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emilia_fire6

Focus diesel EGR valve issue

I've got a 2011 Ford Focus diesel with some issues. Engine power is down, check engine light is on, and it's smoking and running rough when I accelerate. Fuel consumption is up, and it's jerking with a hissing sound during acceleration. Could it be the EGR valve?

Summary of the thread

A 2011 Ford Focus diesel is experiencing reduced engine power, a check engine light, increased fuel consumption, rough running, smoke, jerking, and a hissing sound during acceleration. These symptoms suggest a potential issue with the EGR valve, which can cause such problems if defective or jammed. A mechanic confirmed the EGR valve was the cause, and replacing it resolved the issues.

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4 comment(s)

thomaslorenz1

I also drive a Focus with a diesel engine. Have you considered the catalytic converter? I had similar symptoms a while back. Have you checked for any vacuum leaks?

emilia_fire6 (community.author)

Thanks for the tips! I haven't checked the catalytic converter or vacuum leaks yet. If it was a faulty EGR, how did you figure it out?

thomaslorenz1

I didn't have smoke when accelerating, so it might be something else. My rough idle went away after replacing the EGR valve. I'd recommend taking it to a workshop.

emilia_fire6 (community.author)

Just wanted to let you know it was the EGR valve! A mechanic confirmed it was defective and jammed. The repair cost 355€ including parts and labor. Thanks for the help diagnosing it!

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FORD

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FOCUS