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Rattling/clunking from PSE?

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

Discussion summary

YOUR RESEARCHRattling/clunking from PSE?

Leading reported evidence

Install pse

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 just installed PSE on the C4S yeasterday and it is the best sounding exhaust I have ever heard, especially at 3k rpm and above.

Original post Read captured discussion
Rattling/clunking from PSE?
Frequently discussed work

Check cats

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

Have them check the cats with a rubber mallet.

Original post Read captured discussion
Rattling/clunking from PSE?
Read full discussion summary

Leading evidence: 'Install pse' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check cats' (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.

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1 matching discussions · 6 captured posts examined · 0 partial discussions

Compare 3 other evidence results

Install yesterday, go right back

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

But since you had them installed yesterday, go right back to the dealer and have them fix or replace them.

Original post Read captured discussion
Rattling/clunking from PSE?

Replace already

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've had 2 replaced already for rattling.

Original post Read captured discussion
Rattling/clunking from PSE?

Check cats

Suggestion or failed attempt

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 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

Have them check the cats with a rubber mallet.

Original post Read captured discussion
Rattling/clunking from PSE?
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.

Check cats

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

Have them check the cats with a rubber mallet.

Original post Read captured discussion
Rattling/clunking from PSE?

Install pse

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 just installed PSE on the C4S yeasterday and it is the best sounding exhaust I have ever heard, especially at 3k rpm and above.

Original post Read captured discussion
Rattling/clunking from PSE?

Install yesterday, go right back

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

But since you had them installed yesterday, go right back to the dealer and have them fix or replace them.

Original post Read captured discussion
Rattling/clunking from PSE?

Replace already

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

I've had 2 replaced already for rattling.

Original post Read captured discussion
Rattling/clunking from PSE?
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.

6 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: 20261027T020439Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I just installed PSE on the C4S yeasterday and it is the best sounding exhaust I have ever heard, especially at 3k rpm and above. I never turn on the radio now and always roll down the window at all times. And couldn't get enough of driving this car. But I have a problem. I was driving normally, and a loud rattling/clunking sound came up. I looked down with the engine running, but I don't see nothing that cause this rattling/clunking noise. I went home and the noise is now gone. I am going in to the dealer tomorrow. Anybody knows what is happening? Thanks, Richard

POST 3Original post

Have them check the cats with a rubber mallet. I've had 2 replaced already for rattling.

POST 4Original post

I've had zero problems with mine, 2 years and 10K miles. No rattles or clunks... Sounds like an installation problem to me... Roy

POST 5Original post

The actuator arms which control the valves are only pressed together, they can (and most likely will) loosen after enough miles. There is no way to tighten them, try some WD40 or axle lube as a band aid solution, otherwise weld them up. The heat shields are also very flimsy and can loosen and eventually fall off like mine did, this will produce the classic " loose beer can" sound. PSE, at least the early 3.4 version, has some significant build quality issues IMO, I hope the newer ones are better. But since you had them installed yesterday, go right back to the dealer and have them fix or replace them.

POST 6 / ORIGINAL POSTEROriginal post

The rattling noise happened only for 10 minutes. It wasn't making the noise too when I went to the dealer this morning, so they can't really check what's up. The only thing they can think of that is making the noise is the internal valve, like what you guys have all said. But I don't think they did anything to it. The head technician told me to drive it more often. Is his suggestion valid?

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