• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

Fuel Leak Help...

  • Thread starter Thread starter tomcamaro97
  • Start date Start date Feb 4, 2016
T

tomcamaro97

Active Member
Jun 17, 2015
43
27
28
Feb 4, 2016
#1
  • Feb 4, 2016
  • #1
so ive got a fuel leak i could use some advice on.., here goes..

ive got an 89 gt and the fuel return line is leaking just infront of the tank, where the flexible hi pressue plastic line clips onto the metal fuel line , so im guessing that metal line has some rust , and the seal is not good, causing said leak.

one of my buddies recommended cutting off the femael plastic fitting and the male metal one as well, and using a metal barb to add more of that high pressue plastic fuel line stuff to mount to the metal line.. just not sure how that would seat to the smooth metal line?? i could flare it and use a hose clamp.. but that seems kinda hokey.

i dont really feel like replacing the whole line for just that fitting.

any thoughts on how to go to a flat metal line from that plastic stuff without that duckbill fuel fitting in place?
 

jrichker

StangNet's favorite TOOL
In Remembrance. Thank you for your contributions
Mar 10, 2000
27,512
2,811
234
Dublin GA
Feb 4, 2016
#2
  • Feb 4, 2016
  • #2
Are you talking about the flex line that runs from the fuel filter to the metal tubing mounted on the car body?
 
T

tomcamaro97

Active Member
Jun 17, 2015
43
27
28
Feb 4, 2016
#3
  • Feb 4, 2016
  • #3
Nope, thats on the pressure line . My leak is on the return line... on my car its got the plastic flex line to metal, right next to the fuel filter.
 
T

tomcamaro97

Active Member
Jun 17, 2015
43
27
28
Feb 8, 2016
#4
  • Feb 8, 2016
  • #4
problem is fixed.. to post this out there for the next guy, i found 2 ways to sovle the problem.. both in the help section of my local parts store.. way one would be a new line with a fitting on the end, then use a std compression fitting to join it to the old line. way two , would be to cut the whole connection off from both sides, use a barb on the plastic stuff, to add more plastic line.. then a special compression fitting that goes metal to plastic..

ultimately my fix was much more simple.... i should have known given everything the previous owner touched was done wrong... he had done work on the gas tank, and he didnt fully seat this connection, so i took it apart, clened it, and fully inserted the line, and no more leak..
 
Reactions: a91what
You must log in or register to reply here.

Similar threads

D
Fuel Erratic Fuel Pressure 1985 GT
  • DienstXIV
  • Jan 14, 2026
  • Fox 5.0 Mustang Tech
Replies
16
Views
627
Fox 5.0 Mustang Tech Jan 16, 2026
AeroCoupe
D
Fuel 1985 GT Fuel Line Diagram
  • DienstXIV
  • Apr 17, 2025
  • Fox 5.0 Mustang Tech
Replies
8
Views
1K
Fox 5.0 Mustang Tech Jul 12, 2025
DienstXIV
D
Fuel 87 5.0 Fuel rail lines
  • Mcmahst
  • Jan 21, 2025
  • Fox 5.0 Mustang Tech
Replies
15
Views
992
Fox 5.0 Mustang Tech Feb 11, 2025
Mcmahst
D
Engine 85 GT Backfires through Carb
  • DienstXIV
  • Oct 3, 2025
  • Fox 5.0 Mustang Tech
Replies
19
Views
585
Fox 5.0 Mustang Tech Oct 7, 2025
85GTStangGuy
A
Resolved Fuel pressure high at 52 new FPR same thing
  • afjLX
  • Dec 28, 2024
  • Fox 5.0 Mustang Tech
  • 3 4 5
Replies
90
Views
3K
Fox 5.0 Mustang Tech Jan 11, 2025
AeroCoupe
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?