5 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHHow do I drain my fuel tank?
Leading reported evidence
Run engine until it was completely dry
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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Discussions that performed work without a confirmed outcome
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Performed · outcome unconfirmed · Original poster
Thanks, I managed to siphon the fuel out following your instructions, then ran the engine until it was completely dry.
Leading evidence: 'Run engine until it was completely dry' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Disconnect fuel filter' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Suggestion
Jump the fuel pump relay after disconnecting the fuel filter.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
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Suggestion · Original poster
Hi, I recently noticed my 2000 996 C2 cab had developed a missfire, thinking back to its last fuel stop, I remembered finding it very difficult to fill without the pump cutting out.
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion · Original poster
Hi, I recently noticed my 2000 996 C2 cab had developed a missfire, thinking back to its last fuel stop, I remembered finding it very difficult to fill without the pump cutting out.
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
5 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Pelican Parts: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261026T113718Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hi, I recently noticed my 2000 996 C2 cab had developed a missfire, thinking back to its last fuel stop, I remembered finding it very difficult to fill without the pump cutting out. The following week I noticed the petrol station was closed to have new tanks installed. I spoke to a colleague who lives in near the petrol staion who told me that there were rumours that the previous tanks had been contaminated with water.
I have tried fuel additives to absorb the water but no joy. Theres an anti syphon valve so I can't suck the fuel up the filler neck & I've tried accessing the fuel pipe underneath, where it enters the filter, but there seems to be a some kind of restriction preventing me from syphoning.
Any ideas gratefully received
Methanol will absorb the water.
The only way I can think of it drain the tank is to do one of the following:
Remove the battery, battery tray, and then the fuel tank sender and siphon the fuel out that way.
Or
Jump the fuel pump relay after disconnecting the fuel filter. This is difficult as the fuel filter is under the car, in the center tunnel.
I would suggest trying the methanol first.
AFJ
Thanks, I managed to siphon the fuel out following your instructions, then ran the engine until it was completely dry. After filling up with high octane fuel, I drove the car a little over the weekend & it seemed fine. Unfortunately whilst on the way to work this morning it stuttered again. Not as much as it had done previously but it seemed especially bad when holding the throttle in 2nd gear at about 3-400 RPM. It is fine under hard acceleration and when ticking over. Could there be a trace of water in the filter or somewhere else in the system or have I been barking up the wrong tree?!!!
IM having some issues with this draining the gas tank project. One I had to change the filter out since I couldnt get the water out of the gas. I have the filter off, and jumped according to what Ive seen, but its not pumping anything out. I have the filter completely removed, and taped off the supply line. I also noticed the pic showing the jumper for doing draining under the battery compartment is wrong, just read the two it says to jump, and look at the pic, they jumped the opposite. I did it to match them but nothing happened. Even done it the opposite way and nothing still. Any ideas, also does the key just need to be in 1st click, or 2nd click to actually turn the motor over to drive the fuel, I cant get anything either way. Is there a fail safe if the filter isnt grounded?
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