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991.1 Cant fill fuel tank at all! Need help!

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Old 06-23-2018, 02:25 PM
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GodLy
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Exclamation 991.1 Cant fill fuel tank at all! Need help! - Fixed

Hey,

Guys i literally cant fill my gas tank, it feels like something stuck/blocking inside and does not allow fuel to flow inside the tank.. And when i opened tank there was no air (as usually when i open tank i hear how air goes out).
Anyone had such issues?

Car 991.1 Turbo S

Last edited by GodLy; 06-29-2018 at 02:37 PM.
Old 06-23-2018, 09:21 PM
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96redLT4
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Sounds bizarre. Only think I can think of right off is sabotage.

Jim
Old 06-23-2018, 10:15 PM
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drcollie
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You should not get a “whoosh” of air when you remove your fuel cap. If this was happening, it’s indicitive of the fuel tank not being properly vented or the vent system may be blocked. Then the fuel pump causes a pressure build up inside the fuel tank. As the tank empties (its ABS plastic), pressure can continue to build and the fuel tank can implode or collapse inside itself, which would explain why it won’t take on fuel. This of course is speculation, but I have seen this happen before.

As an experiment, leave the car parked, the fuel door open and remove the gas cap. Just let the car sit for a couple of days without starting it. Sometimes the tank will pop back into shape if the pressure is removed. Sometimes not.

Look inside the fuel tank with a flashlight and see if it looks collapsed.

Did you allow a tuner to do any emission mods to the car? If they move things around sometimes it doesn’t get hooked up correctly and the venting is compromised. Or if the car had body work on the front end, etc.



Old 06-23-2018, 11:28 PM
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911-TOUR
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That just isn't right. Get yourself to a qualified shop for investigation. If you are a DIY guy - rent a fiber-optic camera and have a look in the tank.
Old 06-24-2018, 03:17 AM
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GodLy
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Thanks guys for replays and yeah it not just sound bizarre it is bizarre!
Anyway I have booked service at porsche for monday.. lets see what they say about this.

@ drcollie no emissions no body work.
Regarding air, all my past cars did the same sound with air..

p.s i have read that it may be caused by fuse blow..
Old 06-24-2018, 10:23 AM
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911-TOUR
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Please follow up and let us know what they find.
Old 06-24-2018, 10:23 AM
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good2go
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I have a friend that gas tank did implode. But it was a Volvo. Same behavior could not fill gas.
Old 06-24-2018, 11:36 AM
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dflowerz
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Sounds like a dealer should deal with that. Never want to mess around with gas related issues! I will be curious what the dealer finds.
Old 06-25-2018, 12:48 PM
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GodLy
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Update 1

Porsche told me that this part:



Was not holding in top place, it was on the bottom. They told me that they have no idea how it fall down, me either.
They trying to fit it back, if they fail to fit it back, then i will need to change fuel tank to new one.. labor cost ~$1200, plus new fuel tank ~$2500. Glad i found used for ~$400!
Anyway issue is still not confirmed 100%. So i am waiting for next update.

So beware guys as it can happen to anyone!
Old 06-25-2018, 01:55 PM
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Hurricane
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Originally Posted by GodLy
Update 1

Porsche told me that this part:



Was not holding in top place, it was on the bottom. They told me that they have no idea how it fall down, me either.
They trying to fit it back, if they fail to fit it back, then i will need to change fuel tank to new one.. labor cost ~$1200, plus new fuel tank ~$2500. Glad i found used for ~$400!
Anyway issue is still not confirmed 100%. So i am waiting for next update.

So beware guys as it can happen to anyone!
What year is your car? Glad they found the problem!
Old 06-25-2018, 01:58 PM
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rcristobal
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Originally Posted by GodLy
Update 1

Porsche told me that this part:

Was not holding in top place, it was on the bottom. They told me that they have no idea how it fall down, me either.
They trying to fit it back, if they fail to fit it back, then i will need to change fuel tank to new one.. labor cost ~$1200, plus new fuel tank ~$2500. Glad i found used for ~$400!
Anyway issue is still not confirmed 100%. So i am waiting for next update.

So beware guys as it can happen to anyone!
Not covered by CPO or aftermarket warranty?
Old 06-25-2018, 03:11 PM
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GodLy
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Hurricane 2014.12.31 11k miles
rcristobal I think no and i don't have aftermarket warranty
Old 06-25-2018, 03:26 PM
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Hurricane
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Originally Posted by GodLy
Hurricane 2014.12.31 11k miles
rcristobal I think no and i don't have aftermarket warranty
Wow. I would ask to see if Porsche would goodwill at least part of it! Good luck!
Old 06-25-2018, 03:58 PM
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Porsche_nuts
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wondering how the heck something like that could happen

never heard of something like this happening ever before
Old 06-25-2018, 05:14 PM
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Al.Fresco
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Originally Posted by GodLy


Even after replacing that part, it appears the gas would just exit out the side of your car. Your luggage appears to be in jeopardy as well during a tight left turn.
The following 2 users liked this post by Al.Fresco:
d-- (12-11-2021), stevekish1 (01-09-2024)


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