Peugeot 3008 EGR Valve Issue

My 2012 Peugeot 3008 diesel with 277778 km is having issues. There's reduced engine power, the check engine light is on, smoke appears during acceleration, the engine runs rough, fuel consumption is up, it jerks when accelerating, and there's a hissing sound. I suspect the EGR valve. Has anyone encountered anything similar?

4 comment(s)

Hey, sounds rough. I had similar symptoms with my Renault Megane. Reduced power, check engine light, the whole shebang. Turned out to be a dodgy EGR valve too. Have you checked for any error codes using an OBD2 scanner? That might give you a more definitive answer before you start tearing things apart.

Thanks! I haven't checked for error codes yet. Is it crucial to use a scanner, or could it be something else entirely?

While it could be something else like a vacuum leak or even a clogged catalytic converter (unlikely with those symptoms, though), the EGR valve is the most probable culprit. Definitely scan for codes; it'll point you in the right direction. With the Megane, I was convinced it was something simple, but the code reader nailed it. Ended up needing a new EGR valve. Honestly, with those symptoms, I'd get it to a workshop.

Okay, I appreciate the advice. I got it scanned. The error code confirmed it: EGR valve defective. I had it replaced at the local garage, and the total bill came to 355€. Now she's purring like a kitten again. Thanks a bunch for your help!

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