fullymatted.
Back to search
Rennlist

Sport Exhaust Question

Add to repair workspace
Open repair workspace
Original source
5 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHSport Exhaust Question

Leading reported evidence

Test drove a 2004 carrera 4s the other day

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 · Original poster

I test drove a 2004 Carrera 4S the other day that had the button on the dash for the PSE.

Original post Read captured discussion
Sport Exhaust Question
Read full discussion summary

Leading evidence: 'Test drove a 2004 carrera 4s the other day' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Test drove a 2004 carrera 4s the other day' (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.

Read captured replies

1 matching discussions · 5 captured posts examined · 0 partial discussions

Frequently discussed actions (1)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Test drove a 2004 carrera 4s the other day

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 · Original poster

I test drove a 2004 Carrera 4S the other day that had the button on the dash for the PSE.

Original post Read captured discussion
Sport Exhaust Question
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.

5 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: 20261026T172408Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I test drove a 2004 Carrera 4S the other day that had the button on the dash for the PSE. I pushed it a number of times and didn't notice any change in exhaust sound and the light did not come on. Upon further inspection of the car and the options tag I found that it does not have option code XLF. So I'm thinking that either a previous owner had a sport exhaust installed at some point after it left the factory and the switch is no longer working, or someone thought it would be a good idea to put a button on the dash that does not do anything. Is there another way to verify if this car does in fact have the sport exhaust? Anything in the engine compartment or under the car that I could look for? Thank you, Will

POST 2Original post

Peek underneath at the mufflers and see if you can see the actuators. If it has them then you have the PSE mufflers. It very well could be that either the vacuum solenoid valve is broken or the valve is stuck either through corrosion or a blown diaphragm.

POST 3Original post

Good chance the solenoid valve or push rod is rusted and / or damaged from age.

POST 4 / ORIGINAL POSTEROriginal post

Thanks for the quick response guys! I'll try to get it up on a lift to check it out. Does anything need to be removed to gain access/visibility to this? Also, if it is in fact rusted/damaged, is there an easy fix (like removing it alltogether and having it permanantly in sport mode)?

POST 5Original post

Quotes source post: 11853739

You don't really need a lift as you can peak your head under with a flashlight and be able to see the exposed mufflers. Lift will def make it easier though. Mufflers should be in clear sight from underneath. You can buy a generic actuator if it has a broken or leaking diaphragm or let it soak in Kroil or PB blaster if the arm is just rusted and try manually moving or breaking the actuator arm free.

This is a source reference. Confirm exact model applicability in the original material.