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Old 11-20-2012, 10:19 PM   #91
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Hello,
I have been lurking on the forum for a long time but wasn't able to post (never could get the problem solved) so I created a new account tonight.
This is my first post, I bought a 2013 Rubicon on Oct. 15. Within a week I heard the water behind the dash sound. It happened here and there but then became more frequent as the weather became colder. I have had my Jeep into the dealer twice to solve this issue....which seems to be gone now. The dealership said they have seen over a dozen Jeeps with this issue. As it was explained to me, they put the front end of the Jeep on a lift and raised it at a 45 degree angle. They let it run for an hour and 45 minutes (I set the timer when I dropped the Jeep off) the first time and 45 minutes the second time, the tech said the procedure calls for the cap to be removed when the engine is hot so coolant went everywhere causing a burning syrupy smell for the last week. The smells seems to be fading and the heat is now constant on both sides (between the first and second visit the heat cooled down at stops on the drivers side).
I am glad the sound is gone but it was not fun having to take my new Jeep in twice before I had it a month.

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Old 11-21-2012, 01:54 AM   #92
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Originally Posted by ColoRubicon View Post
Hello,
I have been lurking on the forum for a long time but wasn't able to post (never could get the problem solved) so I created a new account tonight.
This is my first post, I bought a 2013 Rubicon on Oct. 15. Within a week I heard the water behind the dash sound. It happened here and there but then became more frequent as the weather became colder. I have had my Jeep into the dealer twice to solve this issue....which seems to be gone now. The dealership said they have seen over a dozen Jeeps with this issue. As it was explained to me, they put the front end of the Jeep on a lift and raised it at a 45 degree angle. They let it run for an hour and 45 minutes (I set the timer when I dropped the Jeep off) the first time and 45 minutes the second time, the tech said the procedure calls for the cap to be removed when the engine is hot so coolant went everywhere causing a burning syrupy smell for the last week. The smells seems to be fading and the heat is now constant on both sides (between the first and second visit the heat cooled down at stops on the drivers side).
I am glad the sound is gone but it was not fun having to take my new Jeep in twice before I had it a month.
That's what they did to mine too. I wouldn't be surprised if you have to have it burped once more either, mine did ok for a little while and then a hidden air bubble worked its way loose causing a gurgle sounds again. I bounced the Jeep up and down in the driveway and squeezed the hoses and got the bubble worked loose on my own and it went away and has been fine now. Hopefully it's over that now.

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Old 11-21-2012, 06:10 AM   #93
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Taking mine in Friday for service. Clearly air in the system. Have burped it several times and it keeps coming back. No leaks, coolant is at the proper level.
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Old 11-21-2012, 08:00 AM   #94
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Watching, mine is going in also.
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Old 11-21-2012, 08:05 AM   #95
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I have noticed that the noise went away for me, I picked up my jeep on Oct. 6th.
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Old 11-21-2012, 08:09 AM   #96
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This is a myth.
1) As long as the engine is running the water pump is circulating coolant thru the system including the heater core.
2) Running the fan on high speed has no effect on whether air is trapped the cooling system.
You do it to check the temp of the heater
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Old 11-21-2012, 09:13 AM   #97
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I have had the same issue on mine pretty much since I bought it (june 2012). I noticed that the noise happens only when cold and it didn't bother me much so I didn't do anything about it.
Anyway, long story short...I now have the heating issue and it is at the dealer for the second time now (first time they replaced an actuator despite me telling them about the heater core and sloshing issue). this time they said it was fine until I made the manager sit in it for 20minutes with the cold air blowing on him.

now they are replacing the heater core (supposedly) and we'll see, but kinda wished I at least tried burping it on my own first.
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Old 11-21-2012, 09:15 AM   #98
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So coolant changes are going to be a royal pain in the ass on these, huh? My Infiniti is the same way. I can remember it once took me 4 hours just to get my heat back.
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Old 11-21-2012, 09:39 AM   #99
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So coolant changes are going to be a royal pain in the ass on these, huh? My Infiniti is the same way. I can remember it once took me 4 hours just to get my heat back.
fortunately it has a 150,000 mile or 10 year change interval, most people won't be changing it more then a couple of times at most.
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Old 11-21-2012, 09:44 AM   #100
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fortunately it has a 150,000 mile or 10 year change interval, most people won't be changing it more then a couple of times at most.
Unfortunately for me, I'm not most people.

Jeep's service intervals are something that I can't see myself listening to. For instance, my 2012 hasn't told me even once to change the oil yet. It's been changed 3 times so far.
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Old 11-21-2012, 09:57 AM   #101
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Unfortunately for me, I'm not most people.

Jeep's service intervals are something that I can't see myself listening to. For instance, my 2012 hasn't told me even once to change the oil yet. It's been changed 3 times so far.
I still would not worry about it. I had to burp mine and it took one time and about 10 minutes of my time. It was no different than any other vehicle I have done. (been driving since 1971 and do all my own maintance, so have done more than a couple lol) I only have 3000 miles on my month and half old 2013 jku but I have also changed oil twice already but the next oil change I am going to wait until at least 5000 miles.
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Old 11-21-2012, 10:09 AM   #102
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Quote:
Originally Posted by ColoRubicon View Post
Hello,
I have been lurking on the forum for a long time but wasn't able to post (never could get the problem solved) so I created a new account tonight.
This is my first post, I bought a 2013 Rubicon on Oct. 15. Within a week I heard the water behind the dash sound. It happened here and there but then became more frequent as the weather became colder. I have had my Jeep into the dealer twice to solve this issue....which seems to be gone now. The dealership said they have seen over a dozen Jeeps with this issue. As it was explained to me, they put the front end of the Jeep on a lift and raised it at a 45 degree angle. They let it run for an hour and 45 minutes (I set the timer when I dropped the Jeep off) the first time and 45 minutes the second time, the tech said the procedure calls for the cap to be removed when the engine is hot so coolant went everywhere causing a burning syrupy smell for the last week. The smells seems to be fading and the heat is now constant on both sides (between the first and second visit the heat cooled down at stops on the drivers side).
I am glad the sound is gone but it was not fun having to take my new Jeep in twice before I had it a month.
Geez. I guess it was too much to expect the tech to hose down the engine compartment with clean water when he was done.

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So coolant changes are going to be a royal pain in the ass on these, huh? My Infiniti is the same way. I can remember it once took me 4 hours just to get my heat back.
Not really. Remove lower radiator hose from engine and drain old coolant.
Refill radiator and leave cap off. Start engine and allow it to warm up. Once it reaches operating temp, top off radiator. Once engine is cool, burp if necessary.
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Old 11-21-2012, 11:30 AM   #103
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They told me they hosed down the engine however "that stuff gets everywhere" so it will take a little while to burn off. I had to take it back, apparently they opened the hood, rested it on the roof while they did this procedure and didn't use anything to protect the paint. There was a white line on the hood on the hood and the roof, in the paint when they were done so they had to buff it out. Not overly thrilled right now, really hoping the issue is gone, although the overflow tank is always an inch or so over max. I mentioned this to them, they said it is still working itself out and should be fine....we'll see.
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Old 11-21-2012, 08:07 PM   #104
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My 2013 Is making the sloshing sound. We picked it up in early November. I thought it was just air moving around but my wife said it sounde like water. I turned everything off and now I can hear it too. I'll get an appointment next week. First problem.Gurr!
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Old 11-21-2012, 08:14 PM   #105
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Originally Posted by ColoRubicon View Post
They told me they hosed down the engine however "that stuff gets everywhere" so it will take a little while to burn off. I had to take it back, apparently they opened the hood, rested it on the roof while they did this procedure and didn't use anything to protect the paint. There was a white line on the hood on the hood and the roof, in the paint when they were done so they had to buff it out. Not overly thrilled right now, really hoping the issue is gone, although the overflow tank is always an inch or so over max. I mentioned this to them, they said it is still working itself out and should be fine....we'll see.
Since you are in CO, you should have hit me up. I could have burped the system for free and wouldn't have made a mess.
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Old 11-21-2012, 08:27 PM   #106
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Since you are in CO, you should have hit me up. I could have burped the system for free and wouldn't have made a mess.
Now that I know.... Hopefully the problem is solved...crossing fingers and toes!
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Old 11-21-2012, 09:55 PM   #107
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My wife's 2012 GC is doing the same thing.

I wish I had seen his thread earlier... She has an appointment Friday.
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Old 11-21-2012, 11:00 PM   #108
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Now that I know.... Hopefully the problem is solved...crossing fingers and toes!
Hey Linda,
What dealership did you take your Rub to?
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Old 11-22-2012, 03:54 AM   #109
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So many different opinions? So whos right?

Take it in or just leave?
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Old 11-22-2012, 12:58 PM   #110
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I started the engine so it was cold. I then removed the radiator cap and there was nothing there. Either with the cap on or off I could squeeze the top hose but there was no resistance It would kinda of breath in and out. I checked the overflow container and it was over the recommended level by about an inch and a half- maybe two inches. Should I use a turkey baster to take fluid from then overflow bottle and put it in the radiator? Can someone provide clear directions as to what to try before I go to the dealer? Obviously, I am not very mechanically inclined so don' t laugh at the dumb one. That is what forums are for- helping new guys. Thanks
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Old 11-22-2012, 12:59 PM   #111
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P.S. I won' t use the turkey baster today as the wife has laid claim to it.
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Old 11-22-2012, 02:51 PM   #112
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I started the engine so it was cold. I then removed the radiator cap and there was nothing there. Either with the cap on or off I could squeeze the top hose but there was no resistance It would kinda of breath in and out. I checked the overflow container and it was over the recommended level by about an inch and a half- maybe two inches. Should I use a turkey baster to take fluid from then overflow bottle and put it in the radiator? Can someone provide clear directions as to what to try before I go to the dealer? Obviously, I am not very mechanically inclined so don' t laugh at the dumb one. That is what forums are for- helping new guys. Thanks
Unhook the overflow hose from the radiator neck and slide the overflow reservoir up until the tabs clear the slots and remove it. Dump out enough coolant so the level is at the mark.

Reinstall overflow reservoir and connect hose. Add coolant to radiator until it reaches the bottom of the filler neck. Squeeze the upper radiator hose to work the air out, you will see bubbles. Add more coolant as necessary. Continue squeezing the upper hose until you can't get any more air out. Top off radiator and install cap.

BTW: With the engine cold and off, there is no pressure in the system. Even if the system is full it is still fairly easy to squeeze the upper hose.
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Old 11-22-2012, 06:51 PM   #113
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Thank you, that exactly what I wanted to know.
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Old 11-22-2012, 06:57 PM   #114
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Hey Linda,
What dealership did you take your Rub to?
GO Southwest in Littleton
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Old 11-24-2012, 06:26 PM   #115
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GO Southwest in Littleton
Hmmm I got mine at Colorado jeep. I hope they have some knowledge of the issue.
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Old 11-26-2012, 03:23 PM   #116
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Here's the scoop I got..which was not satisfying

I have 1,900 miles on my '13 Wrangler Sport and have had the water sound issue for the last 500 to 750 miles. I brought it to the dealer almost a week ago (it took longer due to Thanksgiving) and they "bled the system" three times with no impact. Today, we received word back from a Jeep field engineer that this is a known, nationwide problem and that they have no idea how to fix it. If you believe this, then I guess we'll all have to wait until they come up with a solution. Perhaps we all get recall notices as some point. I'm going to be very persistent on this matter and will report back what I hear. I'll also be interested to see if any of you hear the same response from Jeep. So there it is...take it or leave it.
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Old 11-27-2012, 12:04 PM   #117
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I believe I have this issue as well on my 2013 JKR with only 700 miles but I noticed the water sound from day one
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Old 11-27-2012, 01:56 PM   #118
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What I was told

I probably had it from day one, too, but when I first bought the Jeep I had the Freedom Top off and the radio up. There is a good chance I missed it under those conditions. Anyway, I was told there would not be a recall unless it was a safety issue. Instead, once a solution is found we will be notified upon request or at a service appointment. There is technical jargon for this process, but I was so frustrated by the whole thing that I was barely paying attention when the service manager told me. At the end of the day, it does not appear that anything on the vehicle is currently failing, but that this noise is an annoyance. I have a message in to the service foreman at the dealership to determine exactly what the Jeep engineer told him. I don't expect to get much satisfaction out of the exercise, but maybe I'll find out somthing more that I can share with the group before folks go out and have their JKs torn up, heater cores replaced, etc.
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Old 11-27-2012, 02:05 PM   #119
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^^^ Thank you so much for the information!
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Old 11-27-2012, 02:44 PM   #120
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What I heard

Ok, so I just got off the phone with the service shop foreman who spoke directly to the Jeep engineer in Detroit. As suspected, there was not much more info to share with me, unfortunately. What he did say was that it was a "known issue" and they were working on a solution. The issue appears to be that there is "an air pocket at the top of the heater core" that cannot be removed by traditional means...ie bleeding the system (with the front of the vehicle elevated). Jeep does not believe there is a serious mechanical issue or that the heater core is failing (but, they can't be 100% sure at this point), but rather that they/we are dealing with a nuisance issue. I believe this reaffirms the thought I expressed on a previous post, which I guess is good (???), but still frustrating. Consequently, my dealership told me when I brought the vehicle in that they had never seen this issue before; apparently, someone else contacted them today with the same issue and told that customer to hold tight until a solution is found...which they believe will be relatively soon based on past experience. I'm not a big fan of dealership service, but I am pleased in this case that they did not tear my JK apart trying to find something they were not going to be able to fix.

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