Originally Posted by Dominick
Ok if the computer relay was stuck on wouldn't the truck stay running
even if you shut it off and took the key out?
No, the coil is turned off with the key separately from the computer. So even if the computer stayed on the coil would shut off and kill the truck.
Since you say you just got this truck you can also check the diagnostic connector under the hood. The fuel pump can be energized from that by grounding one of the terminals, and it may have been rigged up so it would run before you got it.
Yes, they mean the electrical ignition switch, not the key lock cylinder.