26 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHIMS data point
Leading reported evidence
Install by a high school dropout wrenching in a shop
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
I though it had to be "professionally" installed by a high school dropout wrenching in a shop to get a warranty.
Leading evidence: 'Install by a high school dropout wrenching in a shop' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'little low as idle/stoplight time is probably not included' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Check on it next time i'm in' (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.
Performed · outcome unconfirmed
Yes, but only on IMS Upgrades or Retrofit kits purchased through and installed by authorized dealers.
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
I had mine replaced with the LNE bearing for approx $1,900 by my dealer.
little low as idle/stoplight time is probably not included
Suggestion or failed attempt
No successful repair reported for this finding.
0
Identified cause
1
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 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 · Original poster
He came up with something like 30mph, likely a little low as idle/stoplight time is probably not included.
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 · Original poster
It was apparently slightly thicker but they were confident that it would work well and will check on it next time I'm in.
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 told the shop that I wanted to keep it and was told that LNEngineering would not offer any sort of warranty if I did not allow them to inspect the bearing, which makes sense in that they wouldn't want to warranty an engine that was already in trouble because of a wrecked bearing.
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
Also, a rubber disc at the end of the driveshaft to the front was cracked, and since the Porsche Flex disc is not available without replacing the entire driveshaft, they were able to fit a BMW 318ti automatic Trans Flex disc in place.
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.
26 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: 20261026T222516Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hi all,
I've had my 2002 C4 Cab for about a year, and was swayed by all the info about IMS failures once I tuned in and started to read about it. I didn't really understand it when I bought the car, and the PPI identified that it had had an oil leak in the past and identified the work done, but I didn't know enough at that time to worry. When I looked back into my car's maintenance records I saw that the RMS had leaked and been replaced and that the IMS seal was leaking and replaced at the same time. I didn't know if that would make it more or less likely that I might suffer an expensive IMS problem so I went ahead and dropped the $2100 to have the LNEngineering retrofit installed. I got to see and inspect my IMS bearing and it looked pretty good, only a little play and rotated smoothly. I told the shop that I wanted to keep it and was told that LNEngineering would not offer any sort of warranty if I did not allow them to inspect the bearing, which makes sense in that they wouldn't want to warranty an engine that was already in trouble because of a wrecked bearing. So, I have had an email conversation with someone at LNE who has promised to return my IMS bearing after they have inspected it. I think it will make an expensive paperweight and not many people will know what it is. Well, that's my experience and data point. The shop was Auto Edge in Mahtomedi, MN, and they did a nice job for a good price.
BTW, I've been lurking on the site for several months and only joined today. I really appreciate all that I've learned here and am looking forward to continuing to learn more!
6 speed, 52K. I'm the second owner. Looks like oil changes were about every 7-10K or so and it was never driven on the track or even very hard by the previous owner.
They charged $1428 for labor, but didn't break it down into hourly.
Also, a rubber disc at the end of the driveshaft to the front was cracked, and since the Porsche Flex disc is not available without replacing the entire driveshaft, they were able to fit a BMW 318ti automatic Trans Flex disc in place. It was apparently slightly thicker but they were confident that it would work well and will check on it next time I'm in.
well congratulations... I hope your tenure will not be a repeat performance of the previous owner - if so, my condolences
beautiful car.... drive it and enjoy it
I can second that! I just had my 2003 C4S for a bunch of stuff relating to a leaky transmission I had, and since the engine and tranny were out, I also had them do the IMS, RMS, etc. My flex disk was also pretty cracked, and my mechanic (best independent in my city) did the same thing. He said it was a good fit, and frankly, I'd rather pay $30 than $1,000 for a new driveshaft!
On the note of sending my old IMS back to LN, where does it say in their terms and conditions that it needs to be sent back?
(Yes, I'll be posting pictures of everything in another thread - but my IMS looked pretty much pristine and brand new when it was pulled from my C4S with 62,000 miles.)
I had mine replaced with the LNE bearing for approx $1,900 by my dealer. That included IMS bearing, RMS, flywheel and clutch inspection, throwout bearing inspection and AOS test. My car has 27k miles and the old bearing looked new. Nothing else needed work, cleaned up some hot spots on the flywheel and it runs like new. They detailed it too - wash, two coats of wax, leather and interior treatment and carpet treatment. They've earned their premier dealer status. I'm picky and it was all done perfectly.
It's funny: when I had the PPI done the indie shop was able to calculate the average speed the car had been driven by dividing the mileage by the engine hours, apparently available somewhere in the engine diagnostics. He came up with something like 30mph, likely a little low as idle/stoplight time is probably not included. He was also able to tell me that the rev limiter had only been activated once in the course of the car's 42K miles.
I'm working to change these numbers. Unfortunately I can't make the Nord Stern DT scheduled at Brainerd this month, and they won't have another until September! Until then....there's always the fuzzbuster!
I never really saw a terms and conditions sheet, but was told twice by the shop that it had to be sent back or else the limited warranty was not valid. The shop did provide a copy of the data sheet that accompanied my bearing back to LNE. I emailed LNE and they confirmed that they are asking for the old bearings to build a database and work to understand which cars and circumstances lead to IMS failures. In the course of my email exchange, Charles Navarro at LNE assured me that he would send my bearing back to me if I paid postage, to which I've agreed. I suppose that they could send any bearing and I wouldn't know the diff, but assume integrity on LNE's part. Let you know when I get it! I'm hoping they include their analysis....
From Ln site
Yes, but only on IMS Upgrades or Retrofit kits purchased through and installed by authorized dealers.
We will match the authorized dealer's warranty up to 24 months/24,000 mi on an intermediate shaft that has received the IMS Upgrade or on a Retrofit kit installed as preventative maintenance.
Goodwill will be considered on a case by case scenario for rebuild or replacement of an engine if found that our IMS Upgrade or IMS Retrofit was the cause of engine failure by Flat 6 Innovations in the contiguous 48-United States.
Due to our inability to control the circumstances of an IMS Retrofit installation, there is no warranty on this product if a retrofit kit is being installed in place of a failed IMS bearing. Warranty form comes with your IMS retrofit kit with terms and conditions of limited warranty.
Hmmm, I never sent my bearing back. But I don't think there is a warranty anyhow since I installed it myself. I though it had to be "professionally" installed by a high school dropout wrenching in a shop to get a warranty.
My email exchange with Charles Navarro from LNE contained this regarding a reason for returning the IMS bearing:
"This ensures the procedure was carried out on a vehicle with an IMS bearing that had not been failing or had already failed. Secondly, we use the factory bearings to further gather data on them to better understand the frequency of these failures."
Marc quoted the site accurately, of course, but Charles also told me that they would be updating the site to provide more information about why the bearings need to be returned.
I'm looking to purchase a low mileage '03 996, but have the option to get a warranty through the dealer.
Has anyone had major engine repairs (especially IMS) covered under a non-manufacturer's warranty? If so, which warranty company?
Any advice would be appreciated.
I'm just looking for some insurance against an engine replacement and not sure whether I can trust any of these companies. A specific one I was offered is National Warranty of Florida, which is a sub of a larger company.
Thanks
