Whirring or Whining noise like a turbine... - Kia Forum
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#1 (permalink) Old 05-03-2012, 09:06 AM
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Default Whirring or Whining noise like a turbine...

I have a 2009 2.4L Rondo, recently had noticed a whining noise.. sort of like a turbine sound, above the natural sound of the engine. It occurs ALL the time, and increases in pitch as I depress the accelerator, in gear or not... there is no power loss, no electrical issues, no dimming of headlights.. I took it to my mechanic (not dealer) and used his mechanics stethoscope.. listened to what he thought might be it.. he heard grinding in the tensioner and idle pulleys... I mistakenly told the dealer when I took it these items. and they immediately replaced them (under warranty).. although, the sound is still there.. the service manager insisted its the alternator.. which to mind is a bit odd.. as alternators last a little longer than 2.5 yrs in my experience, and why so loud a noise out of a small bearing in the alternator (which I actually thought was bearingless).. anyhow, its there now, getting alternator replaced.. though I am suspecting it will not fix the problem.. after reviewing the web.. am suspecting AC compressor.. but perhaps someone here can steer me in a better direction..
Thanks...
J.
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#2 (permalink) Old 05-04-2012, 09:51 AM
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My guess is alternator because due to the pulley sizes it is spinning faster than the engine and about the only thing that could make such a noise. Water pump is also in the picture but I dont think thats it at all.

unless perhaps you are hearing the timing chain whirling round and round.

good luck with the situation.
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#3 (permalink) Old 05-05-2012, 10:34 AM
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thanks Tony K, they ordered that now.. though i still have a sneaking suspicion it is the AC compressor clutch causing the sound..
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#4 (permalink) Old 05-28-2012, 12:04 PM
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Smile Fixed

FIXED, AC Compressor Clutch.. apparently adding some shims to it got rid of noise.. funny, I researched this and found this and issue on Rio5 and on Accent, both used same engine, so I told dealer this might be issue.. 1 month ago... they ignored me.. replaced pulleys, alternator .. and finally.. did what I suggested and voila.. fixed.

Thanks Tony for your response regardless.
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#5 (permalink) Old 05-28-2012, 12:20 PM
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Very glad 'THEY' heard it and didnt give up on your car problem, especially since they only seem to respond to check engine lights and there is no code for a noisy AC clutch.

Lets hope the noise stays away forever.

Thanks for the posting the resolution, i was wondering what the outcome was going to be.

Later
Tony
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#6 (permalink) Old 06-11-2012, 08:36 PM
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That is great info to know...We have been have a similar problem in our '09 and each time the dealership conveniently cannot find a problem...although the difference for us seems to be that we seem to only have the problem when the transmission is engaged,especially in gear and with the brakes on (at traffic lights, intersections etc...). As I am due for a service, I will definitely be mentioning this new found info to the morons in my service center. We have had nothing but problems with poor service and excuses.
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#7 (permalink) Old 10-20-2013, 03:34 PM
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What/how did you do to add 'Shims' to the AC clutch/compressor to stop whining noise? chrisnprater@yahoo.com
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#8 (permalink) Old 05-18-2014, 09:50 AM
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Quote:
Originally Posted by chrisnp View Post
What/how did you do to add 'Shims' to the AC clutch/compressor to stop whining noise? chrisnprater@yahoo.com
Bumping because I'd like to konw the answer to this as well. I have an 03 Sorento that started making this whirring noise. Really what I want to know is whether this is a noise it makes because the AC's old, or because it's ready to die.
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