Planet-9

weird bump feeling from engine...

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10 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHweird bump feeling from engine...

Leading reported evidence

Replace coil pack as well

Performed · outcome unconfirmed

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 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
So I replaced the coil pack as well.
Original post Read captured discussion
weird bump feeling from engine...

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Leading evidence: 'Replace coil pack as well' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'carbon fibre spears' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Replace coil pack as well' (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 · 10 captured posts examined · 1 partial discussions

Compare 4 other evidence results

Run with tpc turbo

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: 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
Ok Guys and Girs, today I changed out the spark plus to NGK Iridium # 2667 - which is one step colder then normal , due to the boost I am running with TPC turbo.
Original post Read captured discussion
weird bump feeling from engine...

carbon fibre spears

Suggestion or failed attempt

No successful repair reported for this finding.

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Identified cause: 1
Suspected cause: 0
Reported fixes

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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
Most likely the carbon fibre spears.
Original post Read captured discussion
weird bump feeling from engine...

Run i feel this bump feeling every every few seconds

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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
When I sit in my seat with the engine running I feel this bump feeling every every few seconds , it is not consistent and sometimes there is two.
Original post Read captured discussion
weird bump feeling from engine...

Run like it should

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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
glad to hear that it is running like it should!
Original post Read captured discussion
weird bump feeling from engine...

Frequently discussed actions (5)

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

Replace coil pack as well

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: 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
So I replaced the coil pack as well.
Original post Read captured discussion
weird bump feeling from engine...

Run i feel this bump feeling every every few seconds

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
When I sit in my seat with the engine running I feel this bump feeling every every few seconds , it is not consistent and sometimes there is two.
Original post Read captured discussion
weird bump feeling from engine...

Run like it should

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
glad to hear that it is running like it should!
Original post Read captured discussion
weird bump feeling from engine...

Run with tpc turbo

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
Ok Guys and Girs, today I changed out the spark plus to NGK Iridium # 2667 - which is one step colder then normal , due to the boost I am running with TPC turbo.
Original post Read captured discussion
weird bump feeling from engine...

Set colder plug

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
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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 will change out the plugs this weekend, with a one setting colder plug.
Original post Read captured discussion
weird bump feeling from engine...

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.

carbon fibre spears

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
Most likely the carbon fibre spears.
Original post Read captured discussion
weird bump feeling from engine...

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.

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

Planet-9: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

1 acknowledgements have no verified action link; they do not establish a repair result.

Outcome without a verified action link
The spark plug was still getting connection, but barely and I am sure not when I needed it most.
Original post Read captured discussion
No unique explicit quoted action; no causal link assigned

Generation: 20261026T183130Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

HI Guys I have a question for you all. When I sit in my seat with the engine running I feel this bump feeling every every few seconds , it is not consistent and sometimes there is two. I can only feel it in the seat. Some times it is worse then others. It has been this way since I have had the car. Could it be something wrong in the engine that is causing some kind of weird fire, or a bent rod? I do not have any lights on, nor have have had any problems with the engine so far. Or could it be something as simple as the light flywheel causing something like this, as I have felt this same feeling in a GT3. Thanks for your help.

POST 2Original post

I think I know what you mean - I have a similar sensation and have put it down to how the engine idles - 13k miles later and its still just fine.

POST 3Original post

ok, great - talked to TPC, said it May be the plugs - so will change this out, and I may have a partially bad O2 sensor :-(

POST 4Original post

I can perform Porsche's most sophisticated diagnostic from right here and give you the official Porsche Engineering answer. It looks like it is the result of modifications you have made. Most likely the carbon fibre spears. Replace them with stock and send the carbon fibre parts to me. I will test them on my car for a couple of years an let you know how it goes. Seriously though, hopefully Frank is OK. ;-)

POST 5Original post

For a split of a second I thought you were serious... and I believed you were God's answer for me (in case of future problems as I lost faith in mechanics and dealers). but you were sarcastic

POST 6Original post

HAHAH !!! Nice... Not to helpful but nice I will change out the plugs this weekend, with a one setting colder plug.

POST 7Original post

it's just the normal engine idling.

POST 8Original post

my 09 CS has done this since day 1 and there are other threads about this....the consensus is that it is normal.....assuming its not excessively rough. When my does it at idle, my RPMs remain stable and don't move.

POST 9Original post

Ok Guys and Girs, today I changed out the spark plus to NGK Iridium # 2667 - which is one step colder then normal , due to the boost I am running with TPC turbo. I found this problem though. on the passenger side of the car, the bolt holding in the coil pack had fallen out ( even though I put blue lock tight on it ) and the other one was loose, so the whole coil pack was coming out. The spark plug was still getting connection, but barely and I am sure not when I needed it most. there was a little black spot on the plug and on the coil pack too where I know it was arcing to get a spark :-( So I replaced the coil pack as well. Started the car, idle is perfect once again. Now time to go drive!

POST 10Original post

glad to hear that it is running like it should! Enjoy!

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