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

Electrical problem maybe?

Thread Tools
 
Search this Thread
 
Old Jul 26, 2013 | 12:15 AM
  #1  
90'F150's Avatar
90'F150
Thread Starter
|
Junior User
Joined: Apr 2013
Posts: 61
Likes: 0
Electrical problem maybe?

Hey everyone I got a problem with my front tank that's got me a little confused. When have the truck off and on the front tank the gauge will go up to the amount of gas in the tank. Once I turn the key on the gauge drops to empty. If I'm on the rear it'll show how much is in it when it's on and go to empty when it's off like normal. At first I was thinking its a problem with the sending unit but the fact that when the trucks off it'll show how much is in the tank and when on it goes to E I was thinking maybe there are wires backwards somehow? I thought I'd ask first before I just dug into this problem.
 
Reply
Old Jul 26, 2013 | 06:41 AM
  #2  
Bob Gervais's Avatar
Bob Gervais
Posting Guru
Joined: Jan 2004
Posts: 2,403
Likes: 4
From: Charlestown, RI
Originally Posted by 90'F150
Hey everyone I got a problem with my front tank that's got me a little confused. When have the truck off and on the front tank the gauge will go up to the amount of gas in the tank. Once I turn the key on the gauge drops to empty. If I'm on the rear it'll show how much is in it when it's on and go to empty when it's off like normal. At first I was thinking its a problem with the sending unit but the fact that when the trucks off it'll show how much is in the tank and when on it goes to E I was thinking maybe there are wires backwards somehow? I thought I'd ask first before I just dug into this problem.
The front sending unit is not getting grounded correctly. Could be a bad ground wire, either externally or internally.
 
Reply
Old Jul 26, 2013 | 08:31 PM
  #3  
90'F150's Avatar
90'F150
Thread Starter
|
Junior User
Joined: Apr 2013
Posts: 61
Likes: 0
Originally Posted by Bob Gervais
The front sending unit is not getting grounded correctly. Could be a bad ground wire, either externally or internally.
Thanks I'm gonna be taking the bed off to figure this out because I'm going to paint the truck black and want to get between the cab and the bed and what better time than when it's off to check this out.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
KG Excursion
1973 - 1979 F-100 & Larger F-Series Trucks
8
Jun 27, 2014 07:59 AM
1978f-250
1973 - 1979 F-100 & Larger F-Series Trucks
10
Mar 25, 2013 01:56 PM
jbk
1973 - 1979 F-100 & Larger F-Series Trucks
2
Aug 10, 2012 08:08 AM
86F150302
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
8
Jul 4, 2008 11:42 AM
antunez13
Ford Inline Six, 200, 250, 4.9L / 300
3
Dec 10, 2007 06:07 PM




All times are GMT -5. The time now is 09:45 PM.

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