please help
Thread Starter
|
New User
Joined: Nov 2012
Posts: 3
Likes: 0
please help
I have a 1999 F-250 with a V-10
The problem I am having is the PCM fuse has failed. This happened while I was driving. I noticed that the volt meter went to zero and then the truck died.
Since the pcm and the fuel pump share a circuit I have eliminated the possibility of the fuel pump causing the problem. After replacing the fuse, as soon as I turn the key to on it fails again
Is it possible that the pcm is bad?
The problem I am having is the PCM fuse has failed. This happened while I was driving. I noticed that the volt meter went to zero and then the truck died.
Since the pcm and the fuel pump share a circuit I have eliminated the possibility of the fuel pump causing the problem. After replacing the fuse, as soon as I turn the key to on it fails again
Is it possible that the pcm is bad?
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,728
Likes: 2,657
From: SE Florida
If you know your way around a DVOM you can check the wiring harness for problems. If it is fine then it probably is the PCM. If you don't have the right tools or knowledge it is probably best to pay a good independent shop to find and fix the problem for you.
Cargo Master
Joined: Sep 2007
Posts: 2,624
Likes: 7
From: OR and UT
He's in NY. If you both have auto or stick transmissions it may work.
Trending Topics
Senior User
Joined: Nov 2009
Posts: 296
Likes: 0
From: Roseville, CA
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
Your approval on my 'no Mopar' avatar is still waiting
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
Likes: 423
From: Long Island USA
Probably the easiest way to diagnose this is to start unplugging things. Disconnect the harness from the PCM and see if the fuse still blows 
If it doesn't that doesn't mean the PCM is necessarily bad, but if it still blows with the PCM out of the loop, that does narrow it down a lot.
If it doesn't that doesn't mean the PCM is necessarily bad, but if it still blows with the PCM out of the loop, that does narrow it down a lot.
Thread
Thread Starter
Forum
Replies
Last Post
buff4
Explorer, Sport Trac, Mountaineer & Aviator
1
Jul 22, 2004 11:42 PM