washers

zigs said
I'll keep that in mind if the double washer fails. It stopped the weeping on the banjo fitting but now the proportioning valve is leaking at the sending light pin. Had it apart already cleaned it out , new o-ring still seeping. Looked like it had been taken apart before ,sending unit nut is plastic?

It's been awhile since I have been into one. I don't believe there is supposed to be fluid "to" the switch, that is, I believe the O rings in the shuttle are supposed to isolate it. So the guts probably need attention.

Is this what you have?