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My 1992 5.9L turbo diesel wont start. I have replace the Key switch thinking it was the problem. When i turn the key to on, the heater comes on but no ACC. or dash lights. But when i unplug the 7 spade connector off the bottom of switch and jump the pink/black wire to the ACC wire everything comes on and i can start the truck but when i turn key off it stays running. for some reason it's not opening the circuit or closeing it. From what i think if you can jump it at the plug then that means the switch is bad... but its brand new? Any info on what else could be stoping me from getting ACC on and truck to start normaly.
PS: This just happend random one day.
PS: This just happend random one day.