If the carbon canister solenoid valve of a car is damaged, the vehicle may experience an abnormal increase in fuel consumption. In severe cases, there may be anomalies in the air-fuel mixture concentration, excessive oil vapor in the engine, and weak ignition. If the carbon canister solenoid valve is confirmed to be damaged, it is advisable to go to a repair shop for a replacement as soon as possible to avoid affecting the normal operation of the vehicle's engine.
The primary function of the carbon canister is to adsorb and filter the gasoline vapors inside the fuel tank. Through the solenoid valve control, it allows the fuel vapors to enter the engine for combustion. This process helps reduce fuel consumption and prevent excessive pressure inside the fuel tank. Another fault symptom arising from a clogged carbon canister is the release of gas when opening the fuel tank cap, indicating the gasoline vapors inside the tank cannot be vented out. This also requires a timely replacement.
Some misinterpretations suggest that the carbon canister solenoid valve's fault is evident when the engine operates at non-idle states, specifically when the engine runs at speeds above 800 revolutions per minute (RPM). During this, a frequent "click-click" sound is often heard. In such cases, one should first locate the carbon canister solenoid valve, which may vary depending on the vehicle model. Some are located near the engine's front cover. By listening closely, one can determine whether the "click-click" sound is emanating from it. If it is, this is a normal phenomenon, as the carbon canister solenoid valve will produce a "click-click" intermittent switching action when in operation.
