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2004 996TT Turning off under hard braking

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5 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCH2004 996TT Turning off under hard braking

Leading reported evidence

Check loose battery and cables and ground straps

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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.

Discussions that contain suggestions: 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.

Suggestion
I would also check for loose battery and cables and ground straps.
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2004 996TT Turning off under hard braking

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Leading evidence: 'Check loose battery and cables and ground straps' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check loose battery and cables and ground straps' (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 · 5 captured posts examined · 0 partial discussions

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Clean help in anyway

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 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.

Suggestion · Original poster
read about ICV (idle control valves) which could be but I believe this car no longer has an ICV...could a throttle body cleaning help in anyway?
Original post Read captured discussion
2004 996TT Turning off under hard braking

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.

Check loose battery and cables and ground straps

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 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.

Suggestion
I would also check for loose battery and cables and ground straps.
Original post Read captured discussion
2004 996TT Turning off under hard braking

Clean help in anyway

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 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.

Suggestion · Original poster
read about ICV (idle control valves) which could be but I believe this car no longer has an ICV...could a throttle body cleaning help in anyway?
Original post Read captured discussion
2004 996TT Turning off under hard braking

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.

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

Rennlist: 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: 20261026T130754Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi, tried searching for this and could not find a similar case. The car is a 2004 996TT Cabrio with 20k miles that was sitting for a year and just now started being used again. Overall everything works (except the rear wing rise, one of the cylinders leaks) Car idles ok around 1.2k when warming up and then 900 rpm when warm and looks fairly stable. Easy driving is OK BUT i've experienced the following 2 situations: 1. On a steep incline the car shut off out of the blue. started right back up with no issues. 2. accelerated and then went hard on the brakes and the car turned off, again it starts back up but its not normal. read about ICV (idle control valves) which could be but I believe this car no longer has an ICV...could a throttle body cleaning help in anyway? other ideas on a cause for the symptoms? thanks.

POST 2Original post

Maybe ask the folks on the turbo forum, but sounds like fuel starvation. Sediment in the tank from sitting? Clogged up the fuel filter?

POST 3 / ORIGINAL POSTEROriginal post

Quotes source post: 15578570

Thanks, will delete this and repost

POST 4Original post

Gas sitting for a year will turn into varnish.

POST 5Original post

I would also check for loose battery and cables and ground straps.

This is a source reference. Confirm exact model applicability in the original material.