Noise or Vibration When AC Compressor is On on Kia Optima

A defective AC compressor clutch assembly can cause excessive noise or vibration when the air conditioning is on. Improved parts are available. Replacing the faulty clutch assembly does not necessitate replacement of the complete AC compressor or evacuation and recharging of the air conditioning system.

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Average mileage: 90,107 (20,000–270,000)
13 model years affected: 2001, 2002, 2003, 2004, more2005, 2006, 2007, 2008, 2009, 2010, 2011, 2013, 2015
53 people reported this problem
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Viewing 1 - 20 of 24 problem details
I took my 2015 kia optima (4 cylinders, 20000k) for an oil change, they also recommended the cabin air filter, I was ok with the price so they did it for me. That same day my a/c was working perfectly fine. The next morning I turned my a/c on and I noticed that it was blowing hot all the time so I took it back to my mechanic, they told me that it wasn't anything that they did wrong that the problem was my a/c compressor clutch, it was locked up, that my clutch should kick on, spin and stop spinning multiple times when the a/c was turned on from the switch and stop spinning completely when is turned off from the same switch, when the engine was off they also told me that the clutch should be able to turn by hand and mine was totally impossible to turn like that. I'm not a mechanic and I have no idea if they are saying the truth. Can anybody help me please?
2011 Kia Optima 38,900 mi,
On long trips, the clutch works and A/C blows cold. On short in town trips, NO A/C!
2005 Kia Optima 106,000 mi,
my clutch assembly won't engage. very loud squeeling noise.
2003 Kia Optima 110,000 mi,
When the A/C is on and I am shifting gears, as I let out of the clutch and accelerate, an awful high pitched squeaking noise comes from the A/C belt of the car. I am under the impression that it has to do with the compressor but am not yet certain. I've been advised that it could be other smaller problems. However, the compressor is the only one that fits all of my cars "symptoms." Having the A/C on also causes my engine to run harder and with much less power, as well as die if decelerating from a high speed by only pushing in the clutch and sometimes when slowly shifting gears.
2011 Kia Optima 60,000 mi,
This problem started just about the time my warranty expired, of course! Symtoms: 1. a/c takes long to get cold once car initially starts. 2. Only gets cold if engine is running at about 2000 rpms. 3. Compressor makes whining noise.
2008 Kia Optima 58,000 mi,
Noise coming from A/C Compressor when A/C is on or when the Defrost is on, Defrost uses A/C compressor.
Noise coming from engine compartment when air conditioner is engaged.
2005 Kia Optima 90,000 mi,
Not fixed yet, looking for new ac compressor.
2004 Kia Optima 164,000 mi,
Clutch froze up,snapped the belt
2010 Kia Optima 79,500 mi,
Rattling noise when ac is on
2006 Kia Optima 99,000 mi,
ac compressor clutch went out......NO AIR!!!!! also have electrical issues and 4wheel drive indicator keeps coming on when NOT IN 4 WHEEL DRIVE
I was using the heater thought it was the blower motor and it eneded up being the a/c compressor clutch
My air compressor went out and the car is only 3 years old. When it first started having problems, I told the dealership where I get my maintenance done at and they said if it does it again to bring it back, but unfortunately for me, it started messing up again when I was outside my warranty, so I am now stuck having to get it fixed on my own., which is not fair. I was going to trade the car in and get a newer Kia, but I'm not now because they should of fixed it while I was still in my warranty instead of telling me to bring it back if it does it again.
2009 Kia Optima 88,900 mi,
Makes loud noises when on, especially when turning on the A/C. Sounded like a tentioner or serpentine belt issue at first, which I had replaced. It was squeeking too. Turns out, that wasn't the main problem and the noise got louder after the work was done at the dealer. Then they said it's probably an A/C compressor clutch. Going back in couple of days to get the full details and get it fixed.
2011 Kia Optima 64,000 mi,
Noise and vibration when ac is on
2001 Kia Optima 24,000 mi,
Blows hot air clutch does not engage
2006 Kia Optima 259,000 mi,
AC Compressor needs replacing.
2010 Kia Optima 74,000 mi,
When turning on a/c fans makes loud whining noise & does not blow air at full speed.
2001 Kia Optima 270,000 mi,
Air conditioner comes on. Sounds like a roaring animal. Vibrates so loud we have to turn up the music. Blast it in fact. Costs more to fix than it is worth. So many problems
2006 Kia Optima 50,000 mi,
Ihave had 2 air conditioner put in my optima I am trying to fine one more.