Wrangler TJ Coolant Boiling

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caprihorse
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Your cooling system is overheating and your temperature gauge is not working. Forget caps and Land Rover tips, just remove the mud from your system and eventually replace water pump and the radiator, as it is already maybe 50% stuck, if not more.
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Agalon;31067 wrote: And for the system itself i am planning to change all cooling system. I will check with Mishimoto distributor and get a quotation for the whole system with aluminium radiator, thermostat, hoses, reservoir, electric fan addition and gearbox cooler..
I would really like to do that to my Cherokee as well , but I know this will cost me a fortune ( 6 to 8 k ) . I would have paid that money if I was building a car to participate in Rally championship but not for our ordinary off-roading activity .

As the guys said , just flush the system and get new original cap & thermos . you can check with Omar at Almost service center for the transmission cooling system & electric auxiliary fan ( already did mine there ) .
What goes around , comes around .
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Dear bro
I'd second all brothers well said especially Capri's note, however once you noted the boiling coolant you don't need to switch off the engine but to make sure first that you have enough coolant in radiator with due safety procedures then to switch on the A/C on max heating mode this will drastically reduce the temperature and not to forget the high possibility that your heat indicator is out of operation position.
I do recommend to flush the radiator by specialist check the radiator's PVC top for any leak and to replace the cap .
Wish you all the best bro
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Agalon
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Adnan;31106 wrote:Dear bro
I'd second all brothers well said especially Capri's note, however once you noted the boiling coolant you don't need to switch off the engine but to make sure first that you have enough coolant in radiator with due safety procedures then to switch on the A/C on max heating mode this will drastically reduce the temperature and not to forget the high possibility that your heat indicator is out of operation position.
I do recommend to flush the radiator by specialist check the radiator's PVC top for any leak and to replace the cap .
Wish you all the best bro
Hi Adnan,

I turned down the engine assuming that there is not enough coolant in the system and when the engine cooled down i opened the radiator and it was empty. Also the remaining very less amount of coolant in the reservoir was boiled and gone. I tested the indicators with the on-off 3 times method and all instruments in the panel were working properly and no obd codes were there.

Meanwhile as i mentioned the car is in Jeepers Dubai. I just talked with them. As per their report they have flushed the system, although they did not observe any problem, changed the radiator cap (he said 3 times), changed the water pump, changed the thermostat, checked the timing belt. No leak from any point. Also there is no problem with the head gaskets on the engine. There is no overheating or boiling observed during their tests. Only thing remaining they have doubt is the engine might have some problem somewhere a crack or whatsoever so they will replace it with another engine which they have as a spare and they are sure it is ok (without any charge by the way). Let's see what will happen.

Thanks for your good wishes, and everybody for the all valuable feedbacks...
AGALON
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caprihorse
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At first pls check this -http://www.almost4x4.com/vb/showthread. ... highlight=

Cooling system contains about 8L of coolant. When you are saying that there is nothing, so where it is?
Did you look at exhaust, if there is not dropping water?
I believe that you have head gasket problem. ..
Where is the logic to say that everything is OK and propose to change engine?
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Agalon
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caprihorse;31116 wrote:At first pls check this -http://www.almost4x4.com/vb/showthread. ... highlight=

Cooling system contains about 8L of coolant. When you are saying that there is nothing, so where it is?
Did you look at exhaust, if there is not dropping water?
I believe that you have head gasket problem. ..
Where is the logic to say that everything is OK and propose to change engine?
Hi Chief,

I just tried to mention that the reservoir and the radiator was empty. As far as i remember i put in 7L of coolant in total to the radiator and the reservoir that time (mistakenly first into the reservoir till the full indication, then the radiator and it was not full after this.)

The exhaust did not have any water when we checked at the point. Then from time to time i am checking if there is any leak under the engine or any drop from the exhaust.

Meanwhile, i just came back home from the workshop i mentioned, had a discussion with the technicians and the owner, which i don't want to share here all the details openly but just i told them not to touch the car anymore, i will take it tomorrow. I am really really upset with what i experienced.

I just can hope for the time being that there is no serious issue with the engine so i can get the rest fixed if it is the gasket or any problem in the coolant system, radiator cap etc.

Edit : Thanks for the link chief... I should have checked for it in the forum before i take action... Learning anyway :)
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Just another question. After a pressure test to the cooling system, if it passes with no pressure leak, can i take it as the head gaskets are ok?
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Hi Again... If anybody is interested in want to share what's goin' on with the situation...

I took the car to western motors (Jeep Abu Dhabi) in Musaffah as it is very close to where i am working. They ran a diagnosis in the system. As a result, they said there is no leak in the system but they need to change the thermostat, the radiator and water pump (as chief mentioned before) and the cooling fan as it is not working properly (as strawb mentioned before). One interesting thing is the water pump is not one for wrangler that it is modified to fit?! (I don't know why and how). Although there is no problem in the engine as what they say, they will check overall if anything is replaced with a low quality or wrong part. If it is ok they will proceed with the cooling system.

Although this is kinda embarrassing to have a bad experience like this with a car newly bought, i just wanted to share it here to let people know one thing... My advice, take your time, let the car to be checked by a trusted garage if possible (like Almost Garage), check the forums here, ask to experienced people in the club and never think about getting close to the door of Jeepers in Dubai if you want to buy a car or need a maintenance or service... Never think of it... Never...
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Well, let me input 5 cents,
You said previously that Jeeprs replaced already these parts... does that mean you will replace "again" or they actually lied to you?
It seems that this new garage is replacing ALL major cooling parts... not sure that they really know the real issue cause, but since you probably dont wanna waste more time and you were initially ready to go for it, just do it, but take your time to personally buy the original parts and observe that they really replace what you bring them. It is a 2-3 hrs job total.
And just for my curiosity, when you say "boil" - do you mean that it is really boiling (at 260F)? Or just bubbling?
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Agalon
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Black_Shrek;31331 wrote:Well, let me input 5 cents,
You said previously that Jeeprs replaced already these parts... does that mean you will replace "again" or they actually lied to you?
It seems that this new garage is replacing ALL major cooling parts... not sure that they really know the real issue cause, but since you probably dont wanna waste more time and you were initially ready to go for it, just do it, but take your time to personally buy the original parts and observe that they really replace what you bring them. It is a 2-3 hrs job total.
And just for my curiosity, when you say "boil" - do you mean that it is really boiling (at 260F)? Or just bubbling?
Hi Black Shrek,

This new garage is official dealer of Jeep in Abu Dhabi. Actually as per what the dealer said, yes these parts are changed (previously also the jeepers guy said they were changed already before i buy so nothing changed after i brought back for the problem. They said they checked them again which, i have doubt on it too). They just said that there is too much dirt (or rust) coming from the radiator during flush and the water pump is not genuine and modified to assemble to the engine. This means yes they were replaced in a way :) For the fan they said it is not working proper and also causing the engine to vibrate (he mentioned a couple of other stuff for the vibration which is not a big deal). I was thinking to buy the parts and change myself but as i am tired too much, for this time, i want to have it done by them and take their warranty on it so if something again happens at least i can take it to them and let it be checked.

And yes, the coolant was actually boiling.
AGALON
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