POST 1 / ORIGINAL POSTEROriginal post
I'm looking at a 2004, 40th anniversary 996 with the factory X51 package. Is this engine still prone to the IMS failure? Or does it have internal upgrades similar to the turbo motors.
11 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
Discussion summary
YOUR RESEARCHX51 Power package
1 matching discussions were examined; no attributable action/outcome evidence was detected. No consensus or repair conclusion is claimed.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Read captured repliesInsufficient extracted evidence does not mean there is no answer in the original discussions.
1 matching discussions · 11 captured posts examined · 0 partial discussions
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.
11 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: 20261026T113718Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
POST 2Original post
Same engine and even the first gen 997 and 997S share the same engine. So yes. Recent 997 engine failure
POST 3Original post
Quotes source post: 6397586
It is susceptible to all the normal failures. Mine had the RMS replaced at a little over 9,000 miles last summer just before it went to its new owner.
POST 4Original post
Mine is at 47,000 miles and going strong, no leaks ever. The HP upgrades come from intake and heads, so engine internals/seals have same vulnerabilities as standard 3.6 engines. If you decide to get it, you'll love the way it comes on the cam at 5,000 RPM!
POST 5Original post
Quotes source post: 6397586
Same potential failures, only you will be going alittle faster when they happen. Porsche does offer a upgraded IMS that can be replaced to now, it is larger from what I understand with a slightly different bearing. It's not as nice as the aftermarket one but it is Porsche. I believe it is also what is in the 997.2 now, although don't quote me on that as I havn't gone back and double checked the parts catelog.
POST 6Original post
Quotes source post: 6398610
Upgraded headers, computer program also. Makes the car much more fun to drive !
POST 7Original post
Quotes source post: 6398788
I though they got rid of the IMS.... on the 997.2
POST 8Original post
Quotes source post: 6399242
I think he meant that. You are correct though.
POST 9Original post
Too early for me to say, the motor has 2k miles on it with one DE event. The 997 has 8.5k miles with a multitude of DE events, and so far knock on wood everything is okay.
POST 10 / ORIGINAL POSTEROriginal post
If the engine is one that is destined to fail, would it happen early (<20K miles) or could it happen anytime? Are higher mileage cars (assuming good records) better & less likely to fail.
POST 11Original post
There are always exceptions to anything, and because there are so many types of failures, othing is absolute. But in general, from just reading the forums on this topic to death, once the car is past 60k miles or so, if there isn't an RMS or IMS issue, the chances appear to drop significantly. Of course, there are still cracked heads, AOS, coolant tanks, etc, etc, but they are not as incredibly expensive as an IMS failure. FWIW, RMS is not really a big deal at all. 997.2 has no IMS. Hopefully, mine will last until 2015, when I should be able to justify a used 2010....
This is a source reference. Confirm exact model applicability in the original material.