Radiator replacement, manual vs auto trans?

e207

Test Drive
Location
United States
I’ve got an 07 S, been searching for a new radiator, most of what I’m finding is for an auto trans, mine is a manual. I have seen one or two, but the price on them was three times more.. yet most places list the “auto trans” rad as an exact fit? Can I use the auto radiator without issue?
 

e207

Test Drive
Location
United States
Ok, I just picked one up from NAPA , odd, the exact same part number has almost a $50 price difference depending on if you look it up under a 2007 or a 2008......
 

e207

Test Drive
Location
United States
QUESTION... what about closing off the connections for the transmission lines? Kinda feel like leaving the open might let moisture in there and cause corrosion to start.....wondering what’s easiest to get to use for it?
 
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Muadeeb

Nissan al Gaib
Admin
Location
Dallas
Depends on the radiator, but you might be able to find a fitting at home depot or other to seal it. The ones I've seen, the connections to the radiator hoses screw on.
 

Prime

Shut up Baby, I know it!
Admin
Location
Denver Adjacent
Can also get varried sizes of rubber cap that you can install on the bungs to seal that loop. That's what I did when installing the CSF radiator.
 

Brunnie

Bumpers Installed
Supporting Member
Location
Colorado Springs
Why does the cap ON the radiator not have a spring system, but the one on the overflow does?
I believe it is because it isn't meant to seal the system, just an access point for filling the radiator with fluid. But this is just a guess too.
 

e207

Test Drive
Location
United States
I believe it is because it isn't meant to seal the system, just an access point for filling the radiator with fluid. But this is just a guess too.
I believe your right... found some info bout it.....as of now I am trying to fill the coolant..I guess no burping funnel needed on these.... from what I’m seeing just keep bringing the temp up... filling the overflow til it fills itself? Only ever did one other radiator change before, and Not at all familiar with these systems
 
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e207

Test Drive
Location
United States
True story. The cooling system is pressurized in the overflow can not in the radiator.
Now, is it correct that not seeing coolant at the cap on the radiator is normal when full? That the full level on the overflow is the one to go by when checking? I have heard that mentioned on YouTube garage.
 

Prime

Shut up Baby, I know it!
Admin
Location
Denver Adjacent
Yes. The radiator will not remain 100% full when it cools down. This is due to fluid cooling resulting in a lower total volume.
 

TerryD

Total Tease
Supporting Member
Location
Covington, Va
The "overflow" isn't an overflow. It's referred to as a "de-gassing" bottle.

There is a capped nipple on the fitting coming out of the heater core that you will want to pull the cap off of as you fill it. That let's the air out of the heater core and one of the de-gassing bottle lines that runs back under the IPDM.
 

e207

Test Drive
Location
United States
Well filled most of it up through the radiator cap, then ended up just filling the “overflow” to the full line and running the engine to temp, them letting it cool a few times til it stopped sucking all the coolant in.. ran it around several times today and the level is now staying about half an inch above the full line now. Probably not the quickest way.. but it worked. Thanks all for the input!
 
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