sometimes when i park my 87 944 the cooling stays running and wont turn off, so i have to remove the fuse. im thinking a malfunctioning sensor? any ideas? also what's normal psi at the fuel rail from the fuel pump? thanks.

 

Usually the fan will stay on for a period of time when you shut off your engine, but it should turn itself off once it's cooled.Does the fan come back on when you put the fuse back in? If so, than mostlikely its a badfan switch. Here's a link to one of the forums sponsorsite with what you should need. You've got two temperature choices.

http://www.getcoolparts.com/epcvsoap...d=getcoolparts

 

Fan Switch. I don't run anything but the cooler one.