pulleys rotating, compressor does not work. Hello! I own a 1998 Jeep Cherokee SE (not a Grand) 4. Air compressor exhaust could be normal exhaust ports for the ac cyl or sparkplug holes, block off the ones not used. Whether or not this is the cause of the problem, it’s a good early remedy to try. If that liquid gets sucked into the compressor, it can ruin it, real quick. This is a switch sort of thermostat, not one with a resistance-based sensor. the cooling system is not able to reach the indoor set point on the thermostat) and the the compressor shuts off for just a few minutes, then re-starts, I suspect. This, capability improves as the cycle time increases. I used a 14 gauge wire to jump the low pressure and high pressure sides with no luck. In hot weather (>80 degrees), when I first turn on the AC it blows nice and cold for up to 30 minutes, after which it gradually gets warmer and then hot air comes out. Now that you understand why it's so critical to keep your compressor in good shape, let's take a look at some of the things that can cause AC compressor failure and what you can do to avoid them. When AC compressor failure happens, it’s often due to an underlying issue that causes stress on the. One is almost freezing and the other is very warm to the touch. The cycling switch cycles the compressor on and off on the low side of the system. The only way I get it to turn off is when I turn the fan off or press the A/C button. Skip to content. AC not running in my 1998 Jeep Cherokee. charging with the can upside down into the low side will charge with liquid & will most likely blow the compressor seals. 0L, in Palo Alto, CA. Your radiator and coolant are not connected with your air conditioning system, so it’s a good thing they’re full, but unfortunate won’t help you diagnose your problem here. After they did the reprogram I noticed that there was a large swing in the temperature of the air coming out of the vents. Again, my apologies. Today's powerful, miniaturized technology enables carrying a Jeep Wrangler air compressor in your that can fully inflate a 35 inch tire in just 2 minutes. 2 not cycling somewhere. 0L I am not getting any power to my ac compressor. I have been hearing a whining sound that increases and decreases with engine speed. Easy to use parts catalog. My mechanic explained the ac fan which blows the cold air from the ac needed replacing. Air conditioner compressor clutch not engaging. Trouble shot the wiring back to the relay and find that something isn't firing the relay. Our Blog is a great place to start learning more about Clear the Air and the many services we offer in and around Houston TX. If you get the noise when the ac compressor is turning, then the bearing/s inside of the compressor is/are bad and the compressor needs replacement. If it is doing so rapidly, though, it can indicate an improper charge (such as being low on R-134a refrigerant). Manual states something likeat times you may have to. Cycling Switch, For Pressure Switch, Used at Switch. To disengage the clutch, a switch must be replaced. start the jeep turn on ac check for 12 volts and ground at the compressor if power and ground are good the clutch is not working if there is no power or no ground check the circuits the power comes from a relay in the under hood relay box swap relays in the. Plan to do this on a relatively warm day. 0L Cummins Home Ford 6. I was hoping it was just low, but it appears something more could be wrong. Is an AC compressor's clutch supposed to cycle off. This is a full explanation of how the system works. Now that you understand why it’s so critical to keep your compressor in good shape, let’s take a look at some of the things that can cause AC compressor failure and what you can do to avoid them. Why Does an AC Compressor Clutch Engage and Disengage? An air conditioner clutch that repeatedly engages and disengages is usually an indicator that the vehicle's system is low on refrigerant. If you jump the low pressure switch with the engine running, do it only for a few seconds. That would pretty well explain the lack of cold air, huh, Charles? Plus, while the AC's not working, warm, moist air enters the cabin and builds up around the AC evaporator under the dash. Refrigerant leak Your air conditioner could be low on refrigerant. There are a few reasons your AC system might stop working and the central part of it is the AC Compressor. 2 doesnt cycle, the compressor stays engaged the whole time. Consumers Complain About Heat, AC Not Working. In fact, most won’t even cycle on without the right amount of refrigerant pressure. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. This Listing includes the Suspension Compressor. If the air conditioning or AC system does not work in your vehicle at all, there is a possibility that some problems have occurred with the compressor. Bad AC Compressor Symptoms. Automotive Air conditioning: how it works. The most obvious symptom is when the air conditioner does not blow out cold air anymore. If filled to the specifications on the provided gage it should not cycle. Never use a power washer for this—it can damage the fins. Based on defrost symbols and what is stated below, there still should be 2 positions remaining, where the compressor should not engage, with AC button off. 5 LBS or suburban with rear AC?. This switch is on the accumulator and cycles the compressor clutch. Hello, I have a 2007 jeep liberty, the AC clutch will not engage. If the AC is cycling all the time then there is always condensation dripping, right? I have noticed my 98 always has water dripping off the condensor when I haven't even turned the unit on at all. 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. Repairing a Jeep JK AC Compressor Clutch November 21, 2014. Repair as necessary. If that does not work then do as suggested above and hard wire the ac compressor to a 12v source. * Compressor problem- Your a/c compressor is the engine of the refrigerant cycle. In the afternoon when driving home from work with outside temps around 85-90 degrees, the AC will work fine for about 5-10 minutes then the compressor will start to cycle on and off every 6 seconds while driving and the inside vent temprature will rise to 52-58 degrees. In this video I will walk you through testing system. Step 2: Locate Air Compressor Unit. Is the compressor really still cycling on and off when the switch is turned off inside?. The compressor would cycle on/off before it would cool down. 7L engines 4. Electrical problems beyond these may best be referred to a qualified technician. Based on defrost symbols and what is stated below, there still should be 2 positions remaining, where the compressor should not engage, with AC button off. it's perfectly normal for the AC compressor to cycle. Seeing as how it's reading MUCH higher than that, I don't think the compressor is engaging. Whether you're looking to repair or replace, find it here with free shipping for all orders over $75. Visit our array of yr warr now. This car had been worked on previously by some other shop and had a new condenser and accumulator installed on the car. Anyone else hear a high pitched whistle sound from AC when starting? Jeep #5 JS2000, Jan 25 the defrost system uses the a/c compressor and the fans will cycle. Before making any final decisions, you need to perform a little troubleshooting […]. Not following the proper service procedures or compressor oil recommendations could be factors that contribute to premature compressor failure. The most obvious symptom is when the air conditioner does not blow out cold air anymore. The most recently reported issues are listed below. Was going to add freon with store bought kit that had a gauge. I have a 1997 Saturn SC2. 2 not cycling somewhere. A/C compressors are difficult to work with because of the refrigerant stored inside. Symptoms of a Bad or Failing AC Clutch Cycling Switch. Section, which authorized the car will be launched in mid-2010 this contains many latest advanced technology, not just economize!. - Al_ Mar 24 '18 at 17:11. Confusing= Dug into the 05 owners manual. Shop a wide range of Jeep, truck and SUV air compressor kit onboard air & accessories and related parts for your vehicle. This is often caused by loose mounting bolts that secure individual air-conditioning components. Even worse, the acid can corrode the inside of your compressor, spreading metal fragments throughout your A/C system and causing widespread damage, blockage, and component failure. Maybe it's your window ac compressor not turning off or maybe your condenser coils are dirty. I can hear the compressor pull the engine down just a bit like usual. 0L I6 with 4WD. When the vehicle drops below factory height, the compressor turns on and fills the air bags. 50 thoughts on “ High Pressure Air Compressor Using A Pair Of Refrigeration Compressors ” IIRC Jeep enthusiasts have converted the ac compressor into an on-board air compressor using the. There are 9 selectable positions in the 2004 and 7 including the off in the 2005. Our AC compressors are made to last using only the highest quality materials and precision manufacturing. Use the links and information below to find your vehicle's Aftermarket AC System. If you hear squeaking or squealing sounds from the compressor or notice that your air conditioning isn’t blowing cold, check your A/C compressor. Once the air. More makes and models coming soon! Chrysler, Dodge Jeep & Plymouth. Got a central air conditioner that turns on and off every few seconds or minutes? This is called “short cycling” (because normally the AC has a regular on and off “cycle” that varies with the outside temperature. Maybe it's your window ac compressor not turning off or maybe your condenser coils are dirty. Replacing the cycling switch is very easy, and you do not need to remove the compressor or the the entire conditioning unit. Examining Air Conditioning Clutch Failures in the Field This guide can be used as a reference to diagnose clutch failures, and is specifically designed to help you differentiate between unwarrantable clutch failures and those that would normally fall under possible warranty consideration. by Mary (Iowa) Question: AC Unit comes on for short time and clicks off and then back on and then off again. If it is doing so rapidly, though, it can indicate an improper charge (such as being low on R-134a refrigerant). (Skip to step 10) There is an electrical problem in the air conditioning circuit. Please note that this switch has a square connector, for 1998-1997 there is another switch that has a oval connector. It's not the fact that your air conditioning system is cycling that is a problem, but the frequency that indicates problems. If that liquid gets sucked into the compressor, it can ruin it, real quick. Hence, it is not necessary that an air conditioner with short cycles consumes less power than one with long cycles. This means the relay clicked, but did not work as intended. the grand wag should take just under 2 cans of refrigerant. Vent temp stays about 45 degrees and the compressor seems to stay on continous. it is a fail safe for those who don't run their AC in the summer to keep the compressor properly lubricated. Buy OEM Jeep Part # 05012348AA. Most systems has a high pressure and a low pressure switch that will turn off the compressor. Here at Advance Auto Parts, we work with only top reliable A/C Compressor Job/Kit product and part brands so you can shop with complete confidence. To summarize, when I go up a hill (unfortunately I can't quantify the hills or angle required to do this. Any guesses?. The Air Conditioning won't work on the 2002 GMC Sonoma I just bought. Jeep ac condensor keeps cycling on and off? Answer. please advise. Sign In If you read through our A/C forum much, you would have seen that it is not unusual for us to decline advice to novices when it concerns refrigerant related problems that they are not equipped or knowledgeable enough to handle safely. I’m not kidding about this. Learn More. I did not have a thermometer to check the actual temperature. However, you can see a hairline crack in the brass contact strip that allows current to flow to the AC compressor. An AC clutch compressor is a type of compressor that derives its power from the car engine's flywheel. 3 to optimize fuel consumption by turning the compressor off once the target temperature had been reached 4 to prolong the service life of the compressor. Have the system evacuated, charged and leak tested by an MVAC certified technician, utilizing approved recovery/recycling equipment. Here, we will discuss the basic function of the main components of your vehicle's A/C system. Also please check out the statistics and reliability analysis of Jeep Grand Cherokee based on all problems reported for the Grand Cherokee. There are 9 selectable positions in the 2004 and 7 including the off in the 2005. How to fix a squealing AC. Tyvm You can replace the clutch and bearing, it is fairly easy or you can take the AC compressor out completely, but you need a bypass pulley in its place. With the engine running and AC maxed, I started adding refrigerant. I can hear the compressor pull the engine down just a bit like usual. charging with the can upside down into the low side will charge with liquid & will most likely blow the compressor seals. Air conditioning is the process by which air is cooled and dehumidified. Why does my AC compressor cycle on and off is a common question that every AC contractor hears repeatedly. Jeep Cherokee 1997-2001: Why is the A/C Not Working? The air conditioning system in your Jeep Cherokee is quite advanced, but it doesn't have to be very complicated to find out what is wrong when it is malfunctioning. The A/C clutch does not engage, even though the system is full of refrigerant. This relay clicked as it became energized by the ECM. After they did the reprogram I noticed that there was a large swing in the temperature of the air coming out of the vents. I bought this 1997 Jeep Wrangler in Feb 08, and I just foung that the A/C doesn't blow cold. 3 cans is 2. Air conditioning can be used in both domestic and commercial environments. ill check the relay in the mean time. it's perfectly normal for the AC compressor to cycle. Year of vehicle: 2001 Make of vehicle: Jeep Model of vehicle Cherokee Engine size 4. Soon, the air blowing from the vents begins to cool. The compressor would cycle on/off before it would cool down. 0 Mileage/Kilometers 150k MOL A/C 1. The air conditioning in your car, your home and your office all work the same way. What does it mean when your car air conditioning compressor clutch keeps cycling off and on? Probably low on freon, you may have a leak in. Or, when an air compressor will not stop, it could also signal a major safety concern, and should be addressed immediately, before using the compressor again. 2 not cycling somewhere. Mine will cycle on and off like that when the ambient is cool or the fan setting is low. If your AC is turning on and off frequently, you’re experiencing something called short cycling, one of the most common air conditioning problems among homeowners. Re: 1999 Jeep Cherokee Sport Air Conditioning Problem 08/28/2009 4:19 AM It could be a weak compressor, try hose on the evaporator and see if significant change of temperature occurs, if not return to the shop and have them adjust the refrigerant level to that which will produce the coolness desired. Long story short, air conditioner compressor noises are usually bad news. both in not cooling very well and with the cycling of the clutch. if you don't want to spend the money to have it looked at. So now I think the A/C compressor cycling when the Jeep is stopped is due to the electric fan not running. Technician B says this could be caused by a faulty clutch cycling switch. Do the hard wiring of the compressor AFTER you jumper the low pressure switch, the most common ac failure is no or low. Re: AC Compressor constantly Cycles. I did not have a thermometer to check the actual temperature. This is often caused by loose mounting bolts that secure individual air-conditioning components. (Unless it is cool/cold out. Just don't know what drives the relay when the AC. It’s not the fact that your air conditioning system is cycling that is a problem, but the frequency that indicates problems. While it is not as fast as the 550 series, it is moisture and dust resistant and can be mounted under your truck. If this is too frequent, is it a sign that I need to add refrigerant? Thanks for any help. When it was low on gas the clutch would cycle on and off much more rapidly than normal. Thankfully, you don't have to go without a working air conditioner in West Volusia County, Florida for long! The following tips from Jacob Heating & Air Conditioning can help you fix your AC compressor today or prevent future damage from occurring. there was a thread talking about the 2. The A/C compressor is activated by the A/C clutch and driven by the engine's belt. Is the compressor really still cycling on and off when the switch is turned off inside?. The pulley turns whenever the engine is running, although the compressor clutch is not engaged when the air conditioning is turned off. Have the system evacuated, charged and leak tested by an MVAC certified technician, utilizing approved recovery/recycling equipment. There are 9 selectable positions in the 2004 and 7 including the off in the 2005. The AC compressor clutch will not activate when plugged into the original harness, even though power is coming from the dash switch. 2 Lbs Max I had to replace the compressor hose set because the old one had a pin hole in it. That right there will tell you if the ac is low on refrigerant. This is a full explanation of how the system works. The High Pressure, Cycling, and Lo pressure refrigerant switches also go to the ECU. 97 Jeep Cherokee AC compressor or Electrical fan? if the electric fan motor was dead would that not allow the AC compressor this is the basic A/C cycle. Get the best deal for Universal Air Conditioner Parts for 1999 Jeep Cherokee from the largest online selection at eBay. When using the AC during the morning or at night or when the sun not fully out the fan comes on but shut off after bout 30 sec to a min. Vent temp stays about 45 degrees and the compressor seems to stay on continous. 0L Cummins Home Ford 6. This occurring during the day when it is real hot. Can't seem to get compressor to kick on? Please help! SOS! Thanks!. Normally on every prior car I owned an AC compressor will run, when selected, continuously providing cold air when mechanically sound. The quality of air compressor auto is then of great significant for it is of the safety concern. Step 2: Locate Air Compressor Unit. I am worried about damaging my compressor. I used a 14 gauge wire to jump the low pressure and high pressure sides with no luck. AC compressor replacement If you have noticed that your AC compressor is worn out, try to replace it as soon as possible. The A/C compressor clutch must be cycled on and off to prevent the evaporator from icing up, as well as to to prevent compressor damage. Jeep ac condensor keeps cycling on and off? the air conditioning compressor will cycle on and off to help dehumidify the air if the outside temperature is about 50 degrees Fahrenheit or warmer. So 35 PSI R134a is 40 degrees - the range the switch should kick off the compressor. Go ahead and close the valve and remove the hose from the car. the grand wag should take just under 2 cans of refrigerant. The compressor is rapidly cycling on and off on a CCOT air conditioning system. This is a 2005 Honda Odyssey with an A/C system problem. So the AC fix was going to be $12-1500, with no guarantee that the Cadillac compressor worked well with the higher pressure of R134 (I’ve read they don’t). I hope you have replaced the accumulator as it's generally required to maintain the compressor warranty and it really is necessary. If your air is blowing cool but not cold, the problem could be a clogged filter, cooling fan problem, radiator trouble, or it could simply be that you need to recharge your AC. by Mary (Iowa) Question: AC Unit comes on for short time and clicks off and then back on and then off again. to energize/de-energize the clutch???? Also noticed more condensation on the ground while AC is on, might be because compressor not cycling?? Not sure where to go from here. Go ahead and close the valve and remove the hose from the car. it's perfectly normal for the AC compressor to cycle. Or, when an air compressor will not stop, it could also signal a major safety concern, and should be addressed immediately, before using the compressor again. A compressor in a Wrangler costs less to replace than in the Cherokee, which can run over $900. steve your AC compressor will cycle on any setting regardless of the button to the right of 12 o'clock. Never use a power washer for this—it can damage the fins. Air conditioning can be used in both domestic and commercial environments. anywhere from 14-35 dollars. I have two connections going from the ac compressor through the firewall. Seeing as how refrigerant charge normally will not cause this condition, I decided to run the vehicle with the a/c on and the controls set to full cold and …. When it was low on gas the clutch would cycle on and off much more rapidly than normal. When I have the A/C running (fan on low) I notice that there is a intermintant sound that sounds like an increase in power but no increase in air flow through the vents. Buy OEM Jeep Part # 05012348AA. Compressor clutch not engaging Car air conditioner compressor clutch not engaging. The compressor is probably the FS-10 compressor, which was very common in a lot of vehicles, and you can replace the clutch without replacing the entire AC compressor or having to open up the AC lines. Maybe i've got an idle/crankshaft sensor problem and the AC compressor is trying to tell me that. it's perfectly normal for the AC compressor to cycle. 2000 Jeep Cherokee Classic 4. However, many parks either do not have air compressors or the line is always way too long - forcing you to find the nearest gas station to get the job done. low or high freon levels will make the ac cycle to much or not enough also 98 TJ Wrangler - AC problems And for @Stealheadz- my wife drives the jeep and if. Next up is knocking or clicking sounds while the air conditioner is running. Maybe they programmed the cycling to keep the system lubricated which enhances longevity? That's all I can guess about the "why" of it all. Onto Google I went. Both the air line on the compressor and on the gauge would be easier to use if they had an angled chuck; the straight chucks provided are awkward to attach, especially on the front tire of a bike with big disc brakes. Based on defrost symbols and what is stated below, there still should be 2 positions remaining, where the compressor should not engage, with AC button off. I have electrical problem: the clutch won't engage on my Jeep Cherokee Laredo 92. Air conditioner system is discharged. An AC clutch cycling switch is used to determine low side A/C pressure (which is directly proportional to temperature). Replacing the cycling switch is very easy, and you do not need to remove the compressor or the the entire conditioning unit. How do you bypass the ac pressure switch? I need to put in some freon and the pressure is so low that the pressure switch won't let the compressor kick in. Is an AC compressor's clutch supposed to cycle off. Even the ink that was put in after the first refill did not show up the leak. Repairing a Jeep JK AC Compressor Clutch November 21, 2014. The compressor is short cycling as if the refrigerant is low but but the R134a pressure is 40 psi on the low side. The computer interprets this as an air conditioning demand. So if the compressor clutch is faulty and failing when it gets hot (like after a multi-hour drive), it would essentially turn off your AC. Limit all Sanden compressor searches to four numeric digits only. Now that you understand why it’s so critical to keep your compressor in good shape, let’s take a look at some of the things that can cause AC compressor failure and what you can do to avoid them. In fact, most won't even cycle on without the right amount of refrigerant pressure. However, many parks either do not have air compressors or the line is always way too long - forcing you to find the nearest gas station to get the job done. A/C compressor cycles. it's perfectly normal for the AC compressor to cycle. Technician B says this could be caused by a faulty clutch cycling switch. com is the place to go for a new ARB 4x4 Accessories air compressor, whether you need a. A number of consumers have posted online about the problems they've experienced with their Jeep and Dodge vehicles. Easy to use parts catalog. With the AC compressor running it should read ~40psi. I’m not kidding about this. Author Sparky Posted on March 14, 2009 August 28, 2016 Categories 2002, Find Answers, Jeep, Jeep, Liberty Tags A/C, Compressor Clutch, Jeep, Liberty I had a 2002 Jeep Liberty come in with the complaint that the a/c will stop cooling after about thirty minutes of driving.