Need Help with a starter problem

[EricinAK]

My truck (94 Chevy K2500 Turbo Diesel 6.5) will crank any time the negitive cable is connected to the battery (With the positive connected), even if the key is not in the truck. It just started, I tried to trace the wire from the Junction box on the firewall on the passanger side to the starter and it looked Ok. I then made sure the wire was not tuching the other wires, and made sure the starter was grounded.

I do not know why the truck would (Hot wire) start itself when the battery is connected? If you have any Ideas let me know.

Thinks,
Eric:mad2:

 

[NVW]

It must be a shorted ignition switch.

 

[Burning oil]

:iagree: Does the Switch feel funny? Try unpluging switch and hooking up bat again, if it stops then BINGO! Get a new one. Cheap at auto parts stores.
Hey, do you know Sahra?

 

[ak diesel driver]

My vote is for a stuck starter selenoid.

 

[bison]

X 2,3,4,5

Solenoid contacts welded together

 

[EricinAK]

Ok So is there an easy test for a stuck Solenoid? or Do I have to just buy a new one?

Thinks for all the quick replys

 

[bison]

new sol or new starter,you better of to buy the starter.

The old solenoids could be taken apart and cleaned up ,the new ones are soldered together.
dont know what style you have.

 

[ak diesel driver]

pull all the small wires off and if the starter still runs when you put juice to the big wire then you know it's selenoid

 

[Matt Bachand]

Check the RELAY underhood fuse box.

Mine was bad and it wouldn't crank at all, I can imagine it sticking open perhaps. Swap it with the A/C one and see if it stops. Can't hurt to try.

 

[JiFaire]

pull all the small wires off and if the starter still runs when you put juice to the big wire then you know it's selenoid

:iagree: x2! :thumbsup: