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What is causing this noise?
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=1&t=21778		 Page 1 of 1
Author:  buccilli15 [ Tue Jun 19, 2007 12:37 pm ]
Post subject:  What is causing this noise?
Another issue with my 2007 KJ that only has 3K miles! Seems pretty minor, at least I hope!

I have only found this to happen after the vehicle has been sitting all day/night and when going in reverse. There is an extremely high pitched noise, sounds like its coming from the brakes.....As soon as I go into drive and take off it goes away.....Does this even make sense? Any ideas?

Thanks!
Author:  tjkj2002 [ Tue Jun 19, 2007 1:06 pm ]
Post subject:  Re: What is causing this noise?
buccilli15 wrote:
Another issue with my 2007 KJ that only has 3K miles! Seems pretty minor, at least I hope!

I have only found this to happen after the vehicle has been sitting all day/night and when going in reverse. There is an extremely high pitched noise, sounds like its coming from the brakes.....As soon as I go into drive and take off it goes away.....Does this even make sense? Any ideas?

Thanks!
Is it kinda a buzzing sound? If it is it's the shift solinoids energizing in the tranny,or if it's not it's the brakes sqealing from being cold(normal)
Author:  buccilli15 [ Tue Jun 19, 2007 1:43 pm ]
Post subject: 
It's more of a high pitched, loud, squeel....The brakes being cold, was my first guess, but it doesn't make sense to me. This problem just started a week back and is VERY loud....It literally woke my fiancee up this morning! She was asking about it when I came home for lunch!
Author:  WoodysKJ [ Tue Jun 19, 2007 2:35 pm ]
Post subject: 
My 07 KJ has 1,800+ on it and I have heard nothing like this. I am going to listen closer and watch this thread close.
Author:  JohnnyCash [ Tue Jun 19, 2007 3:04 pm ]
Post subject: 
I've heard a similar noise on my '07.
It was just the brakes though, and it was very loud for a few days.
Embarassingly loud, but it went away.
They make a real ugly sound when wet, like after washing out the tires with a hose.
The last time I washed my Jeep a couple days ago, I didn't get anywhere near the noise I usually get.
I have about 4700 miles now.

Strange that your's only happens in reverse though.
The squeak I had would happen when going through my parking lot real slow, but would go away when I sped up.
Author:  buccilli15 [ Tue Jun 19, 2007 4:24 pm ]
Post subject: 
I'm taking her into the dealer in about an hour.

I'll keep everybody posted.
Author:  USPLibby [ Tue Jun 19, 2007 4:28 pm ]
Post subject: 
If the sound only occurs when you hit the brakes = brakes/surface rust on the rotors/pads

If it happens with or without touching the brakes = ?

When the weather gets cool where I live, by the ocean, my brakes squeal like crazy until I use them for 20-30 feet. The metallic pads must rust a little bit over night in the salt air.
Author:  hallb4 [ Tue Jun 19, 2007 5:15 pm ]
Post subject: 
I have the same symtoms. Only when cold and\or wet.

I figured it was the brakes warming up or drying off.
Author:  Jeepjeepster [ Tue Jun 19, 2007 5:47 pm ]
Post subject: 
Probably normal..
Author:  buccilli15 [ Wed Jun 20, 2007 12:19 pm ]
Post subject: 
Just got off the phone with the dealership.

They confirmed the noise was in fact coming from the brakes. They looked at the pads, rotors, calipers, and E-brake adjustment and couldn't find any issues. However, they stated they have never seen a vehicle act like this.

I'm going to pick it up today and drive it, hoping the noise gradually goes away....If not, will try another dealership.
Author:  sleeve84028 [ Wed Jun 20, 2007 1:26 pm ]
Post subject: 
Strange noises could be from a lack of proper peanut butter levels in the mag light holder area of your Liberty?











I'm truely sorry to hear about the noise - might want a second dealer to check it out for you just in case.
Author:  KJ4ME [ Wed Jun 20, 2007 1:48 pm ]
Post subject:  Re: What is causing this noise?
tjkj2002 wrote:
buccilli15 wrote:
Another issue with my 2007 KJ that only has 3K miles! Seems pretty minor, at least I hope!

I have only found this to happen after the vehicle has been sitting all day/night and when going in reverse. There is an extremely high pitched noise, sounds like its coming from the brakes.....As soon as I go into drive and take off it goes away.....Does this even make sense? Any ideas?

Thanks!
Is it kinda a buzzing sound? If it is it's the shift solinoids energizing in the tranny,or if it's not it's the brakes sqealing from being cold(normal)


so thats what that humming is when i shift from reverse to drive and when the transmission shifts into 1st when coming to a stop!
Author:  Prospect62 [ Wed Jun 20, 2007 8:34 pm ]
Post subject: 
sleeve84028 wrote:
Strange noises could be from a lack of proper peanut butter levels in the mag light holder area of your Liberty?

:-)r
Author:  Dje Ryu [ Thu Jun 21, 2007 1:25 am ]
Post subject:  Re: What is causing this noise?
KJ4ME wrote:
tjkj2002 wrote:
buccilli15 wrote:
Another issue with my 2007 KJ that only has 3K miles! Seems pretty minor, at least I hope!

I have only found this to happen after the vehicle has been sitting all day/night and when going in reverse. There is an extremely high pitched noise, sounds like its coming from the brakes.....As soon as I go into drive and take off it goes away.....Does this even make sense? Any ideas?

Thanks!
Is it kinda a buzzing sound? If it is it's the shift solinoids energizing in the tranny,or if it's not it's the brakes sqealing from being cold(normal)


so thats what that humming is when i shift from reverse to drive and when the transmission shifts into 1st when coming to a stop!


With the command-trac, you REALLY hear it in 4-LO.
Author:  Dje Ryu [ Thu Jun 21, 2007 1:27 am ]
Post subject: 
at least, I HOPE that's what that noise is! :lol:
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