This is topic How to change gas tank filler neck in forum Tech Talk at Northern California Ford Owners  .


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Posted by Billy Bob (Member # 9412) on :
 
I have a gas leak and I'm pretty sure that's where it's coming from I have a 91 notch. I wanted to know the steps to replacing it? Thanks an advance
 
Posted by Blind (Member # 3052) on :
 
unbolt it from the filler door area and side of tank has 1 bolt, pull the filler neck out, swap the gasket on the tank, and replace everything. Quick job but pita.
 
Posted by i (Member # 12534) on :
 
http://youtu.be/wOeqAulc6uM skip to 1:00
 
Posted by MUSTTANGUY (Member # 2251) on :
 
More than likely it is leaking from the rubber grommet where the filler neck enters the gas tank.
This is a VERY common problem on the Mustang from 79-04
place a jack under the tank, loosen the screw for the bracket around the filler neck on the tank, remove both tank straps, lower tank while pulling filler neck out, replace grommet, and reinstall.
 
Posted by Wht86drop (Member # 12104) on :
 
How often do you notice it leaking? As in when you fill up or when you are parked on a hill or when you turn. I remember when my friend would do a donut his grommet was so bad it shot out fuel from there like crazy.
 
Posted by Billy Bob (Member # 9412) on :
 
quote:
Originally posted by Wht86drop:
How often do you notice it leaking? As in when you fill up or when you are parked on a hill or when you turn. I remember when my friend would do a donut his grommet was so bad it shot out fuel from there like crazy.
Only when I put gas in
 
Posted by BRB 50 (Member # 10395) on :
 
It may be the o ring at the fuel pump too. But if its the side grommet, you gotta partially drop the tank and unscrew the 3 gas filler neck bolts, also the one side of the tank bolt. NFJ. No fun job
 
Posted by Billy Bob (Member # 9412) on :
 
Thanks for the help
 
Posted by Wht86drop (Member # 12104) on :
 
It's not too bad just make sure there is little to no gas in it or else you will struggle with the weight
 




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