Hey, when my 02 Legacy car is running, it makes this really loud roaring noise. It looks like its komimg from the air conditioning unit under the hood. Do you have any idea what that might be? It gets stronger when I accelerate or turn the engine in the park. It does this whether the air conditioning is on or off. I`m 95% sure it comes from the air conditioner under the hood. The part to which the belt is connected is where it is the loudest at Hi Justin, I have a 2010 Subaru Legacy (BR) H4SO with an air conditioning problem. The compressor clutch turns on first (gives cold air), but turns off after a few minutes of operation/rotation. The problem is that it doesn`t ask to turn on again, I guess (because I put a voltmeter on the A/C clutch magnetic circuit and didn`t specify a 12V reading there). Remarkably after a 4-hour drive the other day, as I was walking down a hill with the air conditioning on, it came alive and gave really cold air. This makes me think that this is one of many sensors. Which one do you think I should change/test first? I also have an old BP Legacy model that has broken down, and I can go through the sensors and relays if some are the same. I got it from our local Subaru dealership and told them the gas was full and no regassing was needed.

They believed that regassing would solve the problem, so I allowed them to do that, which did not solve the problem. So they charged me for this as well as the replacement of the AC order module, but still errors and would like to have more time to diagnose at $110 an hour. Any help you can offer in the form of remedies or possible solutions other than going back to bend again would be great. Thank you This forum is amazing. I have a 1997 Legacy L car, 2.2 L. I need to replace my AC compressor and clutch. I have three questions: 1) Used compressor/clutch with warranty – do smart people take risks with used compressors? 2) Do the 2.2-liter legacies share similar AC components with outbacks and 2.5-liter GTs? (for exchange purposes) and 3) Do you do paid telephone consultations for certain unrelated Subaru performance issues? I`m in California. Thank you! I love your article above. I recently bought a 1995 Subaru Legacy.

The car is in pretty good condition, but the air conditioning really doesn`t work. My husband and I work in HVAC, so we know our way around compressors, but the compressor and coil work well, and it`s loaded with 134A, it only seems to work when we jump out of the relay. If the relay is not out, the relay turns on and off approximately every 20 to 30 seconds. We are not particularly well informed about the air conditioning of the cars, so we considered replacing the relay. Is this a good idea or is there another part that we should look at and are we not aware of? However, the worst damage is a failure of the AC compressor, when it “eats” itself due to insufficient lubrication or production failure, metal chips form that are distributed throughout the AC system of the LEGACY. If you only install a new compressor here, another failure is inevitable because the chips immediately destroy the new component. In such a case, almost the entire air conditioning system needs to be replaced. Here, a maximum of metal pipes can be rinsed. Since both heat exchangers (condenser and evaporator) are designed in a cross-flow design, the cleaning agent finds the way with the least resistance and leaves the chips behind. However, the high-pressure refrigerant retracts these chips during operation and subsequent damage is inevitable. The new AC systems (2005 and above) are smaller than before and even a slightly low load can affect performance.

A clogged or leaking capacitor can also be the reason why your Legacy`s air conditioner isn`t working properly. A leaking condenser can lead to a loss of refrigerant and a reduction in the cooling performance of the system. In order to detect leaks in the air conditioning system, leak detection is carried out in the workshop using forming gases – even the smallest leaks can be detected. In this way, it is possible to determine if the loss of the refrigerant is due to a defective condenser. If this is the case, the only option is to replace the defective part. The air conditioning (AC) of your Subaru consists of the following elements. Hello. This is a situation where I would normally ask my father for help because he is an excellent mechanic, but he died in December and I am lost. I have a 2005 Outback XT. When we bought this vehicle, my father said that a warehouse with air conditioning malfunctioned because of the noise it made every time it was turned on.

Of course, this would not reproduce this noise for the dealer. A year later, it made a loud noise every time the air conditioner was turned on. I should turn it off when I go through drive-throughs. It looked like a noisy fan blowing. Almost a growl or grinding. My husband said it was probably just the camp and it didn`t hurt as the air worked very well and was cold. Until yesterday. After turning on the air conditioner to cool the vehicle, the air conditioner squeaked incredibly hard for about 10 seconds, and then she died.

Stop blowing cold air completely. The fan works well, but no cold air. The capacitor continues to rotate and make noises regularly, but now I`m afraid to drive it and do more damage. The belt looks intact, but I don`t know what the squeak was or what to do now. I read everything from bearings, clutches, pipes, leaks, belts, pulleys. I just pray that it won`t be the capacitor because I know it will be expensive. My husband is able to replace parts and work on cars, but he just needs advice on where to start or what to look for. Any suggestions would be appreciated. Does my classic 1990s car have a cabin air filter? At 270,000 miles, I would like to change it, but I can`t find it. Maybe it will help with air conditioning problems. The car has always lived on a long dirt road.

george My 2005 92X Aero (trailing WRX) currently has no air conditioner blowing out of the air vents.