Pelican Parts

Cracked Cylinders

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHCracked Cylinders

Leading reported evidence

Run with original ims)

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

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Suggestion
I understand engines have failed (D-chunk, IMS, or whatever else), but it seems that those that have failed get a lot more promotion than the majority (those that have over 100K miles and still running with original IMS).
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Cracked Cylinders

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Leading evidence: 'Run with original ims)' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Run with original ims)' (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.

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1 matching discussions · 4 captured posts examined · 0 partial discussions

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Test during ppi will help foresee problems like this

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
It is mostly the 3.4 engines that have this problem (99-01) a cylinder leakdown test during PPI will help foresee problems like this.
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Cracked Cylinders

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.

Run with original ims)

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 understand engines have failed (D-chunk, IMS, or whatever else), but it seems that those that have failed get a lot more promotion than the majority (those that have over 100K miles and still running with original IMS).
Original post Read captured discussion
Cracked Cylinders

Test during ppi will help foresee problems like this

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
It is mostly the 3.4 engines that have this problem (99-01) a cylinder leakdown test during PPI will help foresee problems like this.
Original post Read captured discussion
Cracked Cylinders

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.

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

Pelican Parts: 1 discussions

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Generation: 20261027T035758Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

It's great to see that LN Engineering has come out with fixes for the IMS and its problems. While researching 996s I've also seen reports of cracked cylinders. How does one know during a PPI that there may be potential problem with the cylinders? If one's 996 suffers from this is there a permanent fix (during a rebuild I would assume) like the IMS upgrade? The IMS and RMS problems seem to have been solved.. I hope. I'm taking a look at the 996 but I want to know what I'm getting into.

POST 2Original post

LN engineering has the cracked cylinder cure also. It is mostly the 3.4 engines that have this problem (99-01) a cylinder leakdown test during PPI will help foresee problems like this.

POST 3Original post

I have seen sooooo many 996 with over 100K miles with original engines (and IMS), that I do not get concerned about it. I understand engines have failed (D-chunk, IMS, or whatever else), but it seems that those that have failed get a lot more promotion than the majority (those that have over 100K miles and still running with original IMS). Byprodriver is correct, LN has the cylinder inserts to rebuild engines.

POST 4Original post

Pesuazo, Thanks for your comments about the soundness and reliability of the 996.

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