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Seat Ibiza engine issues

My 2009 Seat Ibiza with a diesel engine is having issues. It has 68935 km. I've noticed reduced engine power, the check engine light is on, smoke appears when accelerating, the engine runs roughly, fuel consumption is higher, there's jerking when accelerating, and a loud hissing sound. Could this be a defective EGR valve?

4 comment(s)

I had similar issues with my Ibiza, though a different year. Reduced power, check engine light, the works. Does it jerk when you accelerate? I suspect a jammed or defective EGR valve. It's common. Have you checked for vacuum leaks around the engine bay? Also, when was the catalytic converter last checked? A clogged one can strain the EGR system.

Thanks for the quick reply! Yes, it jerks when I accelerate, and there's a loud hissing noise. How can I check the vacuum leak and catalytic converter myself, or should I get a professional?

The jerking and hissing point to a possible EGR valve issue, especially with the other symptoms. Checking the vacuum leak and catalytic converter is best left to a professional if you're not comfortable. Vacuum leaks are tricky to find without the right tools, and checking the catalytic converter needs specialized equipment. Since you're experiencing these symptoms, it's likely more than a minor issue. I'd recommend a trusted workshop for proper diagnosis. It sounds like the EGR valve, and fixing it will help your vehicle emissions and overall engine performance.

Just a quick note. The workshop visit confirmed the EGR valve was the problem. Replacement sorted it, and the car runs great now. Cost was 355€ Thanks for the assistance.

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