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Old 02-25-2013, 04:44 PM   #1
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2013 Coolant Issues

I have had the water rushing sound in my dash from day one, so I decided today to bleed the air out of the system. I let it burp until the thermostat opened and after it was done I added a little coolant to top off the radiator. I used coolant that I bought from Chrysler for my old grand cherokee that I guess was HOAT. Now upon reading I see my new wrangler can only take a new OAT 2013 coolant. I only added maybe a cup to the system but now what do I do? I don't want to take it to the dealer to flush it because will this somehow void my warranty? I don't see why they have to switch things around so much

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Old 02-25-2013, 06:19 PM   #2
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Forget about it unless you can see it in the overflow tank. Then I would just empty the reservoir and fill correctly if worried about it

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Old 02-25-2013, 06:48 PM   #3
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The tank as of now is still red, but when i added it I added it right to the radiator because it was low. I just dont know if it would be worth a full flush and refill with the 2013 coolant even though I only added a cup or so because thats what I lost while the cap was off burping. I just am very worried now that the coolant is going to hurt the aluminum block and heads, and that the dealer wont warrenty it because of the coolant being different. Also will telling them this and asking them to flush it be put in a record somewhere so if I do have problems they wont be covered?
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Old 02-25-2013, 08:07 PM   #4

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I would not worry about it. One cup diluted in a couple of gallons or whatever the capacity is. I would not go to the trouble of a flush. At least you added coolent to coolent. It's not like water to oil or gas to diesel.
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Old 02-25-2013, 09:04 PM   #5
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Alright I guess I feel a little better. I don't mind spending the money for a flush but don't want the dealer to know about it really. Plus who knows If they would even fill it with the right stuff in the first place. I just know what the sludge looks like that it makes and don't really want that to form in my new jeep. I wouldn't have filled it but I noticed it did pour a bit out, and I had intermittent heat so I knew it needed a little.
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Old 02-25-2013, 09:07 PM   #6
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No worries.
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Old 02-25-2013, 09:22 PM   #7
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Awesome. I'm still a little nervous though, I'll check it every couple weeks and make sure its still red lol. I was low enough to where I didn't have heat unless I was on the throttle
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Old 02-25-2013, 09:22 PM   #8
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We'll, did it work? Is the water sound gone?
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Old 02-25-2013, 09:37 PM   #9
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For the most part yes. I got one little trickle when I started it a few hours ago but that was it
Its a little early to tell, it only did it on cold starts
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Old 02-25-2013, 11:00 PM   #10
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They are compatible!
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Old 02-25-2013, 11:21 PM   #11
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That would be awesome if they were but almost all the digging I have done has lead me to beleive that you cannot mix HOAT based coolant with a OAT based coolant. It will create a sludge thats almost impossibal to get out. I see my resevoir is a little low tonight still so I will go buy some of the right stuff from the dealer and top it off with it. Just to delute the wrong stuff that I put in even more.
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Old 02-25-2013, 11:43 PM   #12
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Slight hijack but I had my 2013 JKR's water pump replaced. Now I have the water sound described above. Is this a "bad thing"? Take it back to the dealer?

I would assume it means there's air in the system?
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Old 02-26-2013, 01:09 AM   #13
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^ Take it back and have the dealer fix it. There's probably air in the system and it could also be low on fluid.

OP - Take it in to the dealer and tell them you bled it for air and need them to top it off with fluid. It's covered under warranty, don't buy fluid when you don't have to. Later on if something happens, you won't know if the fluid you put in caused it or if the fluid they put in did - ignorance can be bliss.
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Old 02-26-2013, 08:05 AM   #14
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I had the water sound and burped the system and then my overflow tank was almost empty.
Since the nearest dealer is over 100 miles away, I didn't want to take it to the dealer, but a friend who transports cars for another dealer picked up a gallon of coolant for me. It was nearly 50 bucks. I filled up the overflow tank and it hasn't moved since, and no more water sound


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