Notices
6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van

FICM kill switch..... interesting thread going

Thread Tools
 
Search this Thread
 
Old Oct 29, 2013 | 12:55 PM
  #1  
amdriven2liv's Avatar
amdriven2liv
Thread Starter
|
I'm hitting easy street
15 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Nov 2009
Posts: 6,395
Likes: 27
From: Central Oregon
Club FTE Silver Member

FICM kill switch..... interesting thread going

Here is an interesting thread on voltages in the FICM with a "kill switch".

Thoughts?

ficm kill switch question - Ford Powerstroke Diesel Forum
 
Reply
Old Oct 29, 2013 | 01:33 PM
  #2  
BLADE35's Avatar
BLADE35
Hotshot
15 Year Member
Liked
Joined: Apr 2010
Posts: 19,072
Likes: 243
From: Saratoga Springs,UT
SOunds Like they are switching the Power to relay

I think they need to switch the relay Control (MPR Circuit)Circuit the ground circuit that's the same circuit the FICM uses to do it
 
Reply
Old Oct 29, 2013 | 01:33 PM
  #3  
Misky6.0's Avatar
Misky6.0
Lead Driver
15 Year Member
Liked
Loved
Community Favorite
Joined: Oct 2010
Posts: 5,420
Likes: 16
From: Ouray, CO
I'd prefer a mechanism that keeps the starter from engaging than risk FICM/injector damage.

I'm looking at interrupting input signals to the PCM which are used to enable starting/running (hints: trans NOT in park/neutral (auto trans), key NOT in run/start, etc.)
 
Reply
Old Oct 29, 2013 | 01:39 PM
  #4  
BLADE35's Avatar
BLADE35
Hotshot
15 Year Member
Liked
Joined: Apr 2010
Posts: 19,072
Likes: 243
From: Saratoga Springs,UT
I agree with Misky and it been Brought up Before

They may crank till batterys are Dead if it cranks

No Crank they should Abandon the Idea Fast and Move On
 
Reply
Old Oct 29, 2013 | 02:45 PM
  #5  
Lilpooh's Avatar
Lilpooh
Senior User
Joined: Oct 2012
Posts: 354
Likes: 3
Originally Posted by Misky6.0
I'd prefer a mechanism that keeps the starter from engaging than risk FICM/injector damage. I'm looking at interrupting input signals to the PCM which are used to enable starting/running (hints: trans NOT in park/neutral (auto trans), key NOT in run/start, etc.)
What risk?? The switch is in between the ignition and FICM relay. Basically the switch prevents 12v from reaching the relay, same thing as then you turn the key. Or it's just like removing the FICM relay when your diagnosing upper fuel bowl for air bubbles.

I don't see damage, with the FICM disabled, the injectors won't fire.
 
Reply
Old Oct 29, 2013 | 03:01 PM
  #6  
Bullitt390's Avatar
Bullitt390
Certified Thread Hijacker
20 Year Member
Photogenic
Liked
Joined: Aug 2001
Posts: 14,441
Likes: 60
Club FTE Silver Member

Disabling the starter could increase chance of more vandalism by an irate thief.

Crank no start creates noise and thief moves on. Worst case you replace a Set of batteries and whatever else they broke.

Josh
 
Reply
Old Oct 29, 2013 | 04:26 PM
  #7  
POORBOY1964's Avatar
POORBOY1964
Senior User
Joined: Sep 2011
Posts: 236
Likes: 0
From: Riverton UT.
Nothing is foolproof but I think this is a good deterrent, and I may or may not have done this.
 
Reply
Old Oct 29, 2013 | 04:44 PM
  #8  
olfordsnstone's Avatar
olfordsnstone
Lead Driver
20 Year Member
Liked
Loved
Joined: Sep 2003
Posts: 5,241
Likes: 3
From: Other side of the sunrise
Is there even a market, or demand for stealing older Super Duties? Is this a real threat, having our trucks stolen? I can see doing this on a Mustang or Corvette, but...
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

10 Ways Ford is LOSING to the Competition

 Joe Kucinski
story-1

Top 6 Best Deals Available on New Fords & Lincolns Right Now

 Brett Foote
story-2

This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

 Verdad Gallardo
story-3

Top 10 Fords at 2026 Carlisle Ford Nationals

 Joe Kucinski
story-4

3 Best / 3 Worst Parts of Modern Ford Ownership

 Brett Foote
story-5

10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

 Pouria Savadkouei
story-6

Every 2026 Ford Engine Explained

 Brett Foote
story-7

10 Ugly Ford Trucks That We Still Kinda Love

 Joe Kucinski
story-8

10 Things Every Truck Owner NEEDS (2026 Edition)

 Michael S. Palmer
story-9

Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

 Verdad Gallardo
Old Oct 29, 2013 | 05:02 PM
  #9  
99ExpyProblems's Avatar
99ExpyProblems
Posting Guru
Joined: Jun 2006
Posts: 1,590
Likes: 0
Originally Posted by olfordsnstone
Is there even a market, or demand for stealing older Super Duties? Is this a real threat, having our trucks stolen? I can see doing this on a Mustang or Corvette, but...
Where I live in South Carolina, stealing Powerstrokes is HUGE! Just check out Craigslist. Rewards for stolen ones.... they start out like this...

I was getting gas...
I was at the work site...

So are you going to always remember to kill your switch? Remember to take the keys?

The only thing is, if they are a group of thieves, there is absolutely nothing that a FICM kill switch or relay is going to do. They will tow it away and strip it down.
 
Reply
Old Oct 29, 2013 | 05:06 PM
  #10  
Rusty Axlerod's Avatar
Rusty Axlerod
Lead Driver
15 Year Member
Liked
Loved
Community Favorite
Joined: Feb 2011
Posts: 8,241
Likes: 155
From: L.A. (Lower Alabama)
Club FTE Gold Member
Apparently a crew cab F250 is second in theft rate, just a little behind a Cadillac Escalade. They did point out they are often work trucks with tools and other expensive stuff in them.

One of the articles I ran across (2010)
News releases
 
Reply
Old Oct 29, 2013 | 05:16 PM
  #11  
Yahiko's Avatar
Yahiko
Fleet Owner
10 Year Member
Liked
Loved
Community Favorite
Joined: Apr 2012
Posts: 27,307
Likes: 549
From: Spanaway
A crank no start I agree is a good noise maker.

There are a few places where a simple switch can cause that
type of issue for a wood-be drive off theft. I would also think
you could add a relay that if there starter was powered by jumping
the plug next to the heater boy it would sound the horn.

Sean
 
Reply
Old Oct 29, 2013 | 05:34 PM
  #12  
Bullitt390's Avatar
Bullitt390
Certified Thread Hijacker
20 Year Member
Photogenic
Liked
Joined: Aug 2001
Posts: 14,441
Likes: 60
Club FTE Silver Member

I'll admit in a couple of my older vehicles I had a hidden toggle that disabled the starter, but the more I think about it, a crank no start seems like a better idea for a new vehicle, especially a loud diesel.

Josh
 
Reply
Old Oct 29, 2013 | 06:01 PM
  #13  
99ExpyProblems's Avatar
99ExpyProblems
Posting Guru
Joined: Jun 2006
Posts: 1,590
Likes: 0
Originally Posted by Rusty Axlerod
Apparently a crew cab F250 is second in theft rate, just a little behind a Cadillac Escalade. They did point out they are often work trucks with tools and other expensive stuff in them.

One of the articles I ran across (2010)
News releases
Not anymore... as of July 2013, it's #1!!!!! Yay!

Ford F-250 'wins' title of most stolen car in America - CSMonitor.com

"Nonetheless, the F-250 had a claim frequency of nearly six times the average for all vehicles sold in the U.S., or seven per 1,000 insured vehicle years, according to the institute. That's the equivalent of having seven vehicles stolen out of every 1,000 over the course of a year."
 
Reply
Old Oct 29, 2013 | 06:11 PM
  #14  
BLADE35's Avatar
BLADE35
Hotshot
15 Year Member
Liked
Joined: Apr 2010
Posts: 19,072
Likes: 243
From: Saratoga Springs,UT
Ford might be #1 and #5 Spots for Top Stolen

Chev Filled the Rest of the Top 10 Now that's Sad WOW!!!!!

Why would the Thief get Pissed cause it wont start they are not out anything

I guess they could be Mad But Not like the Owner would be when they come across a No Start
 
Reply
Old Oct 29, 2013 | 06:20 PM
  #15  
Bullitt390's Avatar
Bullitt390
Certified Thread Hijacker
20 Year Member
Photogenic
Liked
Joined: Aug 2001
Posts: 14,441
Likes: 60
Club FTE Silver Member

Originally Posted by BLADE35
Ford might be #1 and #5 Spots for Top Stolen

Chev Filled the Rest of the Top 10 Now that's Sad WOW!!!!!

Why would the Thief get Pissed cause it wont start they are not out anything

I guess they could be Mad But Not like the Owner would be when they come across a No Start
Same thing when someone makes there stereo harder to steal, the thief goes postal. Seen and heard of it plenty of times.

Thief jams a screwdriver in the ignition and nothing happens they are likely to fumble around with stuff, get pissed and break more stuff.

Jam a screwdriver in the ignition and the starter spins but doesn't start the thief needs to hightail it out of there as their cover is blown.

Josh
 
Reply



All times are GMT -5. The time now is 02:17 PM.

story-0
10 Ways Ford is LOSING to the Competition

Slideshow: 10 ways Ford is losing to the competition

By Joe Kucinski | 2026-06-15 09:52:01


VIEW MORE
story-1
Top 6 Best Deals Available on New Fords & Lincolns Right Now

Some great targets in today's expensive world.

By Brett Foote | 2026-06-15 09:35:19


VIEW MORE
story-2
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-3
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-4
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-5
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-6
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-7
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-8
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-9
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE