Welcome to 911UK
The only place for Porsche, 911uk is the definitive enthusiast and resource site for the Porsche 911.
Registration is fast, simple and absolutely free, so join up today for full access to the site and benefit from latest member offers.

Porsche Classifieds
Sell Your Porsche on 911uk
Create a Free Classified Advert
Search Ads
Classified Adverts FAQ
Trade Classified Information
Buyer & Seller Fraud Protection
Consumer Rights Act
Pre Purchase Inspection (PPI)
Porsche Car Sourcing
Porsche Cars Wanted
Official Porsche Centre Reviews
Model
Stock
Porsche 911
992 : 2019- 1
991 : 2011-2019 0
997 : 2004-2012 1
996 : 1997-2005 31
993 : 1993-1998 5
964 : 1989-1993 2
Carrera 3.2 : 1983-1989 3
Carrera SC : 1977-1983 1
930 Turbo : 1975-1989 0
Early 911 : 1964-1977 0
Porsche Other Models
Classic : 1950-1965 0
Boxster : 1997- 22
Cayman : 2005- 14
Cayenne : 2003- 2
Macan : 2014- 2
Panamera : 2009- 1
912-914-924-928-944-968 1
959 - CarreraGT - RaceCar 0
Car Parts For Sale & Wanted
Other Items For Sale & Wanted
Wheels Tyres For Sale & Wanted
Number Plates For Sale Wanted

Porsche Services
Porsche Body Shop Repair
Paint Protection & Wrapping
Porsche Classic Insurance
Porsche Classic Parts
Porsche Classic Restoration
Porsche Design Collection
Porsche Engine Gearbox Rebuild
Porsche Heritage & History
Porsche News
Porsche Picture Gallery
Win a New Porsche 911

Porsche Parts
Body Parts, Body Styling
Brakes, Clearance
Electrical, Exhausts
Engine Cooling, Engine Electrical
Engine Rebuild, Heating Cooling
Interior Incar, Lighting
Rubber Seals, Service Parts
Steering, Suspension
Transmission, Workshop Tools
Early 911, 911 - 930, 928 - 968
964 - 993, 996 - 997, Boxster
Cayman, Cayenne, Panamera

Porsche Model Range
911 [992] 2018-Current
Porsche 911 [992]
911 [991] 2011-2019
Porsche 911 [991]
911 [997] 2004-2012
Porsche 911 [997]
911 [GT] GT1-GT2-GT3
Porsche 911 [GT]
911 [996] 1997-2005
Porsche 911 [996]
911 [993] 1993-1998
Porsche 911 [993]
911 [RS] RS-RSR
Porsche 911 [RS]
911 [964] 1989-1993
Porsche 911 [964]
911 3.2 1983-1989
Porsche 911 3.2 Carrera
911 SC 1977-1983
Porsche 911 SC
911 [Early] 1964-1977
Porsche 911 [Early]
Boxster & Cayman
Porsche Boxster & Cayman
Cayenne & Panamera
Porsche Cayenne & Panamera

911uk Site Partners

Post new topic   Reply to topic
Author Message
77szymon
Spa-Francorchamps


Joined: 14 Mar 2018
Posts: 298
Location: UK

2003 Porsche 996 Carrera 4S

PostPosted: Fri Jul 12, 2019 7:46 pm    Post subject: HELP - with massive fuel leak Reply with quote

Hi all,

so long story short..... I was no too busy and preparing myself on holiday as I'm off on Wednesday evening from Hull to Rotherham in my Porsche, today I discover massive oil/fuel mix on my drive way..... hey nothing to worry about!?

My hands just refuse to deal with it..... tomorrow early morning I will put this apart but perhaps some of you got same issue so worth to ask before I strip entire front... what that could be.... by the way it explains why I was smell fuel.


It is not visible on picture but leak starts from top could be leak on sending unit?
_________________
2003 Porsche 911 996 c4s
1988 BMW 635csi Highline - waiting for full restoration
1999 BMW e36 328i Cabrio - still not finished project.....
2011 Mercedes S350L
2004 Audi a2 1.4 tdi - I can't stress enough how good these cars are
2012 Mercedes C220 cdi Estate AMG Sport Plus Pack - wife
 



porsche.jpg
 Description:
 Filesize:  396.95 KB
 Viewed:  912 Time(s)

porsche.jpg



porsche fuel.jpg
 Description:
 Filesize:  103.59 KB
 Viewed:  912 Time(s)

porsche fuel.jpg



porsche fuel 1.jpg
 Description:
 Filesize:  186.82 KB
 Viewed:  912 Time(s)

porsche fuel 1.jpg



porsche fuel 2.jpg
 Description:
 Filesize:  124.83 KB
 Viewed:  912 Time(s)

porsche fuel 2.jpg


  
View user's profile Send private message
   
Paynewright
Monza


Joined: 17 Apr 2018
Posts: 200
Location: Nr Lutterworth Leics


PostPosted: Fri Jul 12, 2019 10:23 pm    Post subject: Reply with quote

Pretty sure I read something can crack on the fuel sender / pump unit. This is located under the battery. Removal of the battery tray reveals a puddle of fuel on the top of said unit. Do some googling!

Just be careful as electrical sparks and fuel fumes dont mix well!!
 
  
View user's profile Send private message
   
Hamblemark
Newbie


Joined: 22 Mar 2014
Posts: 43
Location: Southampton


PostPosted: Sat Jul 13, 2019 7:44 am    Post subject: Reply with quote

The fuel sender unit is one of the things that was checked when I had my fuel smell issues (it wasn't that, but I read that the tops can split and then it leaks when the system is pressurised).

But your issue looks like a system leak as there appears to be a leak without the system being 'on' as it were. Damp areas on the car and on the road are never great to see. Not sure about the oil either - hopefully just road residue from the underside dissolved off perhaps?

Feel for you, and I hope it isn't too serious.

Goes without saying, whatever you do be careful - and I certainly wouldn't drive it with such an obvious leak.
_________________
996 C4S - Polar Silver
 
  
View user's profile Send private message
   
Alex
Le Mans
Le Mans


Joined: 06 Mar 2014
Posts: 16540
Location: The Ribble Valley, Lancashire

2000 Porsche 996 Carrera 4

PostPosted: Sat Jul 13, 2019 7:56 am    Post subject: Re: HELP - with massive fuel leak Reply with quote

77szymon wrote:
I was no too busy and preparing myself on holiday as I'm off on Wednesday evening from Hull to Rotherham in my Porsche,


Hope you get it sorted mate. Enjoy your holiday wack
_________________
2000 Manual 996 C4 Arctic Silver Convertible


 
  
View user's profile Send private message
   
77szymon
Spa-Francorchamps


Joined: 14 Mar 2018
Posts: 298
Location: UK

2003 Porsche 996 Carrera 4S

PostPosted: Sat Jul 13, 2019 8:29 am    Post subject: Reply with quote

it is look like filler pipe is leaking, can I do it without removing front suspension?
_________________
2003 Porsche 911 996 c4s
1988 BMW 635csi Highline - waiting for full restoration
1999 BMW e36 328i Cabrio - still not finished project.....
2011 Mercedes S350L
2004 Audi a2 1.4 tdi - I can't stress enough how good these cars are
2012 Mercedes C220 cdi Estate AMG Sport Plus Pack - wife
 



2019-07-13 09.23.18.jpg
 Description:
 Filesize:  621.97 KB
 Viewed:  755 Time(s)

2019-07-13 09.23.18.jpg



2019-07-13 09.23.54.jpg
 Description:
 Filesize:  242.34 KB
 Viewed:  755 Time(s)

2019-07-13 09.23.54.jpg



2019-07-13 09.24.27.jpg
 Description:
 Filesize:  218.92 KB
 Viewed:  755 Time(s)

2019-07-13 09.24.27.jpg


  
View user's profile Send private message
   
Alex
Le Mans
Le Mans


Joined: 06 Mar 2014
Posts: 16540
Location: The Ribble Valley, Lancashire

2000 Porsche 996 Carrera 4

PostPosted: Sat Jul 13, 2019 9:05 am    Post subject: Reply with quote

I think so. I removed part of my filler pipe to do the long aircon pipe. Once you remove your wheel liner you have access.
_________________
2000 Manual 996 C4 Arctic Silver Convertible


 
  
View user's profile Send private message
   
infrasilver
Fast & Furious
Fast & Furious


Joined: 04 Oct 2010
Posts: 8329
Location: East Midlands

2001 Porsche 996 Targa

PostPosted: Sat Jul 13, 2019 10:36 am    Post subject: Reply with quote

I can't understand why it would be leaking there unless the tank was so full it was halfway up the filler tube too, especially if it leaking when stood overnight?

As Alex says it's reasonably easy to get get good access to the filler tube area by removing the wheel arch liner.

I can only think its coming from a connector on the valve above and leaking down, but again without pressure I can't see that?
_________________
http://euroroadtripper.blogspot.co.uk/

 
  
View user's profile Send private message Visit poster's website
   
77szymon
Spa-Francorchamps


Joined: 14 Mar 2018
Posts: 298
Location: UK

2003 Porsche 996 Carrera 4S

PostPosted: Sat Jul 13, 2019 1:54 pm    Post subject: Reply with quote

ok, all 3 pictures are done without liner, hard to see on pictures but aluminium filler pipe "darker colour" is covered in fuel, it is not leaking now but still smell with fuel around car but no surprise fuel still is visible on covers,

I'm leave it for now, just can't fill up to max, I think seal around filler pipe and tank is broken I can barely see some fuel on it, but then... how come fuel is on pipe in higher place then end in tank, could be fuel in pipe and pipe have some hole in it "corosion"?!

Also this must have somthing to do with it... I fill up car with 20 litres only "tank was empty" jump in car and fuel gauge was in same place as before showing empty....so I decide to fill up as normal to full and gauge restart itself showing full tank and working normal, but perhaps something get blocked?! Dont know

I can't remove pipe from tank I need access from under car ….. and another 2 hands perhaps, so my plan is do it on holiday as I have access to proper garage.

Just for more information pipe from start is nice and clean up to hole in chassis where you can see on pictures some corrosion and dirt is around, I did blow through all brether pipes and valves without any problem so it is look like all working as should also no leak or fuel around it.


Now I'm not sure how to remove filler pipe from tank, google it and youtube it nothnig it is look like I will be first to post some info about it.


I think I know person who done it, hope he will put some info about DIY how to tear out pipe from tank Laughing
_________________
2003 Porsche 911 996 c4s
1988 BMW 635csi Highline - waiting for full restoration
1999 BMW e36 328i Cabrio - still not finished project.....
2011 Mercedes S350L
2004 Audi a2 1.4 tdi - I can't stress enough how good these cars are
2012 Mercedes C220 cdi Estate AMG Sport Plus Pack - wife
 



162.jpg
 Description:
fuel
 Filesize:  74.67 KB
 Viewed:  657 Time(s)

162.jpg


  
View user's profile Send private message
   
infrasilver
Fast & Furious
Fast & Furious


Joined: 04 Oct 2010
Posts: 8329
Location: East Midlands

2001 Porsche 996 Targa

PostPosted: Sat Jul 13, 2019 2:13 pm    Post subject: Reply with quote

Studying your picture a bit closer and it look like the leak is within the chassis area so could actually be fuel leaking from the vent pipe or even from the top of the tank and this is the point it just happens to drip onto the filler tube.

The filler tube is easy to remove and as you do have the liner off already its even easier. You will need to remove the carbon canister (gives you more room) and all the connectors to it. Remove the valve at the top of the filler and earth connection if you also have this.

Inside the fuel flap area you will need to undo the bolt holding the fuel cap strap in place, this is also the bolt that holds the filler tube to the car.

Once everything is off and out of the way you can just twist/wiggle the filler tube out through the filler flap. Just be careful as there is a flap at the end of the filler tube (inside the tank) that stops splash back when cornering, this can sometimes get dislodged.

There are varying designs of this system over the years so there may be some slight differences to what I have said above.

As you probably already know the C4 tank doesn't show fuel unless you get a certain mount of fuel in it to register the sender.
_________________
http://euroroadtripper.blogspot.co.uk/

 
  
View user's profile Send private message Visit poster's website
   
Display posts from previous:   
Post new topic   Reply to topic   All times are GMT - 12 Hours
Page 1 of 1

 
Jump to:  

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You can attach files in this forum
You can download files in this forum
You cannot post calendar events in this forum