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theresahartmann3

Prisma exhaust flap issue

My 2007 Chevrolet Prisma with a gasoline engine is giving me headaches. I've got 198941 km on it. The exhaust flaps seem to be acting up. I'm getting an error code, the exhaust is louder than usual, and the engine sounds rough on cold starts. I'm guessing the exhaust flap is defective, but I wanted to see if anyone else has run into this before I start throwing parts at it.

Summary of the thread

A 2007 Chevrolet Prisma with a gasoline engine is experiencing issues with the exhaust flap, leading to error codes, increased exhaust noise, and a rough engine sound on cold starts. The problem is suspected to be a defective exhaust flap, which is confirmed by similar experiences from others. The recommended solution is to have a professional workshop assess and repair the issue, which successfully resolved the problem by replacing the defective exhaust flap.

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4 comment(s)

jennifer_eagle1

Interesting. I had a similar issue with my old Opel Astra. Same symptoms: error in the memory, increased exhaust noise, and a rattling engine upon starting. In my case, it was indeed the exhaust flap. Was your Chevrolet making a metallic clanging noise when you started it?

theresahartmann3 (community.author)

Yeah, come to think of it, there is a kind of metallic clanging sound at startup! It's hard to describe. Did you end up replacing the whole exhaust system on your Opel?

jennifer_eagle1

Based on your description, it certainly sounds like the exhaust flap. I strongly advise against attempting a DIY repair of the exhaust system. Due to the potential impact on engine performance and emissions, I recommend a visit to a qualified workshop for a professional assessment and repair.

theresahartmann3 (community.author)

Thanks for the advice! I took it to the workshop, and you were spot on. Turns out the exhaust flap was defective. They replaced it, and it cost me 190€. The error is gone, and the car sounds normal again.

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CHEVROLET

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PRISMA