14 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH2002 996 C4S PSE option or retrofitted
Leading reported evidence
Disconnect from the solenoid
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
It seems that the line have been disconnected from the solenoid.
Leading evidence: 'Disconnect from the solenoid' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check vacuum hoses' (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 contain suggestions
1
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0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
Check the vacuum lines that plug into the actuators
Disconnect line, broken line, actuator failure or something like
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
If the button doesn�t work it�s a disconnected line, broken line, actuator failure or something like that.
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.
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.
14 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: 20261026T103553Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hi everyone,
Quick question for you today.
My 2002 C4S seems to have the system (She's loud) and I have the proper switch in the center console. The switch is 'lightning' but it doesnt seems to actuate anything.. Perfect that way.
I still have to confirm if the relay has been modded but that aside I would like to know if the system was an option or retrofited.
What make me doutb is the switch... I tought nobody would instal the switch when retrofitting.
The option XLF is not mentionned on the VIN sticker.
What is your opinion
Thanks you
I think if you retrofit it, other than a remote, the switch is the only way.
Pull the horseshoe and see if the wiring looks like it is part of the wire harness.
Retrofitted. The option code for sport exhaust was XLF. Chances are either you have a vacuum line disconnected, a bad changeover valve, someone modded the relay, or one or both of a vacuum valves on the mufflers is bad (they fail in the loud position). It wasnt common to add the switch. It added a lot of labor to the cost of the retrofit and most people just wanted them loud all the time anyways.
I have pse, my button functions as it should and I switch it to quiet mode absolutely never. Not saying I wouldn�t investigate and make simple repairs, just wouldn�t let it bug you too much.
Hello, I too have the PSE with broken button that does not light up. I also came to find out the the diode in the relay was also intentionally cut to always have the Loud exhaust tone ON (35-45mph) I don't mind at all. My vin shows XLF.
For what it�s worth, a cut diode (also known as pse hack) won�t make it so the loud setting is always on. It simply disables a factory setting to put the exhaust in quiet mode at lower speeds (17-32mph or something like that). If the button doesn�t work it�s a disconnected line, broken line, actuator failure or something like that.
Check the vacuum lines that plug into the actuators
when I purchased my car, the PSE was always on, so when I investigated, I saw the vac lines had slipped off
(the PO may have unplugged them to bypass the low speed cutout, but I did the relay hack)
Hi guys,
Had a quick look today and here's what Ive found. Seems like the previous owner just tapped the line with a screw..
It seems that the line have been disconnected from the solenoid. I have to inspect what's connected to it instead of the 'Y' lines, and re-connect the system to see if its still working.
I got to clean the engine bay during my vacation so I will do this soon and let you know if it worked!
Hi guys
it seems more complicated then I tought.
I really dont understand what the previous owner have done to it but here's some pictures of the actual setup.
Any idea of how I should route the system?
I will dismantle the air box tommorrow and I will provide better pictures but if I could get an idea of what goes where that would be great.
Pictures with blue circles:
Vacuum from the intake seems to go down to a white filter before going to black vaccum manifold?
Red circles:
From actuator to the driver side of the engine
Yellow circle:
One part Not connected.
Second part seems to be connected to a braided line that goes to the PSE system
"Y" connector plugged with a simple bolt....
I know I need an engine bay clean-up...
I just realised I have an hydraulic fluid leak from the tank cap and the result still have to be cleaned...
On a side note any idea of how to solve this easily? Just changing the seal should do it?
Thanks for your help
Os
Alright after removing the air box its a bit easier to understand but Im still wondering what could attach to the actuator.
Here's some pictures so you can probably guide me on what goes where:
Actuator on the left side of the engine. One end goes to a braided line which I suppose is the PSE. One nipple is not attached to anything.
The "Y" one end is connected to the PSE braided line, one connected to another "Y" connector which is connected in the vacuum manifold and the intake. The other end is plugged by a simple bolt....
Actuator on the right side of the engine. One nipple is connected to the vacuum manifold, the other one seems to go down on the left side of the engine.
Im actually cleaning the engine bay so a detailed vacuum lines diagram or your thoughts on how to solve this would be appreciated.
Thanks!
