I think I have a faulty exhaust solenoid valve that controls the vacuum to the exhaust flaps related to the "Sport" mode. When I unplug the electrical connection to the solenoid, there should be no vacuum to the exhaust flaps (ie they should be open). However, they close (ie have vacuum) with or without the switch on/off or the solenoid unplugged. When I clamp the vacuum hose coming out of the solenoid valve (Sport button on or off), the flaps stay open as they should. When the engine is off, the flaps stay open.

I cannot find the part number for this solenoid valve. Any help would be appreciated. While I'm at it, a part number for the actual exhaust flap valves would also be good. 2007 GT3.

Thanks

 

Valves are are prt# 99711190190. The official description is "vacccum unit"

 

Thanks for the fast response. I appreciate it.

 

Looks like at least one exhaust flap valve, or whatever it's called, is also bad. Part number? Not sure why the sport exhaust is not shown in the PET pdf's.

 

Sorry...I may have misunderstood. Is this the part number for the vacuum unit that directly actuates the flaps in the exhaust, or the solenoid unit on top the engine the electrically controls the vaccum signal to the flaps below? Sorry for the confusion.

 

Yes it is the vacccum valve which actuates the flaps!

 

Thanks!