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luisehahn16

Peugeot 3008 knocking sound power loss

I've got a 2012 Peugeot 3008, gasoline engine, with nearly 200k kilometers. Lately, it's been acting up. I'm getting a noticeable knocking sound – sounds like combustion is off. Power's down, it jerks when I accelerate, and there's a puff of smoke sometimes when I put my foot down. Plus, the computer's throwing error codes. Any ideas? Thinking maybe piston slap or pre-ignition?

Summary of the thread

A 2012 Peugeot 3008 with nearly 200,000 kilometers is experiencing a knocking sound, power loss, jerking during acceleration, and occasional smoke, accompanied by error codes. The problem may be due to issues like piston slap or pre-ignition. A suggested solution is to check the combustion chamber for deposits. After taking the car to a workshop, it was confirmed that the combustion chamber was indeed the issue, and cleaning it resolved the problem, improving the car's performance.

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4 comment(s)

BlackRider

I drive a 3008 as well and experienced comparable issues. Was the noise persistent or intermittent? And, approximately when did you first notice these symptoms?

luisehahn16 (community.author)

It's pretty persistent, especially when the engine's under load. Started maybe a month ago, gradually getting worse. What was it like for you?

BlackRider

My experience aligns; it became more pronounced over time. Given the symptoms, it may be related to combustion chamber deposits. I would recommend having the cylinder heads checked by a workshop.

luisehahn16 (community.author)

Thanks for the insight! Took it to the shop, and you were spot on – combustion chamber was a mess. Ended up costing me 425€ to get it sorted, but it's running much smoother now.

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PEUGEOT

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3008