Truck randomly died today. NEED HELP

[MontanaJack]

Thanks towcat, is this the piece you're talkin about:https://www.google.com/search?q=91+f250+ignition+slider+switch&num=20&client=safari&hl=en-us&prmd=sivn&source=lnms&tbm=isch&sa=X&ved=0ahUKEwiD8JzA_YnKAhUB7WMKHd3HD2YQ_AUICCgC#imgrc=H_4oeJiWtm8YfM%3A

 

[crash-harris]

No. He's talking about the ignition switch. It mounts under the dash on the top side of the steering column.

There is a flat bar that attaches to the part in that picture and works the switch back and forth when you turn the key.

 

[KZF250]

http://api.viglink.com/api/click?format=go&jsonp=vglnk_145170014913710&key=8c90d517aafe5bf8e3f2570c23cf0712&libId=iiwgs8sz01000b52000DAoujj8h0z&loc=http%3A%2F%2Fwww.oilburners.net%2Fforums%2Fshowthread.php%3F75374-Random-Loss-of-Electrical-Power-Short-in-Ignition-Starter-Switch%26p%3D884853%23post884853&v=1&out=http%3A%2F%2Fwww.oreillyauto.com%2Fsite%2Fc%2Fdetail%2FMOT0%2FSW2473%2F02018.oap%3Fyear%3D1984%26make%3DFord%26model%3DF-250%26vi%3D5006387%26ck%3DSearch_ignition%2Bswitch_5006387_2827%26keyword%3Dignition%2Bswitch&ref=http%3A%2F%2Fwww.oilburners.net%2Fforums%2Fmember.php%3F25183-KZF250&title=Random%20Loss%20of%20Electrical%20Power%20Short%20in%20Ignition%20%2F%20Starter%20Switch&txt=http%3A%2F%2Fwww.oreillyauto.com%2Fsite%2Fc%2Fde...gnition%2Bswitch

 

[riotwarrior]

Ya seeing as yer having electrical izsues...discconect grounds on batteries till resolved...no need for thermonuclear meltdown of yer truck....

 

[crash-harris]

^^^ that thing.

 

[hce]

May want to look at Gomers diesel in Missoula, almost local for you. I was surprised at their 6.9/7.3 page.

 

[MontanaJack]

Got the ignition switch replaced and it did solve the problem of no power with the key on. Thanks for the help everyone. Now I need to order the FSS and replace it without blowing my truck up

 

[icanfixall]

Good to see you are making progress fixing this. The sad part is Ford engineers made electrical parts so weak they sometimes casue fires and we loose the truck. A few years ago a member drove home from a long day at work and parked in the driveway. Finally resting inside when pounding on door people screaming your truck is on fire.. He lost that rig in about 5 minutes. The 2 worst places for electrical load is the main head light switch and the ignition switch.