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Help! What is this line and where does it go?

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Old 04-12-2022, 11:08 PM
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Question Help! What is this line and where does it go?

I managed to get a vacuum leak on the air chamber assembly (part # C2Z30725) and noticed that it has a nozzle looking thing connected to nothing and a hose further down also not connected to anything.
After much digging, I found out that the nozzle line is also part of the air chamber assembly (part # AJ812350) so thats resolved I hope (just ordered both parts). Now the hose further down is what I'm confused on.. The previous owner did not disclose that it didn't have these lines being connected to anything sadly.
If anyone has any insight or can share a picture of where this hose line with blue/green text at the back near the AC port that would really help a ton!




 
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Old 04-13-2022, 03:56 PM
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I believe what you are looking at in picture #1 is part of the symposer assembly that connects the tuning valve (item 7 below) to the actuator on the air box. It should loop from here down to a port on the bottom of pneumatic valve (item 9). It looks like the actual hard vacuum line has broken off.

 
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Old 04-13-2022, 06:55 PM
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The U shaped one that does not connect to anything is the Transmission Vent tube. That is how it is supposed to be.

DC

Edit - Here are pics






 

Last edited by Therock88; 04-13-2022 at 08:17 PM.
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Old 04-13-2022, 07:31 PM
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I just checked under the hood and that's definitely #6 from the diagram, and broken. I can't confirm the transmission vent line because I have a different transmission, but don't doubt DC.
 
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Old 04-13-2022, 08:37 PM
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With the symposer seeing just ambient pressure, I wonder if it defaults to maximum sound enhancement or no enhancement?
 
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Old 04-13-2022, 09:00 PM
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Originally Posted by yostra
With the symposer seeing just ambient pressure, I wonder if it defaults to maximum sound enhancement or no enhancement?
I'd say that the symposer is incapable of any "enhancement," but I'm perhaps the leading opponent of it on this forum. I continue to plot its complete removal from my car, but disabled it no longer offends me physically (only spiritually). Nevertheless, that line has an individual number in the diagram so should be available as a spare part. It's a molded plastic line with rubber fittings, so shouldn't be prohibitively expensive.
 
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Old 04-13-2022, 10:24 PM
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Originally Posted by Therock88
The U shaped one that does not connect to anything is the Transmission Vent tube. That is how it is supposed to be.

DC

Edit - Here are pics






Thank you for this! really relieved a lot of stress from searching!
 
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Old 04-13-2022, 10:29 PM
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Originally Posted by yostra
With the symposer seeing just ambient pressure, I wonder if it defaults to maximum sound enhancement or no enhancement?
I honestly can't tell a difference in sound, so maybe no enhancement.. but could be because all I hear instead is my vacuum leak on part #11 LOL
 
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Old 04-13-2022, 10:34 PM
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Originally Posted by lizzardo
I'd say that the symposer is incapable of any "enhancement," but I'm perhaps the leading opponent of it on this forum. I continue to plot its complete removal from my car, but disabled it no longer offends me physically (only spiritually). Nevertheless, that line has an individual number in the diagram so should be available as a spare part. It's a molded plastic line with rubber fittings, so shouldn't be prohibitively expensive.
Local jag dealer in Houston has part #6 for $34, but got it from Harper parts for $13! Also just went ahead and bought the whole symposer used off eBay. interesting thoughts on removing it! lol
 
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Old 04-13-2022, 11:25 PM
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Originally Posted by Cwis
Local jag dealer in Houston has part #6 for $34, bmut got it from Harper parts for $13! Also just went ahead and bought the whole symposer used off eBay. interesting thoughts on removing it! lol
https://www.jaguarforums.com/forum/f...emoval-240551/
 
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