Coolant leak????? Please Help

[ewmoose]

Folks,
I have done a search here and not found exactly what is happening to me, so thought I would post up the question. My 6.4 has developed a small coolant leak that appears to be on the bottom, back drivers side corner of the radiator, where the metal joins the carbon/plastic part of the radiator. The leak is approx. 50 - 60 drops per minute when the truck is hot and NOT running, The leak seems to stop once the truck cools to below 120 or so. There is no leak at all when the truck is cool and no apparent leak when the truck is running no matter the temperature. The only place there is a leak is where described and it is dripping straight off that corner of the radiator and onto the ground just under the front bumper. I read on here one other person having a similar problem and it was fixed following a flush. That makes no sense to me but . Would hate to spend the time and money on a flush with no resolution or a increased leak rate. I installed the venturi mod about a week ago and it did not help, I also have a coolant filter to install but don't want to do until I get this problem fixed. I would appreciate any help at all with this problem. Don't have time to put it in the shop right now and really don't want to spend all that it will cost for such a small leak. Also forgot to mention that I have just been adding distilled water, could that be thinning out the mix and causing it to leak? Thanks again for the help.

Eric

[SCUFFY828]

radiators leaking is a very common problem with the 6.4

[ewmoose]

I understand, I just think it is weird that it only leaks while hot and the engine not running?

[SCUFFY828]

Originally Posted by ewmoose

I understand, I just think it is weird that it only leaks while hot and the engine not running?

yea i understand that as well, i dont have that answer ,just put in a couple hundred radiators for the known leak

[ewmoose]

how hard is it to swap radiators? Is it something I can do myself? Not looking at spending a bunch of money on this truck right now but it is my daily driver so I need something dependable. Will it hurt to run it with the leak, as long as I keep level good? Should I top off with coolant each time or distilled water?

[ewmoose]

Thought about gooping up some high temp RTV where the leak is for a temporary fix. LOL

[SCUFFY828]

Originally Posted by ewmoose

how hard is it to swap radiators? Is it something I can do myself? Not looking at spending a bunch of money on this truck right now but it is my daily driver so I need something dependable. Will it hurt to run it with the leak, as long as I keep level good? Should I top off with coolant each time or distilled water?

its not like super hard to , dont know what your abilities are to say just go aheda and swap it out , no problem, but it isnt that bad to get outta there

Originally Posted by ewmoose

Thought about gooping up some high temp RTV where the leak is for a temporary fix. LOL

wouldnt do that , i have sent a few to the radiator shop and had them repaired , was alot cheaper that way