ground wires

I noticed my tps and other sensors like iac and others are giving a 12 volts read on my multimeter with key-on instead of the usual 5 volts it goes as high as 18.5 volts with car on! I'm guessing those ("missing") 5 volts show up eventually when I turn the car on? But wait , how can that be... I...

Hey what's up guys, Im new to the forum here. So here's my dilemma. I have a 1986 GT 5.0 That keeps shutting off. You start the car up, it runs fine, sometimes for a few minutes, sometimes for a few seconds. Sometimes it will shut off on its own, sometimes it will happen if you press the...

I'm putting my 96 Gt back together after a long project and I think I have the battery wires figured out but thought I'd double check on the negative side. Do all three of these wires go together on the negative terminal? I was trying to find a photo to double check with but couldn't find one...