• Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 V6 Mustang Tech

Fuel Filler Leak

  • Thread starter Thread starter calstang99
  • Start date Start date Sep 19, 2005
C

calstang99

New Member
Sep 19, 2005
12
0
0
Sep 19, 2005
#1
  • Sep 19, 2005
  • #1
I have a 99 V6 mustang with 76K miles.

Recently the fuel tank has begun to leak at a steady pace from the filler hose/tank connection. I was wondering what could have caused this to happen and if it can be fixed without dropping the fuel tank.

Please help!!
 

Lsredy2kstang

Look, I'm special, dammit
Nov 29, 1999
2,543
5
0
Woodstcock, Georgia
Sep 20, 2005
#2
  • Sep 20, 2005
  • #2
Take your inside truck liner out on the passengerside. There is a rubber hose in there that could be leaking. It is the overfill hose that runs to the bottom of the car in case of an overfill.

I would check that first.
 

GTA_V6_Mustang

Active Member
Nov 29, 2004
1,326
3
39
Miami, FL
Sep 20, 2005
#3
  • Sep 20, 2005
  • #3
What part of the filler is it leaking from the part where it goes into the tank or towards the top where u put gas in?
 

timeless2

Vi Veri Veni Versum Vicus Vici
Admin Dude
Nov 29, 1999
1,366
202
154
the Shadow Gallery
Sep 20, 2005
#4
  • Sep 20, 2005
  • #4
Lsredy2kstang said:
Take your inside truck liner out on the passengerside. There is a rubber hose in there that could be leaking. It is the overfill hose that runs to the bottom of the car in case of an overfill.

I would check that first.
Click to expand...


My '95 Cobra had this issue, with the hose rotten, and was allowing freshly filled gas to come into the trunk. For about three fill-ups, I had to put up with gas smell in the interior. It's a weird thing to go wrong, but an easy fix, if that is the problem.

Hope you find the problem and solution!
 
C

calstang99

New Member
Sep 19, 2005
12
0
0
Sep 20, 2005
#5
  • Sep 20, 2005
  • #5
The fuel is leaking out from the connection (rubber gasket) where the filler tube and the gas tank connect. It is not running down from the fuel door. I could see teh fuel leaking out of that point and the fuel was nowhere near anything other than this connection.

Some others on the net have had a similiar problem and they said it was a simple rubber gasket, but still had to drop the gas tank. And, of course, the tank is full. If there are any other possiblities, please let me know.

Thank you.
 

timeless2

Vi Veri Veni Versum Vicus Vici
Admin Dude
Nov 29, 1999
1,366
202
154
the Shadow Gallery
Sep 20, 2005
#6
  • Sep 20, 2005
  • #6
Do you know if all the clamps connecting the filling tube to the tank are tight or if they are still there even?
 

Lsredy2kstang

Look, I'm special, dammit
Nov 29, 1999
2,543
5
0
Woodstcock, Georgia
Sep 20, 2005
#7
  • Sep 20, 2005
  • #7
Actually the screws that hold the filler neck on is inside teh gas door. Try to tighten them down first.

To drop the tank it is not that hard of a problem at all.
 

GTA_V6_Mustang

Active Member
Nov 29, 2004
1,326
3
39
Miami, FL
Sep 25, 2005
#8
  • Sep 25, 2005
  • #8
Yea dropping the tank is no biggy, me and my buddy got it down to 30-50 minutes to drop it and get it back up.
 
You must log in or register to reply here.

Similar threads

C
Fuel 01 mustang coup 3.8 looking for help with finding a schematic , fuel level sensor
  • Chipstack8
  • Sep 7, 2025
  • SN95 V6 Mustang Tech
Replies
2
Views
304
SN95 V6 Mustang Tech Sep 8, 2025
Chipstack8
C
M
01 mustang 3.8 fuel pressure issue
  • Mhaley2006
  • May 29, 2026
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
0
Views
149
1996 - 2004 SN95 Mustang -General/Talk- May 29, 2026
Mhaley2006
M
H
Fuel starvation issues, 91 EFI to carb swap. Car dying after 1-3 gallons used. EFI tank, electric fuel pump, bypass regulator. Dual fed carb
  • hassler
  • Oct 11, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
8
Views
773
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Oct 12, 2025
nickyb
E
Chasing Vacuum leak 99 GT
  • EBNS_2005
  • May 2, 2026
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
2
Views
161
1996 - 2004 SN95 Mustang -General/Talk- May 3, 2026
X-cam34
X
P
Resolved P0457 with intermittent fuel odor in cabin
  • PSKSAM2
  • Jun 3, 2025
  • SN95 4.6L Mustang Tech
Replies
3
Views
474
SN95 4.6L Mustang Tech Jun 5, 2025
Noobz347
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 V6 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?