20 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHPorsche remanufactured engine core charge
Leading reported evidence
Replace under warranty, a front differential
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
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Performed · outcome unconfirmed · Original poster
The following is a list of needed repairs that I consider beyond normal wear and tear; 3 RMS seals replaced under warranty, a front differential replaced at 42k miles, a cracked cylinder liner at 45k miles.
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
Do some research on common engine failures for you car, you will see how the cylinders fail and how you can upgrade them You may get away with just replacing the cylinders.
Leading evidence: 'Replace under warranty, a front differential' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'ways' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Replace cylinders' (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.
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.
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 suspect a cause
1
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Suspected cause
Given the car is located probably a ways from me and is undrivable there's the cost of having it shipped to my house and local Porsche dealer or the trouble of having it delivered to a Porsche dealer in your area and then getting the engine R&R'd and the car back on the road.
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.
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Suggestion
Do some research on common engine failures for you car, you will see how the cylinders fail and how you can upgrade them You may get away with just replacing the cylinders.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Replace cylinders
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
Do some research on common engine failures for you car, you will see how the cylinders fail and how you can upgrade them You may get away with just replacing the cylinders.
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
The following is a list of needed repairs that I consider beyond normal wear and tear; 3 RMS seals replaced under warranty, a front differential replaced at 42k miles, a cracked cylinder liner at 45k miles.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
ways
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
Given the car is located probably a ways from me and is undrivable there's the cost of having it shipped to my house and local Porsche dealer or the trouble of having it delivered to a Porsche dealer in your area and then getting the engine R&R'd and the car back on the road.
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.
20 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: 20261027T005001Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I have a cracked engine cylinder liner on my "03 911 4S and I am considering replacing it with a Porsche remanufactured engine. There is an additional core charge of $3,300 should they determine that the returned core is not useable.
Does anyone know what criteria Porsche uses to determine if the core that is sent back to Porsche qualifies as suitable and not charged the core charge?
Specifically as it may apply to a cracked cylinder liner?
pretty disappointing to read so many failures. You would think porsche knowing how many problems this engine has they would not be bothering you with the type of failure..... that is just nuts. They should have updated the engines for free if you ask me.
I would contact Jake @
http://www.flat6innovations.com/
Do some research on common engine failures for you car, you will see how the cylinders fail and how you can upgrade them You may get away with just replacing the cylinders.
Also look at this
http://www.flat6innovations.com/why.htm
Good luck.
+1 on calling jake at Flat6. Since it doesn't sound like you have had catastrophic engine failure, jake could rebuild your motor with lots of new goodies that a factory reman could only hope for.
In the past Porsche would take just about any core as they would have to document/admit what was wrong with the engine to reject it and they were loath to disclose the real cause of failures.
I might be able to get you a better deal on a new engine as well. I have learned a lot about what these new engines need before being applied, based on tearing them down before they are ever fired up.
The cores can be tricky, really tricky and its not always a pleasant experience.
There are options and you need to explore all of them.
The latest information I received from a dealer is that the type of crack I have in the cylinder liner MAY or MAYNOT be accepted by Porsche as a useable core. Essentially it is a crap shot if I would see the core charge returned.
Unfortunately, it isn't the dealer's decision.
Does anyone have any idea what a 2003 911 C4s is worth w/o a working engine, but everything else is immaculate?
Lots has changed with cores as of late.. Especially on certain cars/ models. Some people are getting hosed on their core deposits.
Ultimately until the engine gets to Germany and is absolutely accepted no one knows whether the core deposit will be returned.
Well, you won't like this but my thinking is I'd use one of the web sites to determine the car's wholesale value, then price a remanufactured engine installed from a Porsche dealer and assume the existing engine will not be accepted as a viable core and then subtract these amounts from the wholesale price and make that my offer.
Given the car is located probably a ways from me and is undrivable there's the cost of having it shipped to my house and local Porsche dealer or the trouble of having it delivered to a Porsche dealer in your area and then getting the engine R&R'd and the car back on the road.
Sincerely,
Macster.
Just to close the loop.
After struggling over whether to rebuild the engine with shops like Flat6 and Powertech or getting a Porsche remanufactured engine, I sold the car "as is" to an enthusiast that I'm sure will take good care of it.
In summary and for the record; 2003 911 C4S with 45k miles, was never tracked, abused and was dealer maintained. The body and the interior of the car are immaculate. The following is a list of needed repairs that I consider beyond normal wear and tear; 3 RMS seals replaced under warranty, a front differential replaced at 42k miles, a cracked cylinder liner at 45k miles. My only reminder of the car is a set of extra wheels sitting in the garage.
Don't know yet.
If I go with another Porsche, I will stay away from 996 and 997's except for the turbo or gt3. I just don't have faith in the engine's reliability.
I know this is blasphemy to some, but I may also explore a M3 or next year's RS4 and 5.
