Notices
1999 - 2003 7.3L Power Stroke Diesel  
Sponsored by:
Sponsored by: DP Tuner

wont turn off by key

Thread Tools
 
Search this Thread
 
Old Mar 29, 2021 | 08:38 PM
  #1  
Chad LaChapelle's Avatar
Chad LaChapelle
Thread Starter
|
New User
Joined: Jun 2020
Posts: 8
Likes: 0
wont turn off by key

Plz help..... 1999 7.3 f350

Wont turn off by key.,,,. starts fine etc.. have to pull the large #27 fuse under hood for IDM to stop.....

Once stopped the airbag and battery light stays on the dash and have to disconnect batteries so does not drain.... nothing else stays on, radio turns off etc ....

Have tried replacing GPS Glow Plug Solenoid, Have changed ignition box and also tried removing it and switching off by hand, no good..... swapped out gem, no good.... turned key off and removed wires to waste gate solenoid and also tried removing alternator plug.... neither worked... swapped solenoids around etc, no good.... when i removed #30, the bcm relay, it click even with key off so obviously powered even when key off if that helps anyone. driving me absolutely crazy.......


 
Reply
Old Mar 29, 2021 | 09:43 PM
  #2  
Bill Kay's Avatar
Bill Kay
More Turbo
10 Year Member
Photogenic
Joined: Mar 2013
Posts: 523
Likes: 9
From: Carrollton, Ga
Had this happen to a Pontiac i owned years ago and it turned out to be the key switch gear inside the steering column had broken into. Key switch would push the gear down but would no pull it back up to open the contacts.
 
Reply
Old Mar 30, 2021 | 05:58 AM
  #3  
Sous's Avatar
Sous
FTE Leadership Emeritus
Veteran: Air Force
Community Builder
Top Answer: 1
Top Answer: 3
Joined: May 2014
Posts: 27,353
Likes: 5,946
From: Lake Hartwell, GA
FTE Emeritus
The PCM has power even if you pull the fuse?

Can you see any non-OEM wiring like for accessories or lights or anything that might be suspect?

Is this a new to you vehicle?

Did the problem just occur or dud it show up after servicing or something else happened?
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
mutantsquirl
1999 - 2016 Super Duty
15
Feb 22, 2023 11:32 PM
RBerry9511
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
11
Feb 7, 2020 04:31 PM
afonda
1999 - 2016 Super Duty
7
Apr 10, 2018 06:39 PM
hobbyman
1983 - 2012 Ranger & B-Series
6
Aug 4, 2015 03:39 PM
Rory_Johnson
Electrical Systems/Wiring
3
Dec 25, 2005 09:47 PM




All times are GMT -5. The time now is 04:10 PM.

story-0
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-1
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-2
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-3
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
story-4
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-5
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE
story-6
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-7
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-8
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-9
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE