marvinmond69
Peugeot 407 rough idle and misfires
Summary of the thread
A 2008 Peugeot 407 is experiencing rough idling, increased fuel consumption, power loss, and misfires, particularly when the engine is cold. The issue may be linked to a clogged injector valve or a defective injection nozzle. It is advised to have a mechanic inspect the vehicle to confirm and address the problem, potentially preventing further complications.
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4 comment(s)
marvinmond69 (community.author)
Misfires...yes! Now that you mention it. Rough running in the first few minutes especially. How did you solve this problem?
josepheule6
If it is what I suspect, it ended up being a clogged injector valve which probably resulted in defective injection nozzle. I'd get it checked out by a mechanic. It could save you a headache in the long run.
marvinmond69 (community.author)
Right, that's what I was dreading. Okay, I'll book it in at the workshop, thanks for confirming my suspicions! It ended up costing me 515€.
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PEUGEOT
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407
josepheule6
Sounds familiar. I've got a 407 as well, though, I don't know if it's the same year, and those symptoms sound similar to what I was experiencing. Are you getting any misfires or rough running, especially when the engine is cold?