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

Discussion summary

YOUR RESEARCHhow to post

Reported or suspected cause

unacceptable, especially once i start trying

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 · Original poster

I drive a lot of hi-way miles so it isn’t a constant irritant, but then it misses and, well, as fellow Porsche owners you understand that this issue is unacceptable, especially once I start trying to trace the problem.

how to post

Reported cause · Original poster

I drive a lot of hi-way miles so it isn’t a constant irritant, but then it misses and, well, as fellow Porsche owners you understand that this issue is unacceptable, especially once I start trying to trace the problem.

how to post
Frequently discussed work

Replace air filter

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 changed the air filter and changed the oil and filter.

how to post

Performed · outcome unconfirmed · Original poster

I changed the air filter and changed the oil and filter.

how to post
Read full discussion summary

Leading evidence: 'unacceptable, especially once i start trying' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'unacceptable, especially once i start trying' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Replace air filter' (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.

Read captured replies

1 matching discussions · 16 captured posts examined · 0 partial discussions

Compare 4 other evidence results

variocam as well....so many different feels and sounds

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

I too had this question and was it was the Variocam as well....So many different feels and sounds with my 996.2 and its great to be back in the 911

how to post

Replace air filter

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 changed the air filter and changed the oil and filter.

how to post

Performed · outcome unconfirmed · Original poster

I changed the air filter and changed the oil and filter.

how to post

Replace oil and filter

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 changed the air filter and changed the oil and filter.

how to post

Performed · outcome unconfirmed · Original poster

I changed the air filter and changed the oil and filter.

how to post

Use several tanks non-ethanol 92 hoping

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 also used several tanks non-ethanol 92 hoping to eliminate the chance of bad fuel or ethanol.

how to post

Performed · outcome unconfirmed · Original poster

I also used several tanks non-ethanol 92 hoping to eliminate the chance of bad fuel or ethanol.

how to post
Frequently discussed actions (4)

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

Replace air filter

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 changed the air filter and changed the oil and filter.

how to post

Performed · outcome unconfirmed · Original poster

I changed the air filter and changed the oil and filter.

how to post

Replace oil and filter

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 changed the air filter and changed the oil and filter.

how to post

Performed · outcome unconfirmed · Original poster

I changed the air filter and changed the oil and filter.

how to post

Replace plugs and the effort it took, i wanted

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

I just changed the spark plugs and coils, I hear coils rarely go bad but after the stories on changing plugs and the effort it took, I wanted to eliminate that possibility.

how to post

Suggestion · Original poster

I just changed the spark plugs and coils, I hear coils rarely go bad but after the stories on changing plugs and the effort it took, I wanted to eliminate that possibility.

how to post

Use several tanks non-ethanol 92 hoping

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 also used several tanks non-ethanol 92 hoping to eliminate the chance of bad fuel or ethanol.

how to post

Performed · outcome unconfirmed · Original poster

I also used several tanks non-ethanol 92 hoping to eliminate the chance of bad fuel or ethanol.

how to post
Reported and suspected causes (3)

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

unacceptable, especially once i start trying

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 · Original poster

I drive a lot of hi-way miles so it isn’t a constant irritant, but then it misses and, well, as fellow Porsche owners you understand that this issue is unacceptable, especially once I start trying to trace the problem.

how to post

Reported cause · Original poster

I drive a lot of hi-way miles so it isn’t a constant irritant, but then it misses and, well, as fellow Porsche owners you understand that this issue is unacceptable, especially once I start trying to trace the problem.

how to post

variocam as well....so many different feels and sounds

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

I too had this question and was it was the Variocam as well....So many different feels and sounds with my 996.2 and its great to be back in the 911

how to post

variocam at around 3200rpm (+/-)

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

That slight hesitation or surging effect I believe is caused by the VarioCam at around 3200RPM (+/-) under moderate acceleration.

how to post

Outcome qualification: Negation, uncertainty or missing explicit repair resolution overrides the raw extraction signal.

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.

16 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 · 1 adjusted by outcome qualification.

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

Generation: 20261026T144035Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Howdy folks, I have been reading posts here for a while and now I need to post a question of my own. I have a 03 996 cab that I bought 7 years ago. 6 speed manual 3.6, I bought it with 35k miles on it and now has 109k. My local Porsche dealer traced a replacement engine at 25k, probably IMS issue. Now my observation and hopefully some input from you. I noticed a slight miss in the engine when accelerating. I only notice it at between 2600-3400 rpm, in town driving, in 2nd, 3rd or 4th gear. If I am accelerating aggressively the engine goes past that range quickly and I don’t feel it. I do not feel it every time. The miss is a slight hesitation, more felt in the seat of the pants then the pedal. I can’t hear it missing. This has been happening for several tanks of fuel, 92 octane with 10% ethanol and multiple gas stations. I also used several tanks non-ethanol 92 hoping to eliminate the chance of bad fuel or ethanol. I just changed the spark plugs and coils, I hear coils rarely go bad but after the stories on changing plugs and the effort it took, I wanted to eliminate that possibility. The fuel filter is supposed to be lifetime and I didn’t feel like dropping the tank to eliminate that possibility. I changed the air filter and changed the oil and filter. It still misses. The clutch is original and doesn’t slip, you hit the gas she flies. I drive a lot of hi-way miles so it isn’t a constant irritant, but then it misses and, well, as fellow Porsche owners you understand that this issue is unacceptable, especially once I start trying to trace the problem. Any Ideas on where to go next. I am not a mechanic but am capable of doing most maintenance myself.

POST 2Original post

man, good luck, I don't think anyone knows how to post.

POST 3Original post

Quotes source post: 14562168

Looks like you succeeded. What's your question?

POST 4 / ORIGINAL POSTEROriginal post

Howdy folks, I have been reading posts here for a while and now I need to post a question of my own. I have a 03 996 cab that I bought 7 years ago. It bought it with 35k miles on it and now has 109k. My local Porsche dealer traced a replacement engine at 25k, probably IMS issue. Now my observation and hopefully some input from you. I noticed a slight miss in the engine when accelerating. I only notice it at between 2600-3400 rpm, in town driving, in 2nd, 3rd or 4th gear. If I am accelerating aggressively the engine goes past that range quickly and I don’t feel it. The miss is a slight hesitation, more felt in the seat of the pants then the pedal. I can’t hear it missing. This has been happening for several tanks of fuel, 92 octane with 10% ethanol and multiple gas stations. I also used several tanks non-ethanol 92 hoping to eliminate the chance of bad fuel or ethanol. I just changed the spark plugs and coils, I hear coils rarely go bad but after the stories on changing plugs and the effort it took, I wanted to eliminate that possibility. The fuel filter is supposed to be lifetime and I didn’t feel like dropping the tank to eliminate that possibility. I changed the air filter and changed the oil and filter. It still misses. The clutch is original and doesn’t slip, you hit the gas she flies. I drive a lot of hi-way miles so it isn’t a constant irritant, but then it misses and, well, as fellow Porsche owners you understand that this issue is unacceptable, especially once I start trying to trace the problem. Any Ideas on where to go next. I am not a mechanic but am capable of doing most maintenance myself.

POST 5Original post

Get yourself a durametric or anther diagnostic software to see if you can pull any codes

POST 6Original post

That slight hesitation or surging effect I believe is caused by the VarioCam at around 3200RPM (+/-) under moderate acceleration. I can also feel this in my C4S when I am driving 'gently' in traffic.

POST 7Original post

I have a 991.2 Targa 4GTS. I have Xpel coating on all forward facing exterior panels. I want to have it ceramic coated. Quotes I’ve received have been ridiculous. Anyone have a recommendation for CT? Stamford/Greenwich area is best.

POST 8Original post

Quotes source post: 14562923

I too had this question and was it was the Variocam as well....So many different feels and sounds with my 996.2 and its great to be back in the 911

POST 15Original post

Hello All, I currently own a manual '06 911 Carrera S Coupe. I'm beginning to explore the 1970-1989 911 SC market - lots to consider. I'm looking to chat with someone about the particulars of owing an air-cooled Porsche example. & what are the watch outs and what are needed areas of close inspection when purchasing an older 911 SC. Thanks, Vid

POST 16Original post

Get a cam deviation reading done. Chances are VERY likely you have wear on the pads that should be replaced. This is probably 95% of your culprit.

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