Help! My 1975 F-100 gas tank has a leak! - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
ยป Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Ford Trucks | Utes | Vans |SUVs | Crossovers > Ford F-100 | Ford F-150 | Ford F-250 | Ford F-350 | Ford Super Duty | Ford Diesel
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto Escrow

Ford F-100 | Ford F-150 | Ford F-250 | Ford F-350 | Ford Super Duty | Ford Diesel Forum for discussion of the Ford F100, F150, F250, F350, Superduty and Diesel trucks.

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 11-01-2003, 06:39   #1 (permalink)
Registered User
 
Join Date: Oct 2003
Posts: 5
frown Help! My 1975 F-100 gas tank has a leak!

I would be very grateful for any and all information that would assist me in removing the old gas tank (nearly full of gas for now anyway) and replacing it with a new one. The truck has 2 tanks - the rear one is the leaky one (the main ?). Rust is not an issue - it only has 28,000 miles on it! Thanks for your help.
Fords Only is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 11-01-2003, 08:12   #2 (permalink)
97 F-150 XL 4x4
 
351w's Avatar
 
Join Date: Jun 2003
Location: PA
Age: 42
Posts: 799
Re: Help! My 1975 F-100 gas tank has a leak!

any idea on why your tank is leaking.
is it a new style plastic tank?
first thing you have to do is get that gas out of there if the leak is that bad that it needs immediate attention.
if not drive it around for a few days as usuall till its empty and keep in mind that when the gauge says its empty you will probably have about 5-6 gal still in it.
removal is pretty simple once it is light enough to move around and hold up while you remove the straps.
you also have to disconnect the hose on the filler neck of the tank and then be careful not to pull out wires that are on top to the sender or pump.
__________________
i would rather push my Ford than drive your Chevy !
351w is offline   Reply With Quote
Old 11-01-2003, 09:35   #3 (permalink)
Registered User
 
Join Date: Oct 2003
Posts: 5
roll Re: Help! My 1975 F-100 gas tank has a leak!

Thanks for the reply 351w! The tanks is original. The tiny hole is just above where the spare tire was hanging - I have no idea what caused the hole. Can you give me detailed info on possible tools needed, possible pitfalls etc. Thanks!
Fords Only is offline   Reply With Quote
Old 11-01-2003, 13:02   #4 (permalink)
97 F-150 XL 4x4
 
351w's Avatar
 
Join Date: Jun 2003
Location: PA
Age: 42
Posts: 799
Re: Help! My 1975 F-100 gas tank has a leak!

i have found it possible to do this job without any special tools as i have had both of my tanks out atleast once if not more.
it is a pretty cut and dry job but it doesnt hurt to have someone there to help lower and raise the tank in and out.
i have used a floor jack before to lower and raise the tank but be aware that if something isnt available to hold the tank it will want to tip off one side or the other as the leftover fuel splashes around inside.

simply disconnect the filler neck hose and get that out of the way.
then start to undo the holding straps and finally start to lower the tank.
when the tank has been lowered enough to gain access to the top simply disconnect the fuel lines and wires.

tips.
1. label each hose as to where you removed it from, so they are put back on the same way.
2. carefully watch the filler neck hose as this tends to be a pain to clear everything if you pinch it hard it will partially collapse the inner vent tube which will not allow you to refill the tank at a high rate of speed (you'll curse that later at the gas pump when it takes 10 min to fill)
i suggest taking as much of the filler neck off as possible before you try to lower the tank to prevent this.
also try to look in the neck as you start to remove it and mentally note where the inner tube is inserted.
you will see the neck is divided into 2 seperate passages.

with any mechanical abilty at all you'll be fine.
its not a hard job to do !
any problems just post back and i hopefully will be able to help out.
__________________
i would rather push my Ford than drive your Chevy !
351w is offline   Reply With Quote
Old 11-03-2003, 05:39   #5 (permalink)
Registered User
 
Join Date: Oct 2003
Posts: 5
Re: Help! My 1975 F-100 gas tank has a leak!

Thanks 351w - you're a huge help. I'm still having problems with the siphoning - I can't get the tube to go in more than 15" or so. Any ideas?
Fords Only is offline   Reply With Quote
Old 11-03-2003, 19:23   #6 (permalink)
 
89F150's Avatar
 
Join Date: May 2003
Location: Albury, NSW
Posts: 1,012
Re: Help! My 1975 F-100 gas tank has a leak!

I dont htink you can siphon, i think theres a theif mechanism thing? If you siphon it can be a b1tch to fill up because you can knock one of the fuel lines off. i know from experience. Can't you just drive around and waste it that way
89F150 is offline   Reply With Quote
Old 11-03-2003, 20:24   #7 (permalink)
97 F-150 XL 4x4
 
351w's Avatar
 
Join Date: Jun 2003
Location: PA
Age: 42
Posts: 799
Re: Help! My 1975 F-100 gas tank has a leak!

well if you are having trouble sticking the hose into the tank either one of 2 things is happening.
1.you are coming up against the metal divider in the neck of the tank.
2.there is a metal spring type hose deterant in the filler neck.
i think that would only allow a couple inches of access.
what you are describing as being 15" in would be about the edge of the tank so your only choices at this point are to use a smaller tube or take the 3 screws out inside the gas cap door and take the filler neck hose off from the back and then you will have direct access to the tank neck.
__________________
i would rather push my Ford than drive your Chevy !
351w is offline   Reply With Quote
Old 11-05-2003, 09:23   #8 (permalink)
Registered User
 
Join Date: Oct 2003
Posts: 5
Re: Help! My 1975 F-100 gas tank has a leak!

Thanks 89F150 and 351w! Unfortunately, the tank is still nearly full and I can't drive it around due to lack of insurance (it's a death/title/license issue). I will try taking the filler neck hose off.
Fords Only is offline   Reply With Quote
Old 11-24-2003, 09:27   #9 (permalink)
Registered User
 
Join Date: Oct 2003
Posts: 5
Re: Help! My 1975 F-100 gas tank has a leak!

Thanks to all who helped! I finally got the right tank and finished the job yesterday.
Fords Only is offline   Reply With Quote
Old 11-24-2003, 18:48   #10 (permalink)
 
89F150's Avatar
 
Join Date: May 2003
Location: Albury, NSW
Posts: 1,012
Re: Help! My 1975 F-100 gas tank has a leak!

nice work
89F150 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Ford Trucks | Utes | Vans |SUVs | Crossovers > Ford F-100 | Ford F-150 | Ford F-250 | Ford F-350 | Ford Super Duty | Ford Diesel



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
U.S.A.:Mazda6 examined for possible leak in fuel tanks Stacy94PGT Mazda Forum 0 10-30-2003 08:31
XR8 oil leak...? ED195KW General Tech 3 06-01-2003 15:57
EA Ghia - Fuel Tank Size ?? Dellboy999 General Tech 17 05-25-2003 20:22
Ford Admits That Crown Vic Failed Crash Test Stacy94PGT Ford Worldwide News 2 03-04-2003 00:19
Fuel tank overflow?? crYnOid General Tech 2 12-20-2002 08:28

Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 13:47.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.