A/C high pressure switch
 

Does anyone know where this *$%#@ switch is located on a '87 turbo?

My (single) electric fan doesn't run, except when jumpered directly. I pulled the fan relay and it tested out OK. According to the line diagram, the relay coil is activated when the HP switch closes on high pressure. Just can't find it. I suppose I'll lose the refrig charge if I have to replace it?

Also, does anyone know if there is a "limp along" mode if the engine begins to overheat?

Any experiences here? Thanks