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Peugeot 806 Exhaust Flap Issue

My 2001 Peugeot 806, gasoline engine, has a weird exhaust issue. Error codes, louder exhaust, and rattling on cold starts. I suspect the exhaust flaps. Anyone else had this on their 806?

A 2001 Peugeot 806 exhibited a loud exhaust, error codes, and rattling on cold starts, suspected to be due to faulty exhaust flaps. The issue was identified as a problem with the exhaust flap actuator, possibly involving broken wiring. A professional diagnosis confirmed the exhaust flap was faulty, and replacing it resolved the issue, restoring normal function.

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4 comment(s)

I had a similar issue with my 806. Loud exhaust, error codes. Sounds like the exhaust flap actuator. Have you checked the flap motor and wiring? A broken wire is common.

Thanks! I'll check the wiring. Where's the flap motor located? Is it easy to reach? Were your symptoms constant?

On my model, it was accessible from underneath, near the catalytic converter. Before you go too far, get a professional diagnosis to avoid damage. If it's the flap, the whole exhaust might need replacing.

Cheers! The shop confirmed the exhaust flap was knackered. A new one fixed it. Cost 190€, parts and labor. Pricey, but it's sorted. Now it purrs!

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