Radiator leaking

I soldered cracks in my copper/brass radiator seemingly every week or two until I got around to replacing it. Had 2 "new" copper/brass radiators replaced under warranty (less than 1 year old) before saying F it and buying a heavy duty Aluminum one. Got mine from CG&J in Gadsden, AL and been problem-free ever since.

So sure, you could solder cracks, fill holes, and fill it up with various stop-leaks...but the best and only sure-fire way to FIX it is a new radiator.

 

A little more info. What kind of truck? Where is it leaking (core?, end plates? Plastic or metal end plates?) How big of a leak?

 

The last time my radiator was leaking, it was from the gasket, upper tank. I figured easy fix. I pulled the radiator out, sent it to the shop, $1100.00 later, had a new core in it. When they took the old one apart, they said it was ready to stretch like and accordian. With the horsepower I had, they did me a favor, upgraded to a 5 row.

 

If the leak isn't to bad then you could try this. Plastic endplates suck. If you end up replacing then try and get a new unit with metal endplates.

http://www.amazon.com/K-Seal-ST5516-Purpose-Permanent-Coolant/dp/B002BJEG3U/ref=pd_sim_263_2?ie=UTF8&dpID=41P2iZDOeML&dpSrc=sims&preST=_AC_UL160_SR124,160_&refRID=1D2YDCZ9Z2HA0128BMPX

This is some pretty good stuff. I have used it with guys that have leaks on plastic end radiators that did not have the funds to replace and it stopped most of them.