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911uk

Car spits fuel back out when filling

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8 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHCar spits fuel back out when filling

Reported or suspected cause

more serious

Reported cause

No successful repair reported for this finding.

1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context

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.

Discussions that report identifying a cause
1

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.

Reported cause

But it sounds like your issue is more serious, so I'm not very hopeful that will help.

Car spits fuel back out when filling
Frequently discussed work

Replace cartridge

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
1

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.

Performed · outcome unconfirmed · Original poster

The cartridge has been replaced, the hoses plugged in in every combination possible and still no solution.

Car spits fuel back out when filling
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Leading evidence: 'more serious' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'more serious' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Replace cartridge' (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.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

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1 matching discussions · 8 captured posts examined · 0 partial discussions

Compare 2 other evidence results

Replace cartridge

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

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.

Discussions that performed work without a confirmed outcome
1

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.

Performed · outcome unconfirmed · Original poster

The cartridge has been replaced, the hoses plugged in in every combination possible and still no solution.

Car spits fuel back out when filling

Use 2 years ago

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

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.

Discussions that performed work without a confirmed outcome
1

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.

Performed · outcome unconfirmed · Original poster

I've had this problem with my 2002 C4S since I bought used, 2 years ago.

Car spits fuel back out when filling
Frequently discussed actions (2)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Replace cartridge

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
1

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.

Performed · outcome unconfirmed · Original poster

The cartridge has been replaced, the hoses plugged in in every combination possible and still no solution.

Car spits fuel back out when filling

Use 2 years ago

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
1

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.

Performed · outcome unconfirmed · Original poster

I've had this problem with my 2002 C4S since I bought used, 2 years ago.

Car spits fuel back out when filling
Reported and suspected causes (1)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

more serious

No successful repair reported for this finding.

1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that report identifying a cause
1

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.

Reported cause

But it sounds like your issue is more serious, so I'm not very hopeful that will help.

Car spits fuel back out when filling
Coverage and how to read this overview

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.

8 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • 911uk: 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: 20261026T165820Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I've had this problem with my 2002 C4S since I bought used, 2 years ago. Neither the dealer nor my mechanic have been able to figure it out. The cartridge has been replaced, the hoses plugged in in every combination possible and still no solution. Has anyone had any experience with a similar situation?

POST 2Original post

I noticed that if i use the pump in the normal pipe down way it keeps shutting off with the back pressure so i invert the nozzle and that stops the shut off system kicking in Rob

POST 3Original post

Yep - Have the exact same issue. I bought mine 3 months ago and the previous owner had covered just 100 miles in a year. I put it down to lack if use and guessed it was an air lock that would sort itself out. It sounds exactly the same as yours in that, it doesn't just cut off but covers you with fuel. Most of the pumps I attend time out after 5 mins and I can squeeze £30 in £1 intervals!! (losing about £5 on the floor) I hope there is a solution! Jason

POST 4 / ORIGINAL POSTEROriginal post

It certainly is an odd thing. I will try the inverted nozzle technique, however I think there must be a solution that will allow normal filling!

POST 5Original post

Have never had mine spit fuel out, but do sometime have trouble with the pump cut off. (To be fair, have had this on several cars) I've found that nozzle drawn slightly back* rather than all the way in, and starting with a slow flow, then building up speed once the flow has got established, gives the least problems. But it sounds like your issue is more serious, so I'm not very hopeful that will help. H * I mean like 2 or 3 inches, but still well inside the filler neck. I'm not suggesting you stand back three feet and take aim like in the gents at closing time!! :floor:

POST 6Original post

I've not experienced this but could it be a blocked overflow/air outlet pipe? For the fuel to go in it must displace air in the tank which must have an outlet somewhere. If this is blocked, air will try to force it's way back out past the pump nozzle inevitably bringing fuel with it. Sorry if I'm stating the blindingly obvious here!

POST 7 / ORIGINAL POSTEROriginal post

Well. . . the vapors are evacuated to the canister which recycles and reignites them if I understand correctly. There is no evacuation of air or vapors directly into the atmosphere . I tried the "inverted nozzle" technique and it did speed up the filling. . . until the car went back to vomiting fuel back again. :wall:

POST 8Original post

I agree, it's gotta be something related to this and the build up of positive pressure within the tank. :dont know:

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