What Is this??

I was told these go on the bottom of my radiator but where? and what are they for?



they go into my core supprt near the coil



anyone know what these two wires off the coil are for?



and also am extremely curious as to what goes here? its empty and theres a plug not hooked to anything???


please help me out thanks in advance.

got some views and no replies, thanks guys

thanks for the reply, any possibilty you can get me a picture of the plug those wires go to on the radiator? i cant find any sensors under there, i looked last night but maybe not hard enough. not too sure if that black one goes to a ground, because if you look at the picture the yellow and the black ar eon the same tab on the coil.

I think the white plug goes to the fat round one.





And here is were the plug on the rad is all though mine is different but mine is also a 92 my 86 had plugs like yours. But the sensor is in the same spot.

my 84 has those two wires like that to the rad. it is exactly where pont shows them to be,only my plug just has two studs sticking out of it and i put a wire on each one, sorry don't know about the rest.

thanks everyone appreciate the help.
i dont think i have a round sensor type thing like that on my fenderwell and if i do its probably already plugged into something because all the plugs are plugged in except for the one. unless im missing that sensor, and maybe instead of being screwed in on my fenderwell it was in that holder thing??... anyone know what sensor that is? cuz the wires match.

anyone know what that fat round thing is for? and what it does?

i need that sensor anyone have one? lemme know>..

You can get that sensor for the rad at autozone for 50 bucks, I just picked up one yesterday for my rebuild.. The part is niehoff and part number is TS76181..