Originally Posted by crazyhabsfan
Ok, long story short truck has engine from 4.7 2000 dakota, sat for last 2 months, replacee battery starter.
It wont crank, I hear the fuel pump.... I checked wiring and it looks like there is a live 4.5 volt wire... grey in colour, runs with the yellow and red wires from firewall understeering wheel in dash. Its not connected...
Are you sure the motor isn't seized? Grab a socket (3/4 I believe) with a breaker bar, put it on the crank and see if you can turn the motor. Bench test the starter as well, make sure the solenoid is kicking out.