sinaschneider1
Fiesta EGR Valve Smoke Hissing
Summary of the thread
A 2009 Ford Fiesta with a diesel engine is experiencing reduced power, constant check engine light, excessive smoke, a rough ride, and a loud hissing noise. These issues are suspected to be related to a defective EGR valve, potentially causing a vacuum leak and affecting vehicle emissions. The suggested solution is to have the vehicle checked by a workshop, where it was confirmed that the EGR valve was faulty, leading to necessary repairs.
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4 comment(s)
sinaschneider1 (community.author)
Good question! No, the smoke and hissing are new. I thought it might be related, like a domino effect from a bad EGR valve messing with vehicle emissions or the catalytic converter. Or maybe a vacuum leak amplified by the EGR issue? Is it still safe to drive?
StefLeh92
Ah, okay, the extra symptoms do make it sound worse. Mine never got that bad, just rough idle and poor fuel economy. Given the smoke and hissing, I'd definitely get it checked out by a workshop ASAP. Probably not a good idea to keep driving it like that. Do you know when you last had your car serviced?
sinaschneider1 (community.author)
I appreciate the advice. I took it to the workshop, and you were right – it was a defective EGR valve! The hissing was indeed related, a vacuum leak caused by the faulty valve. Repair ended up costing me around 355€. Hopefully, this fixes everything!
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FORD
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FIESTA
StefLeh92
Sounds familiar! I have a Fiesta too. Reduced power and the check engine light… yep. But smoke? Hissing? Those weren't happening with mine. Was it doing that before the other problems?