johanneswolf37
Peugeot 5008 rough running hissing noise
Summary of the thread
A 2009 Peugeot 5008 diesel is experiencing rough running, reduced power, jerking during acceleration, a loud hissing noise, and increased fuel consumption. These symptoms suggest a potential issue with the intake manifold flap control, which affects air distribution to the engine cylinders. A similar case was resolved by replacing a defective switch controlling the intake manifold, and it is recommended to have a professional mechanic diagnose the problem and read the error codes to confirm the cause.
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4 comment(s)
johanneswolf37 (community.author)
Thanks! So, how did you fix it? Was it definitely the intake manifold flap control?
elizabethhoffmann3
Well, after checking a few things myself, I wasn't able to sort the fault. Due to the complexity I ended up taking it to a workshop, which determined that the switch controlling the intake manifold was indeed defective. It’s better to have that checked by a professional, since replacing that switch can be a bit tricky, especially if you don't have the right tools or knowledge. Get your error codes read out by a mechanic. If it is that part, the repair cost will probably be around 465€.
johanneswolf37 (community.author)
Cheers, thanks for the heads-up! I'll book it in for a check-up at the local garage then. Hopefully, it's just that switch and nothing more serious!
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PEUGEOT
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5008
elizabethhoffmann3
Sounds familiar. I also drive a Peugeot 5008 diesel and experienced similar symptoms not too long ago. The hissing, rough running, and power loss point towards a potential issue with the intake manifold flap. Basically, the intake manifold distributes air to the engine cylinders and the flaps control how the air flows. If they're not working properly, it can seriously mess with engine performance.