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  #13  
Old 04-26-2011, 12:06 PM
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Re: V6 High Pitched Sound

I have the A/C squeal as well; it's pretty easily replicable; just turn off the stereo and crank the A/C, and it will be there when the compressor cycles. I haven't had it in to the dealer yet, but will have them look at it when I go for my next oil change.

Few seem to have noted this yet, but I think that's more because very few had their WK2s last summer. It was fall/winter when they arrived in larger quantities, and by then most people didn't need to use the A/C.
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Old 04-27-2011, 07:16 PM
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Re: V6 High Pitched Sound

I have this too. I took it in a few weeks ago and they performed the latest TSB relating to the A/C but it is still making the same noise. Haven't had time to take it back to the dealer.


I used to just hear it a couple times a day but now it is doing it every few minutes. I also noticed that it does not seem to do it at highway speed. Or maybe the wind noise just drowns it out.
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Old 04-27-2011, 10:01 PM
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Re: V6 High Pitched Sound

Oh well... it's only 4-5 months a year that I need AC... kind of like a sloshing gas tank... only does it between 5/8 and 7/8 full... a Jeep thing, I know, I am not complaining... after all, they did put 100 million miles on it during the development, they couldn't have missed it... it's all just a figment of our imagination...
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  #16  
Old 04-28-2011, 10:18 AM
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Re: V6 High Pitched Sound

The A/C runs whenever the defroster is on so the noise should be noticeable in the winter as well.
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Old 04-28-2011, 04:12 PM
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Re: V6 High Pitched Sound

I too have this problem and it is very annoying. The first jeep dealership I took my jeep could replicate the problem but said it was too costly for them to fix it without a bulletin from Chrysler. I then took it to a small town jeep dealership who has been trying to fix this issue for several weeks now. They first suspected the blower motor and replaced it, but the noise is still present after. They are now replacing the evaporator plate? Not sure if that is the correct terminology, but something to do with the evaporator.

The service manager drove with me to reproduce the problem and put on headphones that were attached to a microphone, and pinpointed the noise coming from inside the vents.

For me, the noise occurs between 1200 - 1700 RPM and can be reproduced even if the car is in neutral. I'm keeping my fingers crossed that they fix the problem.
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Old 04-29-2011, 08:13 AM
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Re: V6 High Pitched Sound

jonboverland, thanks for the info! I too have noticed that it seems to be restricted to a certain rpm range. For sure, it doesn't happen at idle, but it will occur when I'm parked and rev the engine above 1000 rpm. I had to run the defroster this morning and didn't notice the noise. Please let us know if your dealer is able to fix the problem.
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Old 05-09-2011, 11:59 AM
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Re: V6 High Pitched Sound

...to also jump on the bandwagon, I've noticed what I think it the same noise in my GC as well. Like many on here have said, I hear the noise when the AC is on and while I am traveling at city speeds. I first started hearing it while I was talking on BT and the stereo was muted. Ever since then, it's all I can hear! I did a little troubleshooting while driving and I did not hear it when i shut the AC off with the stereo off and windows up. It definitely seems to be coming from the AC unit. Any word on what the issue is from any of you that have taken it in to the dealer yet? I guess I will just add this to my list of things to have the service dept. check out when I bring it in for the first time.
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Old 05-09-2011, 12:37 PM
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Re: V6 High Pitched Sound

Took mine in on Friday, they said it had to do with the belt and pulley and said they did some adjustments and fixed it.

It isn't fixed. My thinking is that it was fairly cool the second half of last week, so it happened less often. I may have to wait until we get a nice warm stretch so it's happening more often.
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Old 05-09-2011, 06:34 PM
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Re: V6 High Pitched Sound

I haven't heard anything since my GC has been in the service department, but I will post as soon as I hear something. My Overland has been in service for over one month now for this issue and numerous others. They have been fantastic in their diligence, but maybe it's time to call it a day and cut my losses.
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Old 05-11-2011, 07:04 PM
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Re: V6 High Pitched Sound

I just got my Overland and the verdict on the high pitch noise was not good. Basically, the service manager told me that Chrysler informed him that the high pitch noise is a result of a design flaw and that there was nothing more they could do for me. The service department verified this by driving new GCs and Dodge Durangos off the lot and could reproduce the sound. I could tell that he didn't want to share that news with me. I was very pleased with the service department did as they did a fantastic job trouble shooting this problem and speaking with Chrysler directly. Unfortunately, all I can do is wait for a fix or get rid of the car. I was advised to complain to Chrysler directly: 1-800-992-1997

I left the service department and walked over to the sales area where I spoke with the sales GM about the problem and my situation. At first, he didn't have an idea of the situation and offered $29,000 for my car as a trade-in. After much gentlemenly conversation, I think he understood my frustration and agreed to start the lemon law procedure. He's supposed to call me in the morning to see what more they can do.

It looks we are stuck with the high-pitch noise for now unless enough people complain.
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  #23  
Old 05-11-2011, 09:17 PM
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Re: V6 High Pitched Sound

That sucks. I'm still going to have my dealer run it down to the conclusion though. If it's a known design flaw, then it means they know why it does it and can likely eventually offer a TSB for a fix. I want this to be extensively documented to show that the problem has existed already, in case the fix doesn't come until after the warranty is done.
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Old 05-12-2011, 08:45 AM
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Re: V6 High Pitched Sound

Brian
had same problem took mine to a dealer that I did not buy mine from. It was only 5 mins from home and they gave me some excuse. So I took it back to Hillview Motors where I bought it and they fixed it right there on spot.
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