Radiator leak around TrANS fittings

[Lefty Lawn Man]

Hey guys. I got my 2006 6.0 back together last night,Put water in degas bottle and it stARTED pouring out the bottom of the radiator as fast as I put it in.I had had a very hard time threading the trans cooler lines(or whatever they are)in when installing baxk in. I chased the cooler around trying to get it in place stuck something in lower hose hole behind it to hold in place to thread one side,tightened.then did other fitting......took half the frontend back apart today, Got the radiator out. Stuffed rags in lower hose hole.Filled with water and it pours out around the 2 fitting holes for the tranny cooler thing. Any suggestions/advice?

[dannyboy950]

Did you put teflon on the fittings?

[m-chan68]

New radiator.

[Lefty Lawn Man]

It's leaking around the outside of the fitting between fitting and the plastic housing. New radiator? really? No repair shop fix?

[m-chan68]

If you removed BOTH transmission cooler lines by unthreading both of them at the same time instead of disconnecting them by the so-called quick release type fittings, the inner o-ring that seals the cooler core to the INSIDE side of the plastic tank has dislodged, causing the massive leak you describe. You would be far from the first person to have made this mistake.

[Lefty Lawn Man]

Ok. Thankyou m-chan68. I ordered a new one today.

[BeXtreme04]

A whole new radiator? A radiator shop should be able to remove the tank so that you can re-seat the trans cooler and then re-crimp the tank back on for like $20 unless I'm missing something? Did you disassemble the whole front end to remove the radiator? I only had to remove a few things and had mine out in less than an hour


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[dannyboy950]

None of the radiator shops around here will reseal plastic tanks anymore.

So a new radiator is about the only option here.

[BRAD6160]

He just removed the intercooler, fan shroud, air filter, and top support cross member.

[BeXtreme04]

That sucks! FYI I didn't have to remove the upper support or inter cooler... Just the intake and intercooler pipes, and the hoses and lines connected to the radiator. Then I just unbolted the upper radiator mounts and slid the radiator and shroud out together.. Only took about 30 min


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