Disable ignition?
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Joined: Apr 2010
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Disable ignition?
I have a relatively strange question. My parents own an early 90's F250. My father has Parkinson's and is insisting on still driving. My mother has asked me to disable the vehicle so that he can't start it. The obvious to me would be to disconnect the battery, but that won't work because it's the one thing he always checks. I have pulled all of the fuses I could find below the steering column and none of them disabled the ignition. I would greatly appreciate it if someone could suggest a way that I can keep the truck from starting, but that can be fixed in just a couple of minutes without tools. It can be something simple, just can't leave wires obviously hanging down or disconnected or anything like that. Thanks.
Post Fiend
Joined: Mar 2002
Posts: 19,402
Likes: 38
From: Bonita Springs FL
There is already a switch under the dash that will disable the truck, it's called the inertia switch. Pull up on it and the fuel pumps don't get power. It's up under the dash. It's above and to the left of the brake pedal. There are two wires going to it coming from the main wiring bundle.
Post Fiend
Joined: May 2004
Posts: 11,289
Likes: 6
From: Lakewood, Ohio
sorry about your dad and the situation you are in.
will he try to find the inertia switch?
if he will maybe you need to be more aggressive.
disconnect the battery and put a chain/lock on the hood.
i had to take my fathers ability to drive away a few years before he passed away.
it was not an easy thing to do.
good luck.
will he try to find the inertia switch?
if he will maybe you need to be more aggressive.
disconnect the battery and put a chain/lock on the hood.
i had to take my fathers ability to drive away a few years before he passed away.
it was not an easy thing to do.
good luck.
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Elder User
Joined: Feb 2007
Posts: 601
Likes: 1
From: Chicagoland
Would he notice the fuel pump relay missing? If not that's a quick and easy go/no go part. If you need to be a little more devious you could have a relay you swap it for that has one or more of the legs removed.
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Posting Guru
Joined: Dec 2008
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From: Sterling, Va
My friends grandfather has dementia and has the same situation. they took his truck down to a shop where they install remote locks and alarms and stuff like that and they wired it up so you couldn't start the truck without pushing the OD button off. So far it works great for him he only thinks there's something wrong with it. this was on a Toyota Tacoma, but i don't think it would be any different in a f-250.
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