lukas_fuchs1

SM3 Engine Stalling

My 2019 Renault SM3 with a gasoline engine has a check engine light and stalls at idle at 55970 km. I think it's the tank ventilation valve. Could a clogged hose cause this, or should I check other things in the EVAP system?

4 comment(s)

I had a similar issue with my Renault SM3. Did you check the gas cap? A bad seal can mess up the EVAP system. Also, is the purge valve working right? Is it stuck open or closed?

The gas cap looks okay, but I'll check it closer. How can I test the purge valve without taking it out? Could the fuel tank itself be the problem?

Given the symptoms, I'd guess it's the tank ventilation system, especially the hoses. Instead of trying to fix it yourself, maybe take it to a shop. They can find the problem without guessing.

Thanks for the help. I took it to a technician, and they found blocked tank ventilation hoses that needed to be replaced. It cost 175€, which seems fair.

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