I have a 1992 F150 with the 300 Six, MT. I bought a supercooling two core radiator and it has two hose connections for what I'm assuming is the overflow tank. My old radiator only has one hose connection for the overflow tank. Do I need a different overflow tank that is made for two hoses? The radiator I got is for an automatic but I was just going to plug the transmission line connectors. Any ideas?

 

Just plug-off the second hose tube with a rubber cap / plug and tighten clamp.

The overflow reservoir only needs one connection for the radiator.

My aluminum radiator was the same way.

See picture.


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Thanks for the great picture. That looks like something that I can handle.

 

On my truck, that line runs up to a port on the top of the throttle body. Then a line comes out of a port at the bottom of the throttle body running back to somewhere down around the water pump gooseneck. Supposed to keep the throttle body from freezing up in the winter?

A lot of guys plug those ports, so maybe yours has been plugged. I assume that they all came with that line, but maybe not for trucks in warmer climates?

 

Yeah, it could be that trucks built for warmer climates do not need it
or
the difference between our 4.9L engines and your 5.0L engine.

My 1985 Corvette had the cooling (Hot) water circulating through the TPI Throttle Body, but I by-passed it years ago, cause I live in Florida.

Massey165's profile does not show what State he lives in.

 

It seems like a stupid idea anywhere, but especially counter productive in warm climates. I put a new radiator in today, and just about bypassed mine. Then I got to thinking about winter coming along, 20 below zero temps, and thought maybe it was there for those days... just don't have the guts to find out for sure!

 

If I lived where the ground froze, I would have hooked mine up also.

Below 32 F is rare here in North Florida.

 

Thanks for the help guys. After doing some more research I'm thinking that maybe the TB connection is only used on the E40D transmission trucks. My truck came with a manual tranny so my original radiator did not have the extra connection. Seems weird to me that an automatic would need that connection. Don't quote me, but this is what I'm thinking...