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Engine Just Cranks After Fueling (and Hot Start Issues)

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YOUR RESEARCHEngine Just Cranks After Fueling (and Hot Start Issues)

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Replace any parts since

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Performed · outcome unconfirmed

Question; have you replaced any parts since for this issue (ie.

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Engine Just Cranks After Fueling (and Hot Start Issues)
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Leading evidence: 'Replace any parts since' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'random most of the time' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Replace any parts since' (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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random most of the time

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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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Suspected cause

I'm going to try a few of those things, but I really thought mine desreved its own thread because the hot start issue is random most of the time, but everytime I've opened the gas lid and fill up, I have this problem.

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Engine Just Cranks After Fueling (and Hot Start Issues)
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Replace any parts since

No successful repair reported for this finding.

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Reported fixes
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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

Question; have you replaced any parts since for this issue (ie.

Original post Read captured discussion
Engine Just Cranks After Fueling (and Hot Start Issues)
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.

random most of the time

No successful repair reported for this finding.

0
Identified cause
1
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that suspect 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.

Suspected cause

I'm going to try a few of those things, but I really thought mine desreved its own thread because the hot start issue is random most of the time, but everytime I've opened the gas lid and fill up, I have this problem.

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Engine Just Cranks After Fueling (and Hot Start Issues)
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10 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

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Outcome without a verified action link

Just a follow up - I fixed the problem.

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POST 1Original post

All, I've read some threads about hot start issues, but none quite like the issues I'm having. 1) Everytime, immediately after I fuel up, the engine just cranks and won't fire. The only way to get the car started is to floor the gas pedal (throttle wide open) and wait for it to start sputtering up. After a couple revs I can let off the throttle but I'll have a rough idle. After about 60 seconds the idle returns to smooth and everything feels and acts normal. 2) At times, the same problem occurs when I try to refire after a hot start (car has been driven awhile, stop, shut it off, run in a store for a couple minutes, come back out, just cranks). Again, the only way to get the car started is to floor the gas pedal (throttle wide open) and wait for it to start sputtering up. After a couple revs I can let off the throttle but I'll have a rough idle. After about 60 seconds the idle returns to smooth and everything feels and acts normal. Help please!

POST 2Original post

I assume you've seen this recent thread? http://www.planet-9.com/cayman-boxster-tech/44289-starting-problem.html

POST 3Original post

Pete, Yea I saw that thread. I'm going to try a few of those things, but I really thought mine desreved its own thread because the hot start issue is random most of the time, but everytime I've opened the gas lid and fill up, I have this problem.

POST 4Original post

Just a follow up - I fixed the problem. The problem was a stuck (open) gas tank vent valve (a part of the EVAP system). I purchased the part from Auto Atlanta and installed it myself. Part number is: 98711012801 Auto Atlanta - Porsche Parts and Accessories

POST 5Original post

How did you find it? Diagnosed by a shop or yourself? It certainly would have been the first place I would have looked given you specifically mentioned after filling up every time it is a problem and only occasionally teh rest of teh time after a stop and restart. Glad you got it fixed and hope it was easy.

POST 6Original post

Wow. Trying to remember here. I can't believe that part is $500 now. I think I paid $75 for it! Anyway, easy to install (as I can remember). Here's the quick fix: don't shut your car off while you're refueling. I know they say that's a no-no but your with your engine running, it'll burn the excess fumes from the stuck open valve.

POST 7Original post

interesting, i found this one: https://www.ecstuning.com/b-genuine...cC9BRC2v5rjyvSbhWASJACKkjDzfORh4SG54rYhY67oHUA-7LcOuZ-9bvZJa2zEZKRFpxoCFNrw_wcB granted it's a 996 part number, but it's more than half the price of the part number you mentioned, they look the same to me and the link above says it fits 'ALL' Porsche, hmmmm

POST 8Original post

Thanks for the tips here. I had the same problem with my 987 Cayman yesterday, could not start after fuelling up. Did some research and came across this forum and tried a few hours later. So I kept my foot on the brake pedal, floored the accelerator pedal, cranked and it started immediately without any spluttering.

POST 9Original post

My 987.1 CS just started doing this as of my last 2 fuelings. I dont overfill. Today I only filled to 3/4 of a tank. No start up. I did the gas pedal to the floor and it cranked, sputtered a little and smoothed out in 30 secconds or so. Question; have you replaced any parts since for this issue (ie. fuel vent line)?

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