What are the symptoms of a clogged carbon canister in the Citroen C-Quatre?
3 Answers
Symptoms of a clogged carbon canister in the Citroen C-Quatre: 1. Gasoline odor: A strong smell of gasoline from the car. 2. Gas ejection from the fuel tank: After parking the car in the sun for 1-2 hours, opening the fuel tank cap results in a large amount of gas ejection from the tank opening; this indicates the carbon canister is clogged or about to clog. 3. Difficulty starting: The car has trouble starting after being parked in the sun, requiring multiple attempts, but starts normally when not exposed to sunlight. 4. Fuel tank bulging: Prolonged driving causes the fuel tank to bulge, and the fuel gauge becomes inaccurate. Extended content, prevention and solutions: 1. Do not continue refueling after the pump automatically stops, and avoid pulling the nozzle out to fill near the tank opening or overfilling to the tank opening. 2. If the carbon canister is already clogged, promptly visit a 4S shop for replacement, preferably replacing the solenoid valve as well. 3. As a temporary solution when the car won't start after sun exposure, open the fuel tank cap to release gas before attempting to start.
Owners of Citroën C-Quatre may notice obvious symptoms of a clogged carbon canister. For instance, starting the car becomes much harder, sometimes requiring several attempts, which can be quite frustrating. At idle, the engine shakes noticeably, making the whole car feel like it's trembling. Additionally, fuel consumption increases significantly, with the car using noticeably more gas for the same distance. When refueling, you might hear unusual noises from the fuel tank, like a vacuum sound. There's also a strong gasoline smell from the exhaust, and in severe cases, the engine warning light on the dashboard will illuminate. These issues are easily noticeable during daily driving, and I recommend getting them checked early to avoid being stranded on the road. A simple preventive measure is not to overfill the fuel tank to avoid overloading the carbon canister. After all, the point of daily driving is convenience and peace of mind, and addressing these issues promptly can make driving more relaxed and enjoyable.
As an experienced car mechanic, I've seen numerous cases of Citroen C4 carbon canister clogging. Common symptoms include difficulty starting or frequent stalling, unstable idling causing RPM fluctuations, and unexplained significant increase in fuel consumption. When refueling, there will be abnormal sounds resembling vacuum noises near the fuel tank. In severe cases, there's obvious gasoline smell from the exhaust, and even the check engine light may come on. For diagnosis, first check the fuel tank cap's sealing - sometimes looseness alone can cause clogging. Then use a scanner to check system error codes to see if they're related to carbon canister failure. Don't underestimate this issue - delaying repairs may damage other components. Regular maintenance with periodic carbon canister filter replacement can prevent such troubles and keep your car in optimal condition.
