Busted coolant hose (little one under alternator)

the bras is a clever fix, idk if i would do it, id prob go with a silicon hose but im sure someone somewhere could make a custom machined Al one or something which Al anodized would prob be the best bet for a long term solution
 
hardhat said:
View attachment 47846View attachment 47845View attachment 47847

First real problem I've had 2021 with 52k miles. No warning. Running fine. All of a sudden steam from passenger side and coolant smell. Was just pulling into church. Coolant everywhere under hood. Figured out where leak was by pouring distilled water into coolant recovery tank. Never overheated but would have of course. Hose was a PITA to replace. Got one at oreillys that was similar and cut it down to size. Don't know why they made the hose like this. It hooks to a smaller hose through a reducer. Had to remove 3 clamps to get thing apart. Smaller hose was easier to remove and not much space to work. Prob easier if I took the belt off, but all it all less than an hour job. Just had to find right pliers to get down in there to get clamps off. Not really that bad.

Filled back up with distilled water. Will get proper coolant tomorrow and drain some out and top it back off to get close to 50/50.

Oh and my daughter backed into the light pole at church when we went up there to get jeep and I had to tell the story of how I backed by dads jeep into a tree after I washed it when I was a kid. ........

All good now though. Truck and lightpole fixed. Busy day :)
Click to expand...
That hose 68481171AC is on back order can’t get one even if you need one waiting for one to come in
 
Earl 392 said:
That hose 68481171AC is on back order can’t get one even if you need one waiting for one to come in
Click to expand...
8
Earl 392 said:
That hose 68481171AC is on back order can’t get one even if you need one waiting for one to come in
Click to expand...
hardhat said:
View attachment 47846View attachment 47845View attachment 47847

First real problem I've had 2021 with 52k miles. No warning. Running fine. All of a sudden steam from passenger side and coolant smell. Was just pulling into church. Coolant everywhere under hood. Figured out where leak was by pouring distilled water into coolant recovery tank. Never overheated but would have of course. Hose was a PITA to replace. Got one at oreillys that was similar and cut it down to size. Don't know why they made the hose like this. It hooks to a smaller hose through a reducer. Had to remove 3 clamps to get thing apart. Smaller hose was easier to remove and not much space to work. Prob easier if I took the belt off, but all it all less than an hour job. Just had to find right pliers to get down in there to get clamps off. Not really that bad.

Filled back up with distilled water. Will get proper coolant tomorrow and drain some out and top it back off to get close to 50/50.

Oh and my daughter backed into the light pole at church when we went up there to get jeep and I had to tell the story of how I backed by dads jeep into a tree after I washed it when I was a kid. ........

All good now though. Truck and lightpole fixed. Busy day :)
Click to expand...
Ordered the part from the dealer got it in a few days. I would hate to change it out on the trail. Pain In good conditions. Took a small bath in reddish orange coolant. New coolant is blueberry color new part number compatible with what came in the Jeep in 23 but a different part number.old hose in the Jeep as a replacement on the trail if needed. 12350 miles .take no chance
 
These seem to be such a problem with the older 392's, the 24/25's got the newer re-enforced upgrades. I am not surprised they are on back order at most dealerships.

As many have discovered the older versions are ticking time bombs and Stellantis really should have been replaced them to the newer versions via a TSB's but that would cost money so that's wishful speakingl

If any aftermarket manufactures come out with a stainless braid molded reinforced part I will be first in line to buy one.
 
I bought one of these hoses a couple of weeks ago. I'm thinking about changing it before it blows. Lots of questions. How are you guys doing it? which end do you pull first the top or bottom? I assume it pretty much drains most of the coolant, any idea how much that is?
 
Here's a suggestion. Get yourself a couple of 1/2 " rubber caps from an auto parts store, remove the top first, put the cap in place, do the same thing on the bottom. Then when you have everything ready to install the new hose, bottom first then top.

Bottom line its going to be messy and plan on having to add fluid back in. And don't forget to burp the system to make sure you have all the air bubbles out of the system.

Perhaps someone who has actually gone thru the motion can comment. Bottom line I would rather accomplish this in my garage then out on the road in an emergency!
 
dgerb said:
I bought one of these hoses a couple of weeks ago. I'm thinking about changing it before it blows. Lots of questions. How are you guys doing it? which end do you pull first the top or bottom? I assume it pretty much drains most of the coolant, any idea how much that is?
Click to expand...
I loosened the coolant tank fill cap, opened the drain valve on the radiator and let as much run out as would, catching it in a clean container to put it back in. Probably got 1 or 1-1/2 gallons out. Upper hose was fine, but it still made a mess when I pulled the lower hose, running a bunch down my sleeve and making a nice puddle to lay in.

Doing it over again, I like the suggestion of @OldVetteGuy and would probably try that route. Its going to be a mess either way. The disadvantage of draining it from the radiator is that you do get a lot of coolant out and you have to get it all back in which isn't that easy. I lost a maybe 1-1/2 quarts from stuff coming out the bottom of the oil cooler house and some slobbering from the radiator petcock.

You will likely need a hose clamp removal tool for the bottom hose clamp, it is difficult to access (See post #48 above). Also a good idea to have an extra gallon of coolant to top it back up.

Here's the fill & bleed procedure from the factory manual (fwiw):
1763696784126.webp

I followed the procedure but it made me pretty uncomfortable as you couldn't get much coolant back in at the start, meaning that there was probably poor cooling in parts of the engine due to air pockets. I released the upper radiator hose to let air out which helped some.

The fan never came on and I'm not sure the thermostat opened either due to the poor circulation. Doing it over again I think the approach from @OldVetteGuy would keep more coolant in the engine and result in a safer bleed procedure.

I'd also do a shorter warm up, just until the coolant was expanding to fill the reservoir. Then followed by a cool down, maybe repeating a couple times until it is stable.

LF
 
Leftfield said:
I loosened the coolant tank fill cap, opened the drain valve on the radiator and let as much run out as would, catching it in a clean container to put it back in. Probably got 1 or 1-1/2 gallons out. Upper hose was fine, but it still made a mess when I pulled the lower hose, running a bunch down my sleeve and making a nice puddle to lay in.

Doing it over again, I like the suggestion of @OldVetteGuy and would probably try that route. Its going to be a mess either way. The disadvantage of draining it from the radiator is that you do get a lot of coolant out and you have to get it all back in which isn't that easy. I lost a maybe 1-1/2 quarts from stuff coming out the bottom of the oil cooler house and some slobbering from the radiator petcock.

You will likely need a hose clamp removal tool for the bottom hose clamp, it is difficult to access (See post #48 above). Also a good idea to have an extra gallon of coolant to top it back up.

Here's the fill & bleed procedure from the factory manual (fwiw):
View attachment 51290
I followed the procedure but it made me pretty uncomfortable as you couldn't get much coolant back in at the start, meaning that there was probably poor cooling in parts of the engine due to air pockets. I released the upper radiator hose to let air out which helped some.

The fan never came on and I'm not sure the thermostat opened either due to the poor circulation. Doing it over again I think the approach from @OldVetteGuy would keep more coolant in the engine and result in a safer bleed procedure.

I'd also do a shorter warm up, just until the coolant was expanding to fill the reservoir. Then followed by a cool down, maybe repeating a couple times until it is stable.

LF
Click to expand...
Maybe I'm getting old, I normally don't mind working under the Jeep, but this job has me thinking it might be better to take it to the dealer and have them do it.
 
OldVetteGuy said:
Here's a suggestion. Get yourself a couple of 1/2 " rubber caps from an auto parts store, remove the top first, put the cap in place, do the same thing on the bottom. Then when you have everything ready to install the new hose, bottom first then top.

Bottom line its going to be messy and plan on having to add fluid back in. And don't forget to burp the system to make sure you have all the air bubbles out of the system.

Perhaps someone who has actually gone thru the motion can comment. Bottom line I would rather accomplish this in my garage then out on the road in an emergency!
Click to expand...
Yes great idea I did the easy top one first tool not so great. Angled pliers worked best knocked my top plug into the abyss . No coolant came out when I removed the top of the hose. The bottom is smaller but more difficult to get to and the clamp tabs on mine were on top of the hose thanks Jeep. (If maybe if I had plugged the top coolant tube) coolant would not have gushed out . I miss judged my plug size for lower hose outlet .I was able to slip new hose on and stop the shower and foul language. As stated above down the arm in the mouth and yes .I collected 1 1/2 quarts . New hose has clamp tabs on the bottom. I added 16 oz in reservoir started the Jeep let it get to about 125 degrees shut it off. Cleaned up the garage for a few minutes .Jeep pulled in the 16 oz so I added 16 more this time I ran the Jeep to 150 degrees shut it down all this with cap off reservoir. Again the Jeep pulled it in . Added the last 16 oz put the cap on and wet for a drive 7 minutes or so parked and popped the hood let it sit while mopping the garage floor all levels good no leaks. Old hose with regular hose clamps in a plastic bag in the Jeep..
Just a note the new hose looks and feels exactly like the old one. I don’t think there’s any difference. Hopefully it’s that 90 that’s causing the problems cause there are a lot of hoses in this Jeep. Just a note if you’re prepared better than I was and cap the top and slip one on the bottom quick enough you might not lose much coolant.
 
Another thought, I wonder if the applying a few wraps of the self-sealing silicon tape around the upper hose, before it fails, would work.
 
The brass idea is cleaver but I would not do it, ever hear of galvanic corrosion? Those who have owned boats know all about this.
It happen when aluminum and brass are used with water/antifreeze (which is an electrolyte).

Though it might take some time before a failure occurs, the brass acts as an anode while the aluminum acts as a cathode. The best fix would be a good quality silicon hose (like the green ones used in public service vehicles covered with a stainless jacket. These will last in the harshest environment and would last the life of the vehicles 5 times over. Not likely to see this though, lol
 
dgerb said:
Another thought, I wonder if the applying a few wraps of the self-sealing silicon tape around the upper hose, before it fails, would work.
Click to expand...
I like this idea. I wonder if it would work? It would be the first thing I would try if it blew on the trail as I have used it before on radiator hoses. It's a good thought....
 
dgerb said:
Another thought, I wonder if the applying a few wraps of the self-sealing silicon tape around the upper hose, before it fails, would work.
Click to expand...
that is an excellent idea, im def adding that to my trail kit, prob would be enough to get home or at least to the main road with
 
Un4seen4 said:
that is an excellent idea, im def adding that to my trail kit, prob would be enough to get home or at least to the main road with
Click to expand...
I carry that, and the replacement part. *knock on wood*
 
Winston said:
I carry that, and the replacement part. *knock on wood*
Click to expand...
i went out and bought some that day, and ordered a replacement part and silicon hose, i think ill do a quality job on cutting the si hose and swap it out on the spare part so its a more long term fix if it happens
 

Create an account or login to comment

Join now to leave a comment enjoy browsing the site ad-free!

Create account

Create an account on our community. It's easy!

Register

Log in

Already have an account? Log in here.

Jeep 392 Forum Favs 👍 View All

JEEP 392 Forum Photos

Latest Discussions

Back
Top