Having your air conditioning fail on a hot day is one of modern lifes minor tragedies. When the thermometer is creeping toward triple digits, and youre stuck in traffic, the temperature inside your vehicle can become oppressive, even downright dangerous. A failed AC compressor, the heart of your AC system, is often the culprit of a broken AC system. If a mechanic informs you that your air conditioning compressor has failed, heres what you need to know.
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Replacing a cars AC (air conditioner) compressor typically costs between $1,000 and $2,000. The price will vary based on the make and model of your vehicle. Also, labor costs vary from one part of the country to the next, and those regional differences can impact how much you pay to have your cars AC compressor replaced.
About 90% of the cost associated with replacing an AC compressor stems from the price of the parts needed to complete the job. The other 10% is labor.
Its a good idea to shop around and get quotes from different repair shops to ensure you get the best deal.
Your cars air conditioner compressor uses refrigerant to cool the cabin on hot days. A refrigerant is a chemical cooling agent; it absorbs heat energy and moves it away from the air-conditioned area, effectively lowering the temperature in that space. The air conditioner compressor pulls in refrigerant, compresses it, and sends it back into the cars AC system, where it helps maintain cool temperatures within the cabin.
A cars AC compressor typically lasts between 10 and 12 years. This compressors lifespan may vary based on how often you use the AC. Heavy usage could diminish this parts life expectancy, so its something to consider if you live in a hot climate and often have your cars air conditioning on.
Your cars compressor clutch also affects how long your AC compressor lasts. The compressor clutch sends power from the engine crankshaft to the air conditioner compressor via a drive belt. Your cars compressor clutch could fail, requiring the entire AC compressor to be replaced.
New car AC compressor / Credit: yanik88 via Getty ImagesHeres some guidance on how to maintain the health of your cars air conditioner compressor:
Your cars cabin air filter helps remove pollutants like pollen and dust from the air circulating within the vehicle. It may restrict airflow if it gets dirty, and this can tax the AC compressor. Keeping the cabin air filter clean can help ensure your cars air conditioner compressor lives a long, healthy life.
Engine coolant absorbs heat from the cars engine and prevents the AC compressor from working too hard when its hot outside. Keeping the engine coolant topped off can help avoid AC compressor issues.
The condenser is a vital part of a cars AC system. Youll typically find it near the radiator at the front of the vehicle. Sometimes, debris can clog the condenser, which can strain the AC compressor. A clean condenser gives the air conditioning compressor the support it needs to do its job.
Your cars AC system may develop a leak, and prompt repair is essential. A leak can tax the AC compressor and shorten its life.
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Over time, dust and dirt can build up and clog your cars AC system, taking a toll on the air conditioner compressor. Regularly servicing the AC system can help protect the air conditioner compressor from damage.
Specific symptoms may indicate that your cars AC compressor needs repair. Here are some things to look out for:
If the air blowing from your cars AC vents is warmer than usual, you may have a problem with the air conditioner compressor.
If there are noises under your cars hood that emanate from the AC compressor, it could indicate that the part needs repair.
If an inspection reveals corrosion on the AC compressor, it may be a sign that the unit isnt working correctly. Corrosion is caused by moisture, and moisture can damage your cars AC system. Also, check for leaks since they can prevent the AC compressor from functioning correctly.
If you detect a strange odor when you lift the cars hood, it may be a sign that the AC compressor is faulty. A sweet, chemical-like smell sometimes accompanies AC compressor problems.
Changing your cars AC compressor is a tough job. Its best left to a mechanic for these reasons:
It requires a wide range of tools and devices specific to the task. Several tools are needed to replace a cars AC compressor. Youll need several wrenches, sockets, screwdrivers, and pliers to remove and attach the necessary bolts, clips, and clamps. Youll also need an AC manifold gauge to monitor the systems pressure.
Minor errors can have major consequences. Replacing an AC compressor is a precise task; even small errors can cause significant problems. For example, if you nick a seal during the repair, it could cause a leak that slowly drains the refrigerant in the weeks and months ahead.
Youll need to drain the refrigerant beforehand, which can only be done by a licensed professional. Replacing your cars AC compressor may require you to deal with refrigerant. Refrigerant can harm the environment if mishandled. Under the law, only licensed professionals are allowed to work with refrigerant.
Though theyre cheaper than new units, buying a used AC compressor is generally not a good idea. Getting an accurate read on a used units condition and expected lifespan can be tricky, and some repair shops refuse to sell used AC compressors for that reason. A used compressor sitting on a shelf or in a wrecking yard can attract moisture that corrodes its components and shortens its life.
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