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Discussion Starter #1
Recently I just had my 2013 JK Sport serviced for a possible EVAP leak due to the check engine light coming on. Went to the shop today...2 hours and $120 later...they tell me no leak was found or loose gas cap...everything was fine. Since last night I've hearing an excessive amount of air blowing out loudly from my radiator near my grill, part of me thought a diagnosis was a fan clutch, but was unsure until I opened my engine coolant reservoir and noticed that it was pretty low....that being said went to the auto parts store to get some antifreeze, guy at the register didn't seem too knowledgeable, but suggested the following in the picture included. So here's what I am wondering....

First....am I using the right type of anti freeze for a 2013 Jeep Wrangler Sport 2 Door? (See picture included)

Second....I'm hoping this solves my excessive air blowing issue from the radiator, but if it doesn't, can anyone who's had an issue similar suggest the possible cause and solution?


Any help would be greatly appreciated. Thank you.
 

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Well - the antifreeze issue is concerning because if you have OAT (organic acid technology), it cannot be mixed with anything other then the MOPAR OAT or will will gel up your cooling system.

If you have HOAT (hybrid organic acid technology), it "can" be mixed with a limited number of aftermarket coolants, but it's very limited.

Jeep switched the coolant type in the 2013 production year - and only a dealer can tell you what your Jeep came with by the VIN.

Personally, if it were me, I'd have the coolant system flushed - ran with just water, then flushed again.

Too many horror stories with coolant mix-ups.

As far as the noise you're hearing - not much I can offer there.
 

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Tried to edit - but here's the TSB about it...



TSB - 07-004-12 REV. A
SUBJECT:
Attention! Release Of New Engine Coolant Organic Additive Technology (OAT)
MODELS:
2013 (D2) Ram Truck (3500 Pick Up)
2013 (DD) Ram Truck (3500 Chassis Cab)
2013 (DJ) Ram Truck (2500 Pick Up)
2013 (DP) Ram Truck (4500 / 5500 Chassis Cab)
2013 (DX) Ram Truck (Mexico)
2013 (DS) Ram Truck (1500)
2013 (FF) Fiat 500
2013 (JC) Journey
2013 (JK) Wrangler
2013 (JS) Avenger/200
2013 (LC) Challenger
2013 (LD) Charger
2013 (LX) 300
2013 (MK) Compass/Patriot
2013 (PF) Dart
2013 (RT) Town & Country/Grand Caravan
2013 (WD) Durango
2013 (WK) Grand Cherokee
2013 (ZD) Viper
NOTE: This bulletins applies to all vehicle listed above for every engine application
EXCEPT the 2013 MK equipped with the 2.2L Diesel engine (sales code ENE)
and the JC vehicle equipped with the 2.0L Diesel engine (sales code EBT).
NUMBER:
07-004-12 REV. A

GROUP:
Cooling

DATE:
November 03, 2012

DISCUSSION:
Chrysler Corporation LLC. has released a new engine coolant for the 2013 model year
vehicles and beyond, for all engine applications except the ones listed in the note above.
This new coolant is an Organic Additive Technology (OAT) (
Fig. 1). OAT coolants have a
service interval of 10 years or 150,000 miles. For heavy duty truck and extreme duty cycle
applications refer to the Service Information or Owner's Manual for proper maintenance
schedules.

CAUTION: Vehicle Damage may occur if dissimilar coolants are mixed!
Coolants of different technologies are not compatible nor interchangeable (OAT, HOAT or
IAT).
Mixing these coolants could result in:
? accelerated corrosion within the engine and cooling systems.
? the coolant having an ammonia smell.
? debris (particles) floating in the coolant.
Further inspection by the technician may find corrosion in the system. This could show up
as aluminum pipes turning black in the coolant system, engine overheat, or leaks in the
coolant system.
NOTE: If OAT (MOPAR P/N 68163848AA Purple) has been Mixed with HOAT (MOPAR
P/N 68048953AB Pink Or Factory Fill HOAT Orange (Fig. 2) or (Fig. 3)) or any
other coolants have been mixed, it will be necessary to flush the cooling system.
 

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Discussion Starter #4
Well - the antifreeze issue is concerning because if you have OAT (organic acid technology), it cannot be mixed with anything other then the MOPAR OAT or will will gel up your cooling system.

If you have HOAT (hybrid organic acid technology), it "can" be mixed with a limited number of aftermarket coolants, but it's very limited.

Jeep switched the coolant type in the 2013 production year - and only a dealer can tell you what your Jeep came with by the VIN.

Personally, if it were me, I'd have the coolant system flushed - ran with just water, then flushed again.

Too many horror stories with coolant mix-ups.

As far as the noise you're hearing - not much I can offer there.

Ok so hypothetically, a coolant system flush...what are we talking $$$ wise....truly this is getting me very frustrated...I don't want to just buy antifreeze and dump it in if it'll damage my engine obviously.
 

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Ok so hypothetically, a coolant system flush...what are we talking $$$ wise....truly this is getting me very frustrated...I don't want to just buy antifreeze and dump it in if it'll damage my engine obviously.
I'm not sure I would say "hypothetically" as much as I would say to do it - especially if you have the OAT type. I can't imagine it would be much - maybe $100 or $150 or so, but, it needs to be done sooner than later - because I imagine you like your cooling/heating system functional...
 

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I don't know what you're hearing so I can't help you with that. The whole JK coolant issue can be a PIA. You can actually use any coolant you want from 07 until the present "if" the factory fill is thoroughly and completely flushed out of the system. Some owners and shops are capable of doing that, some aren't. The safe method is to use "Mopar" HOAT or OAT. 07 until an early 13 build will have HOAT. Later 13's until the present use OAT. I agree with OREDSOX7, check with the dealer to make sure you had an OAT factory fill. If you did, IMO use only Mopar OAT. It also might be a good idea to replace your radiator cap with another Mopar cap. I only use Mopar HOAT in my 10. Do not use All Makes/Models to top off. Only Mopar coolant or distilled water. 50/50 Mopar coolant mix preferred to top off.
 

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Recently I just had my 2013 JK Sport serviced for a possible EVAP leak due to the check engine light coming on. Went to the shop today...2 hours and $120 later...they tell me no leak was found or loose gas cap...everything was fine. Since last night I've hearing an excessive amount of air blowing out loudly from my radiator near my grill, part of me thought a diagnosis was a fan clutch, but was unsure until I opened my engine coolant reservoir and noticed that it was pretty low....that being said went to the auto parts store to get some antifreeze, guy at the register didn't seem too knowledgeable, but suggested the following in the picture included. So here's what I am wondering....

First....am I using the right type of anti freeze for a 2013 Jeep Wrangler Sport 2 Door? (See picture included)

Second....I'm hoping this solves my excessive air blowing issue from the radiator, but if it doesn't, can anyone who's had an issue similar suggest the possible cause and solution?


Any help would be greatly appreciated. Thank you.
Hey TomJeepWrang13,

If you need any help on the dealership end, please give us a shout. We're happy to help!

Kori
Jeep Social Care Specialist
 

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Discussion Starter #8
I don't know what it is...I noticed antifreeze in the reservoir was low, filled it today, still heard the what sounds like a fan from the radiator blowing out air as fast pace...when i say blowing out fast...almost like high-speed jet stream type. I'm using the coolant pictured in my OP. I was told that was what I needed...and since the jeep dealership did a check-up and ruled out any EVAP or Gascap diagnosis....there's only so many possibilities. I'm leaning towards a fan issue...fan clutch...but I'm not a mechanic, and that's probably the only person who's going to know for sure.
 

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JKs use electrical fans, so there is no clutch. Are you just hearing the fan?

Mark

Sent from my SM-G935V using Tapatalk
 

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I don't know what it is...I noticed antifreeze in the reservoir was low, filled it today, still heard the what sounds like a fan from the radiator blowing out air as fast pace...when i say blowing out fast...almost like high-speed jet stream type. I'm using the coolant pictured in my OP. I was told that was what I needed...and since the jeep dealership did a check-up and ruled out any EVAP or Gascap diagnosis....there's only so many possibilities. I'm leaning towards a fan issue...fan clutch...but I'm not a mechanic, and that's probably the only person who's going to know for sure.
That coolant you used does not look to be compatible with the OEM coolant in your Jeep. It lists as an HOAT coolant, but oddly it is only rated for 5 years. If that is the case, that could be a serious problem and I would look into that and resolve it fast. That is probably a bigger problem than the noise you are talking about.
 

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As a wild guess... Check your vacuum pump. As you face your Jeep it will be on the lower right hand side of the radiator. It's a round silver thing with wires and hoses going to it.

You might have a cracked or loose hose or something like that. If there is something leaking there, it should be easy to find.
 

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/\That's a really good idea.

Mark

Sent from my SM-G935V using Tapatalk
 

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Discussion Starter #13
As a wild guess... Check your vacuum pump. As you face your Jeep it will be on the lower right hand side of the radiator. It's a round silver thing with wires and hoses going to it.

You might have a cracked or loose hose or something like that. If there is something leaking there, it should be easy to find.
Vacuum pump looks fine, the coolant I'm using according to what they told me at the store is the correct coolant for a '13 JK, I asked them three times too. I filled up the reservoir yesterday to the MAX line, I check today, it's back down to the MIN line, is that normal? I've included some photos for what it's worth. As I said, air is excessively blowing out from the grill, and the fact that I notice antifreeze/coolant levels that I filled yesterday going from MAX to MIN, makes me question is there's a leak somewhere, but didn't notice any leaking antifreeze under the vehicle.


See links for photos, couldn't upload because they were too large.

https://ibb.co/nc5eZF
https://ibb.co/esozZF
https://ibb.co/csC41v
https://ibb.co/ehrmEF
https://ibb.co/kSwKZF
 

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Vacuum pump looks fine, the coolant I'm using according to what they told me at the store is the correct coolant for a '13 JK, I asked them three times too. I filled up the reservoir yesterday to the MAX line, I check today, it's back down to the MIN line, is that normal? I've included some photos for what it's worth. As I said, air is excessively blowing out from the grill, and the fact that I notice antifreeze/coolant levels that I filled yesterday going from MAX to MIN, makes me question is there's a leak somewhere, but didn't notice any leaking antifreeze under the vehicle.


See links for photos, couldn't upload because they were too large.

https://ibb.co/nc5eZF
https://ibb.co/esozZF
https://ibb.co/csC41v
https://ibb.co/ehrmEF
https://ibb.co/kSwKZF
Regardless of what the auto-parts store told you - the fact that Jeep has a TSB out (which I posted) that says no other anti-freeze should be mixed with OAT - or risk damaging your coolant system - should be enough to cause concern to get your system flushed (twice in this case - since the new stuff made it in your system) to avoid it gel-ing up.

I know this does not solve the original issue - but the one you're about to face is going to be much worse if you do not get it flushed.
 

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Discussion Starter #16
Regardless of what the auto-parts store told you - the fact that Jeep has a TSB out (which I posted) that says no other anti-freeze should be mixed with OAT - or risk damaging your coolant system - should be enough to cause concern to get your system flushed (twice in this case - since the new stuff made it in your system) to avoid it gel-ing up.

I know this does not solve the original issue - but the one you're about to face is going to be much worse if you do not get it flushed.
The local mechanic who I discussed this very concern, and who coincidentally did my brake pad, rotors, battery replacement, and brake fluid flush....assured me that the coolant I used was fine, and even went so far as to say that at his shop he has what is referred to as "universal type coolant" that can used in various automobiles...but then again if I drive tomorrow my blows up, I'll know who was right :lmao:

Aside from that....he noted it could also be a radiator replacement issue, he poured some coolant down the radiator cap and have noticed the loud fan notice ::knock on wood:: since I drove it tonight...but eluding back to the coolant concern, he told it was fine to use, and I trust the mechanic and his reputation.

To answer your questions STL86, been hearing since Sunday, but like I said prior mechanic dumped some coolant into the radiator cap and haven't noticed levels in reservoir decreasing...not to say later I won't notice a depletion. Jeep is running at normal temp...I notice when I start it on the coolant temp gauge is slight leans toward the C, but after a couple minutes needle returns back to the middle. I have heat & AC works fine...a radiator replacement would be my last guess if there was something wrong that needed fixing...otherwise I don't know what it is...and the last 72 hours I've certainly heard every plausible reasoning from others around me here at the possibilities.
 

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The local mechanic who I discussed this very concern, and who coincidentally did my brake pad, rotors, battery replacement, and brake fluid flush....assured me that the coolant I used was fine, and even went so far as to say that at his shop he has what is referred to as "universal type coolant" that can used in various automobiles...but then again if I drive tomorrow my blows up, I'll know who was right :lmao:
You may be laughing now, but when you come back posting here in Feb/March asking why you don't have heat - or heat only blows out of one side of the Jeep - or you have odd temperature fluctuations - don't say we didn't tell you so. When you have an issue where even Jeep dealerships are putting the wrong coolant in Jeeps causing issues and coolant system flushes (I know, I was one of them), the fact that the evidence presented to you regarding mixing of the coolants, yet, you remain confident that your mechanic knows better (yet, Chrysler tells you not to mix anything with OAT coolant except OAT coolant - based on TSB issued). If you don't know Chrysler made the switch, which many independent mechanics don't know (in fact, one of my local dealers didn't even know!!), you will run in to this issue. Did you show him the TSB and get his thoughts? There is not another coolant sold aftermarket that is compatible with Chrysler OAT antifreeze (spec ms-12106).

I went so far as to zip-tie my coolant overflow bottle shut - and wrote a message on it that it is not to be touched and to put OAT in it only as a reminder to myself.

I would like you to read the below post - and look at the photos - this is what will happen when the two types are mixed.

https://wayalife.com/showthread.php/13239-ATTENTION-Know-Your-Jeep-JK-Wrangler-Coolants-and-Save-Your-Engine!

With regards to the noise - are you able to get a video of it? For coolant levels - did you fill when hot and check it when engine was cooled off? As it will fluctuate quite a bit. Best is to fill when cold and check when cold.
 

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The loud air is probably the fan running because the radiator was low. It sounds like he filled the reservoir but not the radiator at first. It sounds like you have coolant escaping somewhere.
 

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Well if it is the fan he can touch the radiator cap and lower hoses to feel how hot they are when is up to temp. Could be as simple as a thermostat not opening all the way keeping the engine from overheating but at or above the 215F mark when the fans turn on.
 
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