Notices
2004 - 2008 F150 2004, 2005, 2006, 2007 and 2008 Ford F150's with 5.4 V8, 4.6 V8 engine
Sponsored by:
Sponsored by:

Battery light

Thread Tools
 
Search this Thread
 
Old Dec 15, 2022 | 12:37 PM
  #1  
Randy4068's Avatar
Randy4068
Thread Starter
|
5th Gear
Joined: Dec 2022
Posts: 5
Likes: 0
Battery light

I have a 2004 F150 XLT 5.4 Triton, my alternator went out and my truck ran until battery died, I replaced alternator with new not reman, I have charged the battery to full, approximately 5 minutes after I start the truck the battery light comes on and stays on, have had both battery and new alternator tested, both check good, any ideas?

Thanks in advance
 
Reply
Old Dec 15, 2022 | 03:41 PM
  #2  
RLXXI's Avatar
RLXXI
Lead Driver
Community Influencer
Liked
Loved
Community Favorite
Joined: Nov 2020
Posts: 7,128
Likes: 1,945
From: Sportsman's Paradise
Originally Posted by Randy4068
I have a 2004 F150 XLT 5.4 Triton, my alternator went out and my truck ran until battery died, I replaced alternator with new not reman, I have charged the battery to full, approximately 5 minutes after I start the truck the battery light comes on and stays on, have had both battery and new alternator tested, both check good, any ideas?

Thanks in advance
If it's an aftermarket alternator, you found the problem. Get a Motorcraft new or reman alt and that light will go out.
 
Reply
Old Dec 15, 2022 | 04:07 PM
  #3  
projectSHO89's Avatar
projectSHO89
Hotshot
20 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Jan 2004
Posts: 19,760
Likes: 1,079
From: St Louis
any ideas?
You're going to have to actually troubleshoot the issue or keep guessing.


Like RLXXI, I don't have a great deal of confidence in aftermarket alternators until I've tested and verified they're actually good. Have gotten too many duds at the parts stores.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
66with352
1997 - 2003 F150
9
Aug 11, 2024 10:42 PM
Insane451
1997 - 2006 Expedition & Navigator
8
Apr 3, 2014 11:05 AM
erik_bishop
1999 - 2003 7.3L Power Stroke Diesel
7
Feb 18, 2011 11:05 AM
shark1979
Excursion - King of SUVs
3
May 30, 2009 02:03 PM
Phil056
1997 - 2006 Expedition & Navigator
8
May 12, 2004 04:16 PM




All times are GMT -5. The time now is 10:32 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