The AC compressor is one of the most important, if not the most important, components of a vehicle’s AC system. It is responsible for pressurizing the AC system and keeping the refrigerant flowing so that it can function properly. Because it functions in a continuous cycle on and off, it is subject to continuous wear every time the AC is turned on. Just like any other component on a vehicle, it will eventually fail and need to be replaced. Usually when a compressor has begun to fail it will produce a few warning signs that alert the driver that it may need to be serviced. The compressor is responsible for pressurizing and distributing the coolant, so if there is any problem with the compressor, the rest of the AC system will be affected. One of the first signs that a compressor may be having trouble is the AC no longer blowing as coldly as it once did. A damaged or failing compressor will not be able to properly regulate the refrigerant flow in the AC system, and as a result, the AC will not function properly.

Loud noises when the AC is switched on is another potential symptom of a failing AC compressor. Much like other accessories driven by the engine’s belts, the AC compressor has several interior components and uses a sealed bearing to turn. If any of the interior components break, or the compressor’s internal bearings fail or seize, then all sorts of noises can be produced as a result. A leaking or worn out bearing will produce a high pitched squealing or grinding sound, while a seized or seizing bearing will produce a grinding noise or a noticeable belt squeal. Due to the complexity and nature of how compressors are assembled, it is usually easiest to replace the entire compressor. Another sign of a problematic compressor will be the clutch not moving. The clutch on the compressor is what allows the pulley to engage and disengage it from engine power so that the compressor is only being turned when it needs to. The clutch can seize, which permanently keeps the compressor activated;

or it can break, which means the compressor will not be able to receive engine power. Sometimes the clutch itself can be replaced, but usually replacing the entire compressor turns out to be the most efficient repair. The AC compressor is the heart of the AC system. If you suspect that your AC compressor or another component of your vehicle’s AC system is having issues, consider having the system diagnosed by a professional technician, such as one from YourMechanic. If necessary, they will also be able to replace the AC compressor for you. Buy online and return core parts to the store to be refunded the price. On Orders $75 or Greater and free shipping to APO, FPO, DPO addresses. Save time by buying online and picking up items in store. Do I have a blown AC compressor? Re: Do I have a blown AC compressor? Originally Posted by r1lsrIve only had the car for a little over a month so I haven't really looked into it. Do you know where the relay is located.

Sounds to me like an easy attempt at a fix. Sounds like the A/C compressor, mine took a dump a while back and it to was making a horrible noise and would not throw cold air out.how to defrost ac evaporator On a side note my water pump gave out just the other day and it too was making a horrible noise (for about a week) and the noise was comming from the side of the motor with all the pulleys. car ac repair dohaWhen it gave out all the radiator fluid came out the side of the engine.coleman ac units rv Originally Posted by EP3_and_me Exact same thing happened to me a year ago. I just got the shorter, six rib a/c delete belt and left everything in thinking i would fix it eventually. I bought the compressor but haven't messed with it since. I am going to see if i can swap the pulley and bearing piece so i don't have to remove the entire compressor.

Initially i spaced the clutch out because i thought that was the problem. It turned red from getting so hot so i thought it was dragging on the pulley but i think the bearing is just really jacked up in there. I'll find out i guess. If i don't sell the car that is. Re: Do I have a blown AC compressor? Powerbuilt 648980 Air Conditioner Clutch Holding ToolDetailsTEKTON 3576 Internal / External Snap Ring Pliers Set, 4-Piece FREE Shipping on orders over $49. 12.1 x 5.8 x 0.6 inches #8,365 in Automotive (See top 100) #20 in Automotive > Tools & Equipment > Air Conditioning Tools & Equipment > Air Conditioning Line Repair Tools 13.6 ounces (View shipping rates and policies) For servicing AC clutch while AC compressor is still in the vehicle. Works with both domestic and import AC systems. Comes with lifetime warranty. See all 83 customer reviews See all 83 customer reviews (newest first) Makes the job easy! Worth it even if you only need it once!

Would have given it a 5, but didn't fit 2001 Cherokee Sport Sanden AC clutch holes. Gave it a 4 because after putting the three tips in drill and grinding them down about... Did not fit my particular application. Useless unless you remove the clutch from the car (2007 civic) which I wasn't going to do. Used a vice grip instead, worked fine. Didn't fit the clutch I bought, but I got a prompt refund. Awkward to use but it will hold the clutch while servicing.Air-conditioning noises can indicate proper operation as well as an indication there's a problem developing or present. asked to listen to a certain noise the air conditioning system is making and provide feedback about what it means. In this article we'll discuss both sides of the subject. This will include normal noises you should hear from the system when it's working properly, but first we'll tackle the bad sounds that should be investigated further. Most people are interested in the noises their air conditioning system

shouldn't be making, so we will address those first. are perhaps the most common complaint from drivers. In this situation the serpentine belt is often the culprit. These belt noises can sound like a major problem and are sometimes mistaken for bearing failure. It's tempting, but not recommended to use belt dressing for diagnosis, because it contains oils that can damage the rubber. Instead use a high output spray bottle of water and carefully spray the belt to see if the noise disappears. If it stops squealing when wet this is an indication it needs further inspection. A worn or stretched out serpentine belt along with a malfunctioning tensioner are some of the problems that can develop with an air-conditioning drive belt. However, poor quality parts can make a racket all on their own. I prefer to use Continental Elite or Goodyear Gatorback engine belts with quite technology when replacing parts. Bad compressor pulley bearings can also make noise.

In this situation it increases when the compressor clutch is engaged. Determining the difference between belt and compressor problems can be tricky. If the belt is old you might consider replacing it for maintenance reasons and see if it solves the noise problem. If you need more information on this subject I have posted some diagnostic information and several popular drive belt diagrams on my other site. When in doubt seek professional diagnosis. When we talk about AC compressor noises we're discussing sounds it can make when the unit is engaged. If the Freon has leaked out, it won't turn on, so nothing is moving inside. In this scenario people might try adding refrigerant on their own. Then when the unit kicks on they could hear a noise. A buzzing noise from the compressor when the air-conditioning clutch is engaged is a sign of an overcharged system. In this situation the buzzing sound is caused by liquid refrigerant entering the compressor intake port.

Of course, this problem is most common after an air conditioning service when too much Freon has been added. When this is the case it needs to be corrected as soon as possible, because it can cause internal damage. Replacing a car air-conditioning compressor is expensive and harder than it looks. Also note the AC will not cool properly when it's overcharged. Next up is knocking or clicking sounds while the air conditioner is running. caused by loose mounting bolts that secure individual air-conditioningThis isn't as common as the above conditions, but I have found this issue more then once. You can literally stand back and see the loose component shake and move when the engine is running. Nevertheless, this may actually be the best case scenario for car owners when it comes toTightening a few bolts and adding some thread locking compound will solve the problem for good. Many times a friend or customer will ask me to come listen to a strange hissing sound when the automobile is turned off.

Naturally, this is after running the system for a while on a hot summer day. Although this hissing noise, sounds like a bad noise, it's actually a good air conditioning noise. The hissing sound is caused by equalizing pressure. AC system is running there is a high side and a low side that's divided by either an expansion valve or an orifice tube. sides of the system are necessary for proper operation. When the vehicle is turned off or the air-conditioning compressor clutch is disengaged the system will equalize the pressure. sound is the Freon from the high pressure side slowly feeding into the low pressure side and this is completely normal. Another good air conditioning noise is the roar of theWhen the AC is running the condenser fan will pull additional air through the radiator and the condenser, removing heat from the freon gas and returning it to a liquid state. can cause additional noise that's not present when the systemOften this additional noise is sensed as a problem by