Symptoms of a Bad or Failing AC Compressor

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Cost of Replacing a Bad or Failing AC Compressor

Common signs include higher than normal cabin temperatures, loud noises when the compressor is running, and the compressor clutch not moving. Our certified technicians can come to you and diagnose the problem. You will receive a $30 credit towards any follow-up repairs that result from the diagnostic. Following are example prices for Car AC Compressor Replacement. Click on the button below to get an upfront quote for your car.

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2010 Nissan Pathfinder $1292 $536.44 $756.00 23% $1697.44
2013 Chevrolet Orlando $1341 $787.94 $553.00 18% $1637.19
2007 Honda S2000 $1289 $868.56 $420.00 14% $1513.56
2013 Infiniti M56 $1805 $1042.03 $763.00 18% $2213.78
2009 Cadillac Escalade $1039 $562.83 $476.00 19% $1293.83
2004 Porsche Boxster $1001 $637.17 $364.00 16% $1196.17
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How to Diagnose a Bad or Failing AC Compressor?

AC Compressor

The AC compressor is one of the most important, if not the most important, components of a vehicle’s air conditioning 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 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 begins to fail it will produce a few warning signs that alert the driver that it has a problem. The compressor is responsible for pressurizing and distributing the refrigerant, so if there is any problem with the compressor, the rest of the AC system will be affected.

1. Cabin temperatures higher than normal

One of the first signs that a compressor may be having trouble is the AC no longer blowing as cold 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.

2. Loud noises when the compressor is running

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 seizing or seized 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 instead of attempting a repair.

3. Compressor clutch is not moving

Another sign of a problematic compressor is the clutch not moving. The clutch on the compressor is what allows the pulley to engage and disengage from engine power so that the compressor is only turning when it needs to be. 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.

ventilation
air conditioning
compressors

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Recent Car AC Compressor Replacement reviews

Excellent Rating


YourMechanic Car AC Compressor Replacement Service

Average Rating

4.6/5

Number of Reviews

344

Rating Summary
316
17
3
0
8
316
17
3
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8

Patrick

30 years of experience
865 reviews
Patrick
30 years of experience
Patrick got the ac running .
2006 JEEP GRAND CHEROKEE - AC COMPRESSOR - AUSTIN, TEXAS

Jose

14 years of experience
433 reviews
Jose
14 years of experience
Right on time. Excellent work. Friendly and knowledgeable. I'll use Jose next time and would refer him to anyone. Thank you for a pleasant experience.
2006 GMC YUKON - AC COMPRESSOR - VANCOUVER, WASHINGTON

James

28 years of experience
364 reviews
James
28 years of experience
2003 FORD EXPLORER - AC COMPRESSOR - ORANGE, CALIFORNIA

Jacob

9 years of experience
119 reviews
Jacob
9 years of experience
Absolutely amazing I had 2 previous mechanics come out for my a/c not working diagnosis and both gave me a wrong diagnosis and didn’t fix anything. Jacob came out and ACTUALLY DIAGNOSED the problem and replaced what was necessary. He saved me over 700 dollars. If you live anywhere in his service area book him no matter the wait you would be stupid not too
2012 BMW 328I - AC COMPRESSOR - FRISCO, TEXAS

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