couple of stumpers here. i've got a tach that will run off the stock sender, but i need to bypass all the stock wiring because it's shorted out somewhere. already blew up two $50 senders and i reeeeeally don't want to do it again. so if somebody could guide through this, i would appreciate it. i have found the harness and know what those wires are, but they disappear shortly after the harness and surface far, far away. so i guess what i'm wondering is what the wiring is at the disconnect by the radiator hose?? thanks

next question. i'm thinking about making a custom gauge panel and replacing my speedo with the tach. without the speedo hooked up, will the cruise still work? or is that where the signal comes from. thanks

dave

 

Have you looked at a repair manual like Hayes or something? I have also gone to the dealer for electrical prints, this was for my mustang years ago, but all they did was photcopy the portion i needed. Having a schematic really helps for electrical work.