GAS TANK WILL NOT FILL...

[Mitch Leland]

The gas tank will not take any gas, I've replaced the 2 solenoids under the head lights, right side.  I think the only thing left is the bleeder valve under the gas fill lid.  Would all  think replacing the bleeder valve will restore my issues with the gas tank.  Wayne's Book, "101 projects" suggest replacing the valve will take care of the problem... What say you..

Thanks.

[judgejon]

There is just too much on this to cover quickly in one answer.  As Loren would say, “the search engine is your friend.”

that said, my similar problem was caused by the wiring to the switch on very top of gas tank.  You have to go down to it by pulling off everything above it, like the battery tray, etc.  Took a few hours to get there, then 5 min to reconnect wires and remove nest of the mice that has chewed wires apart. 
there could be other solutions.  Search away.  Have fun. Good luck. 

[Mitch Leland]

Jon,

 

I have searched away.  There doesn't seem to be any one answer, some say you need to hear a click when the filler neck lid is depressed, others mention a fuse, etc.  I haven't read if there's any way to test the bleeder valve rather than spend another $200.  Even Wayne's book says it's a likely suspect, but nothing about testing before buying.  So when I made this request I was looking for some validation on replacing the bleeder valve.  Oh. I have already taken the car apart to look at the top of the gas tank, all seemed to be in order...

[judgejon]

I don’t really have a knowledgeable answer.  But there are some skilled folks on the forum who might. 
good luck

[DBJoe996]

Fuse E6 - check

Fuel vent valve - replace

Reed Magnetic Switch - replace

Replaced fuel vent valve - now unable to fill gas tank - Rennlist - Porsche Discussion Forums

RENNLIST.COM

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996 Forum - Replaced fuel vent valve - now unable to fill gas tank - Have had a couple of instances of P0422 (minor vapor leak) recently and an occasional fuel smell in the cabin. Replaced the gas cap, however that did not solve the problem. Replaced the fuel vent valve...

 

Edited January 3, 2021 by DBJoe996

[Mitch Leland]

The original problem was leaking gas fumes... I looked at all the plumbing on top of the gas tank and decided the fumes must come from one of the valves.  I replaced the both of the 2 vent solenoid valves (996 605 213 01).  No Sooner that I got the gas valves installed I couldn't fill ANY gas in the tank.  I replaced the vent Bleeder valve (996 201 143 01) and Adapter cable (996 612 511 00). The adapter cable was $20 some dollars so at this point the "while I was there there" kick in. Finally I can fill the gas tank....  Not sure whether it was the bleeder valve or adapter cable, my guess it was the Bleeder valve.  But the stink is still with me...   Grrrr

 

 

 

[judgejon]

Hey, here’s a shout out, you did it !

great job!

[Mitch Leland]

On 1/13/2021 at 12:12 PM, Mitch Leland said:

The original problem was leaking gas fumes... I looked at all the plumbing on top of the gas tank and decided the fumes must come from one of the valves.  I replaced the both of the 2 vent solenoid valves (996 605 213 01).  No Sooner that I got the gas valves installed I couldn't fill ANY gas in the tank.  I replaced the vent Bleeder valve (996 201 143 01) and Adapter cable (996 612 511 00). The adapter cable was $20 some dollars so at this point the "while I was there there" kick in. Finally I can fill the gas tank....  Not sure whether it was the bleeder valve or adapter cable, my guess it was the Bleeder valve.  But the stink is still with me...   Grrrr

 

 

I'd appreciate anyone's ideas other than checking with a match.  I've already thought of that, but for other reasons... LOL

 

On 1/13/2021 at 12:12 PM, Mitch Leland said:

 I still have not found the source of my fuel fume leak.  From just sniffing with your nose I feel like the smell is coming from the underside of the right front fender. And for the most part I believe that I've replaced all the components that relate to this system.  There are co smells emanating from the trunk, zero, nada...I've looked at all the hoses that are with-in the fender well are.  Has anyone use a gas sniffer.  I wonder if it would work since the smell is nearly over whelming.

I'd appreciate anyone's ideas other than checking with a match.  I've already thought of that, but for other reasons... LOL

 

On 1/13/2021 at 12:12 PM, Mitch Leland said:

 

 

[Mitch Leland]

I now think the breach is either in the vent hose item 19 or the connections in the fill pipe, item 11.  I looked at dropping the tank

in Bentley's, but they only have draining and replacing the pump.  I will do a search here.  Is the fill pipe one continuous pipe or are there 

connections as denoted by the accordion rings?  Thanks for any help... 

[judgejon]

Darn.  Sorry.  The tech is over my head.  Good luck.