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

Gas gauge question

Thread Tools
 
Search this Thread
 
Old Jun 28, 2004 | 10:51 AM
  #1  
1987LTDmasta's Avatar
1987LTDmasta
Thread Starter
|
Senior User
Joined: Jul 2003
Posts: 195
Likes: 0
From: Chicago, IL
Gas gauge question

i'm back..

anyway, i i just got done installing the rear tank from an '88 bronco onto my '86 F-150. instead of having the 2 tanks concept, i'm gonna axe the side tank and just keep the extra capacity rear tank.

anyway, i got a dilemma now. aparently, the gas gauge isnt reading right. it reads the tank as just over half full, when there's only about 2.5 gallons of gas ($5.00 of gas @ $2.01/gal)

is there a resistance difference between '86 and '88, or did i screw up on the wiring, or is the float thing bad? i checked the resistance to see if it goes up and down with the float and it read fine.

i had to hack the plugs since they were different, so could it be my fault?


also, the side tank never reads more than just over half a tank when its full, so basiclly when the side tank is full, it reads what the rear tank is reading now at empty.

anyone?

is my gauge bad?
 
Reply
Old Jun 28, 2004 | 09:52 PM
  #2  
1987LTDmasta's Avatar
1987LTDmasta
Thread Starter
|
Senior User
Joined: Jul 2003
Posts: 195
Likes: 0
From: Chicago, IL
i checked the gauge by grounding it out and it zoomed to F.

i also added another $10 of gas and now its reading about 1/2 tank LOWER than what it was...

very odd..
 
Reply
Old Jun 28, 2004 | 10:11 PM
  #3  
Peach's Avatar
Peach
Senior User
Joined: Jun 2004
Posts: 114
Likes: 0
might be the sending unit..happened to me in my 87 f150.
 
Reply
Old Jul 4, 2004 | 10:55 AM
  #4  
1987LTDmasta's Avatar
1987LTDmasta
Thread Starter
|
Senior User
Joined: Jul 2003
Posts: 195
Likes: 0
From: Chicago, IL
figured it out..

it is indeed reading backwards (low resistance at empty, high resistance at full)

i'm going to buy a new sending unit from JCW that cmes with a new gauge. mine wont go past 3/4 unless you tap it.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
fp_5
1973 - 1979 F-100 & Larger F-Series Trucks
7
Oct 24, 2021 12:07 AM
merlynr
Electrical Systems/Wiring
5
Nov 26, 2008 12:38 PM
nflfreak43
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
1
Sep 8, 2008 08:54 PM
cjf5150
1973 - 1979 F-100 & Larger F-Series Trucks
1
Sep 18, 2005 12:34 PM




All times are GMT -5. The time now is 02:36 PM.

story-0
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-05-30 18:33:59


VIEW MORE
story-1
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-2
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-3
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

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


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