Porsche Sports Exhaust PSE is quiet or coolant light on? DIY fix 981, 991, 718, 997, 987, GT4 GT3

Porsche Sports Exhaust PSE is quiet or coolant light on? DIY fix 981, 991, 718, 997, 987, GT4 GT3

Is your Porsche Sports Exhaust PSE as loud as you remember, or maybe you had a coolant warning light recently? if there is no sign of coolant leak then you need to watch this video!

In this episode of the Porsche maintenance series, we explain how the PSE operates, what can go wrong with it and how to fix it.

Please leave comments if you have faced this issue on your Porsche, it is applicable to the 981, 911 – 997, 991, 718 and many more.

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Useful links purchase links on Amazon: these links support the channel

Jack pads (UK link) – https://amzn.to/35YCL1r
Jack Pads (USA link) – https://amzn.to/2TLFzJA
Penetrant spray – https://amzn.to/3cf6zZy
High performance grease – https://amzn.to/3dCHMiv
Wire brush – https://amzn.to/3bfIvV3
Male Torx Set inc T30 – https://amzn.to/2VHBzvs
Female Torx Set inc E10 – https://amzn.to/2yUznaI
OR, Official part no. via Porsche – 7pp906270, oem Pierberg

In this episode I attempt to find out why my Porsche Sports Exhaust (PSE) has lost it’s snap, crackle and pop. I also got a coolant warning a few weeks before. We go through how the PSE and vacuum system works and the potential areas to troubleshoot before visiting the OPC or specialist.

First we look at the exhaust valves and actuators to find out if they are seized before moving into the engine bay to explore the vacuum system and electrical components which control the system.

We then move onto the vacuum system, the vacuum system controls the movement of the valves and if there is a leak or the solenoid controlling the system fail the car can begin to throw coolant warning errors or the PSE valves will stop functioning even when pressing the exhaust button.

I’m only a keen enthusiast who enjoys a bit of problem solving, I am not a trained mechanic, this video was created for your information so use the video for guidance and do your own research or consult a professional if in doubt before proceeding.

Tools as used in this tutorial are available on Amazon, links in this video description might be affiliate links. If you purchase a product or service using one, I may receive a small commission at no additional cost to you. The revenue I earn from affiliate links helps to keep my channel in good order and is an easy way to show your support and help me make more videos like this.

Male Torx Set inc T30 – https://amzn.to/2VHBzvs
Female Torx Set inc E10 – https://amzn.to/2yUznaI
OR, Official part no. via Porsche – 7pp906270, oem Pierberg

Applicable to all Porsche cars with the PSE system;
Porsche 911 – 996, 997, 991, 991.2 GT3
Porsche Cayman / Boxster – 986, 987, 981, 718, GT4, GTS, Spyder, R

Join me while you are stuck at home, hope you enjoy. Please like and subscribe to support us.

Items used to film the video ⬇️

Camera – Cannon M50 – https://amzn.to/2U5SrL3
Tripod – Amazon basics – https://amzn.to/2XVz2xt
Microphone – Mini – https://amzn.to/2XVRsOx
Video Editor – Hitfilm

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Comments

Auto Amateur says:

Great approach, great thoughtful shots laced in throughout, great outcome! What a brilliant video! More please!! 🙂

Nomans land says:

Very informative. Thank you.

steve foster says:

I had this issue at the weekend but my valves were not moving when the car was started so assumed it wasn’t the valves as both appeared stuck. First drive since the weekend and all appears well again. Seems odd for both valves to stick at the same time I thought. You seem to be able to move your valves easily but when I questioned Porsche on this they say they need a bar to apply sufficient pressure to move them? Car booked in with Porsche arrggg

PAKNVNM says:

I enjoy your videos and appreciate you sharing your knowledge. I am curious if I have a bad change over valve… I ask because I recently installed a race exhaust on my 981 gt4 which doesn't have exhaust valves… its loud all the time. The shop plugged the vacuum lines and after driving it for an hour or so after the install I received the "Cooling system fault" message. I called the exhaust manufacturer and they told me to unplug the vacuum lines, reset the fault message and all would be fine. I am going to try that, but I feel that leaving them exposed to the ambient may trigger fault as well. Just curious if you have heard of this. Thanks

Oskar Wendowski says:

Couldn’t you just remove the vacuum hose to always keep the valve open? (I know it’s better to have control but just curious)

Jason Norris says:

I have a 991.2 GT3 and the valves are stuck open. I can’t find any resource as to where the change over valve is on my car. Do you happen to know? Car is under warranty so I might just take it in for service. I’d like to try it myself first.

MIP1983 says:

Quick question on this one. With your PSE, let's say you've got the sport exhaust switched on, is there any dynamic open/close behavior with throttle/rpm or do you expect the valves to stay open all the time? With mine at idle, it looks ok, as I press the switch on/off the valves open/close. But I swear I can sometimes hear them actuating between 1-2k rpm. I think there's sometimes there's almost a bit of a delay as I press the throttle and then the it sounds like the valves pop open. Makes me wonder if this is normal or if something's not quite behaving? (2012 981 S)

motolimey says:

Love the intro shot! Many years since my last blast around Scotland, some great memories 😉

Paul Dodds says:

Great Video. Over a five month period, both valves on my car seized. Replaced entire exhaust assembly under warranty in both cases. As a precaution for the future, can you recomend a good high temperature lube to at least try and take care of the new ones?

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