Trans Cooler Line Seized
Banned
Joined: Dec 2018
Posts: 3,541
Likes: 458
I’ve got one on the trans end (ZF6) that’s rounded off too. Idiots not using a flare wrench and over tightening. I’m going to attempt replacing both of them here shortly…shoulda done that when the trans came out for the clutch job.
You might just have to cut them them off and figure out a way to delete that cooling circuit. Or replace the entire rad and both lines would be how a shop would do it. If it’s an auto you don’t need that cooler anyway if you have a real air-cooled unit on the front. If it’s a ZF6 you don’t really need it either as most manual transmissions don’t have any external cooling but I probably would keep it by fixing it right.
Didn’t they make a 7.3 radiator that doesn’t have that cooler in the bottom? I briefly considered doing that and deleting the lines as they are a pain in the *** if you have to R&R the rad and they don’t like to seal very well either unless you really start reefing on it with a 16mm flare wrench to the point where it starts to make you cringe a little waiting for something to break. Crappy design.
You might just have to cut them them off and figure out a way to delete that cooling circuit. Or replace the entire rad and both lines would be how a shop would do it. If it’s an auto you don’t need that cooler anyway if you have a real air-cooled unit on the front. If it’s a ZF6 you don’t really need it either as most manual transmissions don’t have any external cooling but I probably would keep it by fixing it right.
Didn’t they make a 7.3 radiator that doesn’t have that cooler in the bottom? I briefly considered doing that and deleting the lines as they are a pain in the *** if you have to R&R the rad and they don’t like to seal very well either unless you really start reefing on it with a 16mm flare wrench to the point where it starts to make you cringe a little waiting for something to break. Crappy design.
Tuned
Joined: Nov 2020
Posts: 403
Likes: 171
From: Greenville, SC
If you decide to cut the hard line, you could try removing the entire fitting. More photos and part numbers in this thread:
https://www.ford-trucks.com/forums/1...fitting-3.html
https://www.ford-trucks.com/forums/1...fitting-3.html
Lead Driver
Joined: Aug 2022
Posts: 5,065
Likes: 1,415
From: Oologah, OK
that is precisely why, I bypassed the radiator when I installed the 6.0 cooler.
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It's a Van Gogh
Joined: Feb 2010
Posts: 7,813
Likes: 1,335
From: Elk Grove, CA
I'd keep the in-radiator cooling line, even if that means a new radiator. Mark K is a big fan of that.
Can you remove the big nut in the pic?
Can you remove the big nut in the pic?
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