Notices
1999 - 2016 Super Duty 1999 to 2016 Ford F250, F350, F450 and F550 Super Duty with diesel V8 and gas V8 and V10 engines
Sponsored by:
Sponsored by: Real Truck

Losing Power

Thread Tools
 
Search this Thread
 
Old Dec 18, 2015 | 10:50 AM
  #1  
neilwpitts's Avatar
neilwpitts
Thread Starter
|
New User
Joined: Aug 2015
Posts: 7
Likes: 0
Losing Power

I have a 2003, f-350, 6.0L with a K&N Filter.
While driving the glow plug light comes on and the power is shut down. After a few seconds the power comes back and it won't do it for a while.
No codes.
I replaced all of the glow plugs and wires.
Anyone have this problem or idea on what's causing this?

Thanks
 
Reply
Old Dec 18, 2015 | 12:10 PM
  #2  
texastech_diesel's Avatar
texastech_diesel
Token Redneck
15 Year Member
Liked
Loved
Community Favorite
Joined: Jun 2007
Posts: 9,331
Likes: 341
From: Breckenridge, TX
Club FTE Silver Member

You need to see engine voltage live while it's having the problem, meaning you need a either an OBDII gauge:
https://www.ford-trucks.com/forums/1...eral-info.html

Or a voltage gauge wired to the batteries directly:
DROK® Blue 0.56" 4.5 150V DC Voltage Gauge LED Meter Digital Car Voltmeter Motorcycle Battery Tester 12V/24V - - Amazon.com DROK® Blue 0.56" 4.5 150V DC Voltage Gauge LED Meter Digital Car Voltmeter Motorcycle Battery Tester 12V/24V - - Amazon.com


Check voltage to make sure the PCM isn't dropping when the problem happens. While you're waiting on a way to check voltage running, start checking the engine wiring harnesses for chafing or exposed wires that could be shorting.




I have an iPhone so I use the DashBoss:
DashBoss | A Brain Scan for your Vehicle

If you're an Android user, a Bluetooth OBDII dongle and Torque app is what you need:
Amazon.com: EvZ Mini Interface Works on Android Torque Bluetooth Obd2/obdii Car Diagnostic Scanner (Mini): Automotive Amazon.com: EvZ Mini Interface Works on Android Torque Bluetooth Obd2/obdii Car Diagnostic Scanner (Mini): Automotive
 
Reply
Old Dec 30, 2015 | 04:48 PM
  #3  
neilwpitts's Avatar
neilwpitts
Thread Starter
|
New User
Joined: Aug 2015
Posts: 7
Likes: 0
Had my alternators rebuilt but now the voltage starts off normal but quickly increases to 17+ volts.

Any idea what would cause this?
 
Reply
Old Dec 30, 2015 | 05:35 PM
  #4  
texastech_diesel's Avatar
texastech_diesel
Token Redneck
15 Year Member
Liked
Loved
Community Favorite
Joined: Jun 2007
Posts: 9,331
Likes: 341
From: Breckenridge, TX
Club FTE Silver Member

Your truck came with dual alts? Either a bad rebuild and the voltage regulator is messed up, or something in the PCM isn't right in regards to the dual setup.

I don't know exactly how the dual system is controlled, so to get a better answer you can either start a new thread in the 6.0L engine forum, or ask a moderator to move your thread there:
6.0L Power Stroke Diesel - Ford Truck Enthusiasts Forums
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
redraider25
6.0L Power Stroke Diesel
9
Jun 30, 2016 10:28 AM
tommyl
1999 - 2003 7.3L Power Stroke Diesel
11
Apr 19, 2013 08:58 PM
73stang
6.0L Power Stroke Diesel
11
Jul 18, 2011 12:05 AM
jg96powerstroker
1994.5 - 1997 7.3L Power Stroke Diesel
15
Dec 21, 2010 07:50 PM
DanaB
1999 - 2003 7.3L Power Stroke Diesel
6
Jan 3, 2005 12:36 PM




All times are GMT -5. The time now is 07:15 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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
story-7
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!

Slideshow: Ranking the 5 things owners love about their Super Duty and 5 things they don't

By Joe Kucinski | 2026-04-29 16:36:49


VIEW MORE
story-8
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!

Slideshow: Ranking all 12 Ford truck engines available in 2026.

By Michael S. Palmer | 2026-04-22 13:32:20


VIEW MORE
story-9
The Best F-150 Deal of Every Trim Level (XL through Raptor)

Slideshow: The best Ford F-150 deal for every trim level (XL through Raptor)

By Joe Kucinski | 2026-04-21 15:59:01


VIEW MORE