Last summer I noticed that the cooling fan on my `77 never turned on. Since I almost never drive in traffic I drove all summer that way but knowing that heart ache was waiting if I did not find out why I asked my mechanic to give it a quick once over.
He said that the fan itself was fine -- it turned on when the switch was bypassed -- and suggested I get a replacement switch which I have done.
Can someone tell me, does this screw into the core of the radiator itself? I.e., will coolant come out when I remove the old switch? If not replacing the switch will be a few minutes work, otherwise...