Is it dangerous to drive with a faulty vapor vent solenoid?

Driving with faulty vapor vent solenoid is not dangerous in terms of safety, as it does not affect the vehicle's handling, emergency response, or other operational aspects. The primary issue with a faulty vapor vent solenoid is that the vehicle's emission system malfunctions, leading to environmental and fuel efficiency concerns.

The failure of the solenoid may cause the fuel vapors stored in the canister to be reintroduced to the fuel tank instead of being filtered and directed back to the engine. This can result in a strong gasoline smell around the vehicle, increased emissions, and decreased fuel economy. However, it does not directly pose immediate safety risks or mechanical failures that would make the vehicle unsafe to operate.