custom kill switch?
Thread Starter
|
New User
Joined: Feb 2012
Posts: 11
Likes: 0
custom kill switch?
So I did some research on the forums and did not find what I was looking for. I want to wire up a kill switch to one of the existing Aux switches. I have a diesel and I was wanting to wire it up for the ignition system. I am fairly competent with mechanics but not with electronics, please any info would help!
Post Fiend
Joined: Sep 2003
Posts: 6,096
Likes: 26
From: Mesa AZ
Find the relay for your FICM (if there is one) and interrupt the power with your kill switch. I would think that would accomplish your goals.
Note: EDIT to delete reference to SPED mod which is 7.3 specific....
Note: EDIT to delete reference to SPED mod which is 7.3 specific....
Lead Driver
Joined: Oct 2010
Posts: 5,420
Likes: 16
From: Ouray, CO
To interrupt the starter, you'd need a high-amp relay under the hood
since the cranking AMPs would over-whelm your 30-amp switch.
But, messing with the thicker cables to the starter is a PITA.
The 6.0 has a fuel pump cut-off behind the pass-side kick panel.
Routing the circuit via your up-fitter should be easy, but somebody
would still be able to ruin your battery/starter trying to get it started.
It only handles a few amps (or less).
This is on my "to-do" list someday.
since the cranking AMPs would over-whelm your 30-amp switch.
But, messing with the thicker cables to the starter is a PITA.
The 6.0 has a fuel pump cut-off behind the pass-side kick panel.
Routing the circuit via your up-fitter should be easy, but somebody
would still be able to ruin your battery/starter trying to get it started.
It only handles a few amps (or less).
This is on my "to-do" list someday.
Fleet Owner
Joined: Apr 2012
Posts: 27,307
Likes: 549
From: Spanaway
Or you can go after all three. FICM relay,Fuel pump relay
and the line to the starter solenoid. But just doing the FICM relay will do what you want.
Yes they can crank it but it won't start.
Sean
and the line to the starter solenoid. But just doing the FICM relay will do what you want.
Yes they can crank it but it won't start.
Sean
Trending Topics
Thread Starter
|
New User
Joined: Feb 2012
Posts: 11
Likes: 0
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!
Joe Kucinski
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!
Michael S. Palmer
The Best F-150 Deal of Every Trim Level (XL through Raptor)
Joe Kucinski
Thread
Thread Starter
Forum
Replies
Last Post
77Lance
1973 - 1979 F-100 & Larger F-Series Trucks
3
Jul 15, 2004 03:10 PM