Roush Active Exhaust issue, general quesiton

[Sammy Killer]

Hey guys,

So I'm pretty sure the Roush active exhaust valves on my car are busted, I tried to open them today and even restarting the car a couple of times didn't work. Car is close to 9K miles and has a bumper to bumper warranty, so I will try to get the issue sorted out with the Dealership I do warranty service with.

Now, in the mean time, I need to drive the car daily for a couple of weeks before I have the time slot and availability to have it looked at by the service dept.

My main question:

Will driving the car with these valves closed create back pressure? Car has a Roush blower and their phase 2 kit so it should be at around 620WHP (albeit at like 6K+ RPM with a hard 7K RPM limit/fuel cut) it has the stock Roush tune.

I rarely push the car to it's limits, but if the event came up, I don't want to push the car for it to lose power to back pressure or even worse, cause engine damage.

PS: Tried searching for the issue here and it's a common issue with these exhaust kits it seems, although no one spoke about back pressure or engine damage if pushed to its limit with valves closed so that's why I created this thread.

Thanks all.

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[Jay-rod427]

Would be no more restriction than if it had stock exhaust.

 

[Sammy Killer]

Would be no more restriction than if it had stock exhaust.

Alright, sounds like it shouldn't be a big concern aside from the car sounding terrible since its basically a mixture between small parts rattling and stock exhaust like sounds.

 

[db252]

Might just need the relay replaced as that was my issue. If installed per instructions, the relay is located in the upper left trunk area behind the wall insulation. Cheap and easy first check issue.

 

[Mike K.]

Just don’t push it until repaired. Both valves won’t open ? If that’s the case i agree it’s most likely the relay or some other part of the system vs the valves. I had a faulty valve on mine however it would try to open and then close and the amber light would come on. Roush warrantied it and i replaced it and all was normal. Just saying highly odd for both valves to go at the same time

 

[OrangCrush]

Have any of you have issues with the valve rattling?

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