Heater hose leaking - JeepForum.com
 
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post #1 of 5 Old 12-23-2019, 09:18 AM Thread Starter
Kristian_Burns
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Heater hose leaking

Hi all, Working on a 2013 grand Cherokee 3.6 and it looks like the heater core hose is leaking. What is the best way to fix this?

Thank You

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post #2 of 5 Old 12-23-2019, 09:31 AM
mudbear
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It looks like the spring clamp is just fatigued.

I would just clean up the area and replace the clamp; maybe with one you can tighten if there’s enough space.

Btw, I’ m not sure how much will flow out there while it’s not running and if you’ll need to do a rad drain. Try a quick clamp replace, then just topping up the reservoir.

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post #3 of 5 Old 12-23-2019, 12:03 PM Thread Starter
Kristian_Burns
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Quote:
Originally Posted by mudbear View Post
It looks like the spring clamp is just fatigued.

I would just clean up the area and replace the clamp; maybe with one you can tighten if thereís enough space.

Btw, Ií m not sure how much will flow out there while itís not running and if youíll need to do a rad drain. Try a quick clamp replace, then just topping up the reservoir.
If i take off the hose, wont there be air in the system then?
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post #4 of 5 Old 12-23-2019, 12:47 PM
ColdCase
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As a test, you could try to put a screw type hose clamp on it, they open up and don’t require you to take off the hose, but you may have to slide the spring clamp out out the way to provide enough room.

Could there be something dripping near the connection, to make it only look like its leaking?

On the other hand, shouldn’t that hose fit over the bump in the pipe, perhaps the hose is not installed correctly. If so, it may be better to pull it off and inspect the pipe.

I just got lost in thought. It was unfamiliar territory;
Current: 2011 Grand Cherokee Overland V8, 2009 Liberty Rocky Mt V6
Previous: 2000 Grand Cherokee Laredo I6, 1979 CJ7 I6 Quadratrac
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post #5 of 5 Old 12-23-2019, 05:07 PM
mudbear
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Quote:
Originally Posted by Kristian_Burns View Post
If i take off the hose, wont there be air in the system then?
Hey Kristian, you’re right. No doubt some air will be introduced into the system which is not good.

It doesn’t look too bad in the pic, so I would be inclined to first try adding a screw type clamp using CC’s great suggestion of fully opening it up and placing it there. That heater core tube is thin and not as strong as a water pump tube so you will have to be careful tightening the clamp.

However while you’re in there working with the clamps, if you notice that the hose is not fully seated & round on the tube, then perhaps it is best to just replace the hose, drain, flush and burp out any air in the system. Engine heat makes them go bad over time. Good luck!

19 WK2 5.7 High Altitude current, gone:
16 WK2 3.6 Limited
03 WJ 4.7 HO Limited
94 ZJ 5.2 Laredo
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