Notices
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

Tail Lights Staying On

Thread Tools
 
Search this Thread
 
Old Apr 13, 2012 | 03:45 PM
  #1  
cgi2099's Avatar
cgi2099
Thread Starter
|
Cross-Country
Joined: Apr 2009
Posts: 92
Likes: 0
From: Fort Smith Arkansas
Tail Lights Staying On

I have a 1981 F150 4x4 with a 351M and a C6

Alright guys, i have replaced the headlight switch, and brake light switch but my tail lights stay on after i turn the truck off? Does anyone have any ideas, i had to redue the wiring in the engine due to the harness getting stuck in the fan, is there a wire on the harness that controls just the tail lights and only needs to get power with the key on?

Thank You,
Josh
 
Reply
Old Apr 13, 2012 | 05:39 PM
  #2  
ctubutis's Avatar
ctubutis
Moderator
15 Year Member
Liked
Loved
Community Favorite
Joined: Nov 2007
Posts: 22,415
Likes: 92
From: Denver Metro Area, CO
Club FTE Gold Member
First of all, you should clarify which lights in the back are staying on - the turn signals/emergency flashers/brake lights (all share the same filaments in the bulbs) or the tail (aka parking) lights (different filament).

Assuming this problem started once you did your wiring work up front, my guess is you somehow have power going to a solid brown wire up there when you shouldn't.

This single wire feeds all the side marker lamps, tail lamps, front parking lamps (below the headlights), license plate illumination, and overhead marker lamps (if equipped).
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
johnson2007
1973 - 1979 F-100 & Larger F-Series Trucks
17
Oct 3, 2011 08:24 AM
dorymate88
Electrical Systems/Wiring
8
May 20, 2011 10:10 PM
mmacsek
1973 - 1979 F-100 & Larger F-Series Trucks
4
Feb 7, 2007 08:50 AM
wartz
1999 - 2003 7.3L Power Stroke Diesel
6
Dec 28, 2003 12:26 PM




All times are GMT -5. The time now is 11:27 AM.

story-0
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-1
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-2
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

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


VIEW MORE
story-3
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-4
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-5
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-6
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-7
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-8
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-9
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