I have two new sensors that came from ford to fill two holes around the thermostat. trouble is i can fidure out which one goes where.

It is on a 97 4.2

one is grey part number f5af12a648ab

the other is black oart numberf65f10884aa

they botha are the same thread pipe thread and length with a two wire female end.


Can someone point me to which one goes where??

thanks in advance

Josh