Archived Truck wont turn off!

[cu1160]

I turn off the key, and the truck still runs, and instrument cluster lights still on. I replaced ignition switch to no avail. Turning off truck by unhooking batteries and pulling pink fuse in engine bay. Quadzilla also not working. Any help would be greatly appreactiated
Thanks

 

[B.G. Smith]

Disconnect the Quadzilla and see if that is the problem? bg

 

[GAmes]

How do bad starter contacts cause the engine to keep running when I turn off the key?
The fuel shutoff solenoid is actually two solenoids in one. One coil is very strong to pull the linkage open when you hit the starter to let fuel flow. This first coil produces lots of heat and is intended for short use. The second coil is smaller and has just enough power to hold the solenoid open for running. It does not build up heat like the stronger coil.
The stronger coil is wired in with the starter so when you hit the starter the fuel solenoid opens and the engine starts. When you let the key return to the run position only the second smaller coil is needed to hold the solenoid open.
When the worn starter contacts hang and stick closed the stronger first coil stays energized along with the starter. This causes heat buildup after a short time and can actually catch fire if the battery isn't disconnected quickly.

http://www.fostertruck.com/faqs/

 

[BigPapa]

He has an '02, Gary.

 

[GAmes]

It has the same starter, so perhaps there is a parallel.

 

[cu1160]

I unplugged the quadzilla and everything is working. The truck is shutting off. Thanks for the help