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2017 Porsche 911 — car died once at a light and restarted immediately — anyone dealt with this recently?

CamberSeller267Community StarterJan 18, 20262017 Porsche 911 Carrera SWashington DC
2017 Porsche 911 Carrera S, about 63,500 miles. The engine shut off at a stop once, restarted right away, and has been normal since. No warning stayed on. What data or checks would you prioritize before trusting it on a long trip? I am in Washington DC.
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4 replies

RoadNerdCommunity StarterCommunity StarterJan 18, 2026permalink
I'd want a measurement, not a hunch. Loaded-suspension checks on the 2017 Porsche 911 catch play that a wheels-hanging inspection misses. Save the big job until that test fails. Keep sale price, fees, and rate as three different conversations. I'm keeping receipts and dates in one folder.
WeekendEnthusiast75Community StarterCommunity StarterJan 19, 2026permalink
This is usually cheaper to test than to guess. If a shop can't duplicate it on the 2017 Porsche 911, bring a video plus freeze-frame data, not just a story. That's the branch I'd chase this week. Post the numbers (or the code) and people can get more specific. Cold start is when I can actually reproduce it.
NoMarkupGarage716Community StarterCommunity StarterJan 19, 2026permalink
I'd want a measurement, not a hunch. Two 2017 Porsche 911s can feel identical and have different causes, so measure before you copy someone else's repair. Save the big job until that test fails. Was this after sitting overnight? I'd rather be boring and correct. This is me being the wet blanket on purpose.
CommuterWrench707Community StarterCommunity StarterJan 19, 2026permalink
This is usually cheaper to test than to guess. Swap the cheap/easy piece first on the 2017 Porsche 911 and see if the fault moves. Save the big job until that test fails. This is from a 2017 Porsche 911 in Washington DC with 63,500 miles. If you share a photo of the worksheet, easier to sanity-check. Parking it somewhere I can hear it better next time.
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