Notices
1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Computer retaining nut/bolt spinning

Thread Tools
 
Search this Thread
 
Old Dec 26, 2021 | 04:14 PM
  #1  
foresixtee's Avatar
foresixtee
Thread Starter
|
Mountain Pass
Joined: Jul 2021
Posts: 193
Likes: 38
Computer retaining nut/bolt spinning

Hello. Just purchased a 94 F-350 with a 460 a few days ago. Wanted to make sure the computer was not damaged by any leaking caps, but when I went to take it out one of the two retaining bolts started spinning leaving me unable to get the nut off. How can I fix this? I cannot find the other side of the bokt inside the cab.
 
Reply
Old Dec 27, 2021 | 08:08 AM
  #2  
Negative Covfefe's Avatar
Negative Covfefe
Mountain Pass
Joined: Aug 2019
Posts: 161
Likes: 8
First of all, this will be a huge pain, I think. Here's what I would do:
Take a flathead screwdriver and press it into the bolt threads from the side to give resistence against it spinning. If the nut is too close to the firewall to get the screwdriver behind it, put the screwdriver on the far end of the stud and use a crescent wrench to loosen the nut until there is room to put the flathead behind the nut.
 
Reply
Old Dec 27, 2021 | 09:07 AM
  #3  
foresixtee's Avatar
foresixtee
Thread Starter
|
Mountain Pass
Joined: Jul 2021
Posts: 193
Likes: 38
Originally Posted by Negative Covfefe
First of all, this will be a huge pain, I think. Here's what I would do:
Take a flathead screwdriver and press it into the bolt threads from the side to give resistence against it spinning. If the nut is too close to the firewall to get the screwdriver behind it, put the screwdriver on the far end of the stud and use a crescent wrench to loosen the nut until there is room to put the flathead behind the nut.
It's 90% of the way off. I'm going to try and see if I can find where the bolt goes in on the inside. If it's where I think it is I can just replace it.
 
Reply
Old Dec 27, 2021 | 12:54 PM
  #4  
Scndsin's Avatar
Scndsin
FTE Chapter Leader
20 Year Member
Liked
Loved
Community Favorite
Joined: May 2006
Posts: 12,332
Likes: 1,308
From: Central Mississippi
Club FTE Silver Member

The bolt is a part of a metal cage for the ECU & a completely separate assembly from the firewall.

Best you can hope for is to grab some exposed area with locking pliers.
 
Reply
Old Dec 27, 2021 | 05:31 PM
  #5  
torq'ta 5 8's Avatar
torq'ta 5 8
Lead Driver
5 Year Member
Shutterbug
Liked
Loved
Joined: Jan 2019
Posts: 5,070
Likes: 863
From: N.W. Alabama
So its studs spot/tack welded to the metal housing, that slides in the hole cut for PCM? As if it couldn't be in a worse place, contemplating cutting bigger hole in plastic inner liner, or total removal, neither sound attractive, damn the luck! foresixtee
 
Reply
Old Dec 27, 2021 | 10:53 PM
  #6  
Scndsin's Avatar
Scndsin
FTE Chapter Leader
20 Year Member
Liked
Loved
Community Favorite
Joined: May 2006
Posts: 12,332
Likes: 1,308
From: Central Mississippi
Club FTE Silver Member

The cage is able to be pushed into the cab, turned on its side & brought out.

Yes, I believe the studs are welded.
 
Reply
Old Dec 28, 2021 | 03:17 AM
  #7  
TexasGuy001's Avatar
TexasGuy001
Hotshot
20 Year Member
Photogenic
Photoriffic
Liked
Joined: Sep 2001
Posts: 11,958
Likes: 228
If you remove the tire and take the lower rear and sides of the inner fender loose and drop it down, it will be much easier work on it.
 
Reply
Old Dec 28, 2021 | 08:42 AM
  #8  
EllieMae94's Avatar
EllieMae94
Elder User
Joined: Dec 2016
Posts: 854
Likes: 39
From: Mid Missouri
I had this happen to me and it is a total nightmare. Somebody overtightened that nut in the past and stripped it. There’s no removing the connector from the computer without breaking it and using a different computer. This happened to me but getting a new computer was not an option as this happened to my aftermarket Pimpxshift ECU. All 60 male pins had to be soldered onto a spare. Good luck, but you’re better off leaving it as-is.
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Top 10 Ford Truck Tragedies

 Joe Kucinski
story-1

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

 Brett Foote
story-2

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

 Michael S. Palmer
story-3

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-4

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-5

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
story-6

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

 Michael S. Palmer
story-7

10 Most Surprising 2026 Ford Truck Features!

 Joe Kucinski
story-8

Top 10 Ford Trucks Coming to Mecum Indy 2026

 Brett Foote
story-9

5 Best / 5 Worst Ford Truck Wheels of All Time

 Joe Kucinski
Old Dec 28, 2021 | 01:26 PM
  #9  
Scndsin's Avatar
Scndsin
FTE Chapter Leader
20 Year Member
Liked
Loved
Community Favorite
Joined: May 2006
Posts: 12,332
Likes: 1,308
From: Central Mississippi
Club FTE Silver Member

I think's not having connector issue, but the one of 2 ECU seal/retainer studs.
 
Reply
Old Dec 28, 2021 | 01:41 PM
  #10  
foresixtee's Avatar
foresixtee
Thread Starter
|
Mountain Pass
Joined: Jul 2021
Posts: 193
Likes: 38
Originally Posted by torq'ta 5 8
So its studs spot/tack welded to the metal housing, that slides in the hole cut for PCM? As if it couldn't be in a worse place, contemplating cutting bigger hole in plastic inner liner, or total removal, neither sound attractive, damn the luck! foresixtee
the liner is out already
 
Reply
Old Dec 28, 2021 | 01:43 PM
  #11  
foresixtee's Avatar
foresixtee
Thread Starter
|
Mountain Pass
Joined: Jul 2021
Posts: 193
Likes: 38
Think I know the solution. Have to cut the remaining stud off so it's flush with the nut, then drill out out so the nut comes off and the day is saved.
 
Reply
Old Dec 29, 2021 | 02:50 PM
  #12  
foresixtee's Avatar
foresixtee
Thread Starter
|
Mountain Pass
Joined: Jul 2021
Posts: 193
Likes: 38
Drilled it out. Got nut off.

Like I suspected, 3 caps and a resistor toast.
 
Reply
Old Dec 29, 2021 | 03:05 PM
  #13  
torq'ta 5 8's Avatar
torq'ta 5 8
Lead Driver
5 Year Member
Shutterbug
Liked
Loved
Joined: Jan 2019
Posts: 5,070
Likes: 863
From: N.W. Alabama
Glad you got it.
 
Reply
Old Dec 29, 2021 | 09:16 PM
  #14  
foresixtee's Avatar
foresixtee
Thread Starter
|
Mountain Pass
Joined: Jul 2021
Posts: 193
Likes: 38
Originally Posted by torq'ta 5 8
Glad you got it.
Thank you.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
northlandman
1987 - 1996 F150 & Larger F-Series Trucks
5
Mar 26, 2022 04:30 PM
4tl8ford
1948 - 1956 F1, F100 & Larger F-Series Trucks
16
Jul 27, 2009 08:48 PM
93PGT
Manitoba / Saskatchewan Chapter
35
Mar 5, 2008 08:40 AM
MudBugn
1987 - 1996 F150 & Larger F-Series Trucks
1
Apr 9, 2006 12:08 AM




All times are GMT -5. The time now is 10:40 AM.

story-0
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

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


VIEW MORE
story-1
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-2
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-3
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
story-4
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-5
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-6
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-7
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-8
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-9
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE