Performance exhaust button - No difference in sound on/off?

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🤦‍♂️🤦‍♂️🤦‍♂️ Well that’s embarrassing. Guess I didn’t follow the lines far enough! Lesson learned.

At least they didn’t have to order a new solenoid or keep the Jeep more than a couple hours, I’ll chalk that up to a win!
That tech must have a spelling degree.
 
View attachment 6908


🤦‍♂️🤦‍♂️🤦‍♂️ Well that’s embarrassing. Guess I didn’t follow the lines far enough! Lesson learned.

At least they didn’t have to order a new solenoid or keep the Jeep more than a couple hours, I’ll chalk that up to a win!
I'll take a simple fix over a complex one any day lol.
 
That tech must have a spelling degree.
At least he spelled the important words like "nipple" correctly. :)

I just like the fact that the tech detailed his/her troubleshooting on the vehicle report. Well done!
Agreed. This is actually good reporting by the tech and SA. It can be like pulling teeth to get those guys to spend 30 seconds putting in detials like this. Of course, when it's a warranty claim, they work a little harder to get it right because it will get kicked back without an explanation.
 
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View attachment 6908


🤦‍♂️🤦‍♂️🤦‍♂️ Well that’s embarrassing. Guess I didn’t follow the lines far enough! Lesson learned.

At least they didn’t have to order a new solenoid or keep the Jeep more than a couple hours, I’ll chalk that up to a win!
So all of a sudden today, i pressed the performance button, and noticed strangely the sound didnt change, i pressed again to turn on, and no change....checked all the fuses, all look good, I brought it to jeep and they did take about 20 min to look around a bit, but didnt have any time today to continue to explore. I will have to bring it in longer for them to look into this. Curious, i have the ezcat issue, but i have 5k miles on my jeep and it worked fine till this weekend. I highly doubt my issue is as simple as the supply hose not connected to intake, but wondering if i can look for this, or is this supply hose really hidden? any ideas where i can look for this?
 
There you go, they forgot to connect the hose in the factory. The same thing as I had with mine, only on the other side lol :ROFLMAO:
where is this hose attached to on the intake? im 5k miles in and all of a sudden yesterday the performance is now stuck on loud
 
where is this hose attached to on the intake? im 5k miles in and all of a sudden yesterday the performance is now stuck on loud
I can’t answer your question. But it could be worse, at least you’re not stuck in drive through mode. LOL!
 
where is this hose attached to on the intake? im 5k miles in and all of a sudden yesterday the performance is now stuck on loud
Here’s a good video showing the vacuum canister / reservoir under the hood. I have no clue where it’s hidden under the hood of the production 392.
 
And here's a still image of that same frame.
 

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I own my 392 now and have just reached 2790 miles and noticed the same issue you’re taking about.

I’m going to see if I can fix it myself or did your dealer find the actual cause?
 
I own my 392 now and have just reached 2790 miles and noticed the same issue you’re taking about.

I’m going to see if I can fix it myself or did your dealer find the actual cause?
Had the same happen. All vacuum lines were ok, light on the switch, and message displayed on dash saying it was functioning. So took it to the dealer. There is an electronic solenoid on top of the rear cross member passenger side that opens and closes the vacuum lines to each actuator. It was getting signal… but not functioning. Replaced it and good to go. ✌️
 
Had the same happen. All vacuum lines were ok, light on the switch, and message displayed on dash saying it was functioning. So took it to the dealer. There is an electronic solenoid on top of the rear cross member passenger side that opens and closes the vacuum lines to each actuator. It was getting signal… but not functioning. Replaced it and good to go. ✌️
Did solenoid replacement increase your exhaust sound? I’m going through the exact same thing right now in a new to me 2021. I don’t know if mine is stuck in quiet or loud and only care to replace it if it would help get the full performance exhaust experience.
 
Did solenoid replacement increase your exhaust sound? I’m going through the exact same thing right now in a new to me 2021. I don’t know if mine is stuck in quiet or loud and only care to replace it if it would help get the full performance exhaust experience.
The exhaust valves are set to performance by default..... meaning when vacuum is applied to the actuators they switch to quiet mode. So, if you pull the vacuum lines off the muffler actuators and plug the lines temporarily, it should be in performance mode all the time.

Likewise, if you have a small brake bleeder or similar vacuum pump, you could temporarily apply vacuum directly to the actuators to force it into quiet mode.

just make sure you don't leave the lines open back to the engine as it might throw a code for the vacuum leak.
 
Having same problem and dealer said solenoid failed (7k miles on truck). $850 to replace/repair, $500 for just solenoid. I’m out of warranty. Looks like this will be expensive repair for a lot of owners in the future. Was wondering if anyone knows if this is a unique solenoid or can any cheaper off the shelf one would work with just some custom wiring?
 
Having same problem and dealer said solenoid failed (7k miles on truck). $850 to replace/repair, $500 for just solenoid. I’m out of warranty. Looks like this will be expensive repair for a lot of owners in the future. Was wondering if anyone knows if this is a unique solenoid or can any cheaper off the shelf one would work with just some custom wiring?
Disclaimer: I have not even looked at he Jeep solenoid...

But I'm assuming it's controlled by 12v power (seems likely). In the industrial world solenoids for air/vacuum control are commodity items. Manufacturing and automation use them everywhere.

I'd think it would not be hard to make that work. Worst case, is that you'd have to abandon the dash switch, and use an AUX output or something.

Link to super cheap air solenoid: https://www.amazon.com/4inch-Normally-Closed-Electric-Solenoid/dp/B074Z5SDG3?tag=jeep392-20

Not sure if you'd want normally closed or open, but both are readily available.
 
Disclaimer: I have not even looked at he Jeep solenoid...

But I'm assuming it's controlled by 12v power (seems likely). In the industrial world solenoids for air/vacuum control are commodity items. Manufacturing and automation use them everywhere.

I'd think it would not be hard to make that work. Worst case, is that you'd have to abandon the dash switch, and use an AUX output or something.

Link to super cheap air solenoid: https://www.amazon.com/4inch-Normally-Closed-Electric-Solenoid/dp/B074Z5SDG3?tag=jeep392-20

Not sure if you'd want normally closed or open, but both are readily available.
Thanks I’ll check it out!
 
Just had my performance/quiet exhaust switch quit working last week on my ‘22-392. Per the tech at the dealership, “removed gas tank. Removed exhaust bypass valve actuator, installed new revised actuator connector and new bypass valve. “
The part numbers involved were:
68547326AB-Hose Vacuum
68499974-AA-Wiring Harness
 
Same happened to me after last round of mods. Checked the hoses at both ends and all seems OK. Guy at the shop says it's likely the solenoid. Anyone have the part number for the solenoid? Thinking of ordering directly rather than going to the dealer
 

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