LuxeRider
Hyundai H1 EGR Valve Problem
Summary of the thread
The 2013 Hyundai H1 diesel is experiencing diminished engine power, a check engine light, smoke during acceleration, rough running, increased fuel consumption, jerking, and a loud hissing noise. These symptoms suggest a defective EGR valve, which can disrupt the air/fuel mixture and cause performance issues, especially when the engine is cold. The recommended solution is to have the EGR valve checked and replaced by a workshop to prevent further damage, such as to the catalytic converter.
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4 comment(s)
LuxeRider (community.author)
The rough running seems to be more pronounced when the engine is cold, but it does persist to a lesser degree even after the engine has reached its operating temperature. Does this provide any further clues as to whether it could be the EGR valve?
uweflamme8
Okay, the cold-start issue definitely points to the EGR valve. It's probably jammed open or closed, messing with the air/fuel mixture when the engine needs it most. Think of it like trying to run a marathon with a stuffy nose – you'll struggle! Honestly, with all those symptoms, it's best to get it checked by a workshop. They can properly diagnose it and replace the EGR valve. Driving it like this could eventually damage your catalytic converter, and that's a way more expensive fix!
LuxeRider (community.author)
I appreciate your advice. I took the Hyundai to a workshop, and indeed, the EGR valve was found to be defective. The total repair cost came to 355€.
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HYUNDAI
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H1
uweflamme8
Whoa, sounds like your H1 is throwing a tantrum! Reduced power, smoke, and that check engine light on? Yep, that EGR valve is the usual suspect when things go haywire with diesel engines. Think of it like this: the EGR valve is like the lungs of your car, and if it's clogged up or stuck, your car can't breathe right. The hissing could be exhaust escaping where it shouldn't. Is the rough running happening all the time, or just when the engine is cold?