How to Install Buick Excelle Carbon Tank Solenoid Valve

Just change the solenoid valve and remove it directly.

Open the hood of the vehicle, we find the switch of the solenoid valve, turn off the solenoid valve, and then remove the fixing screw.

Gasoline is volatile, so the fuel tank must have ventilation system, otherwise it will explode sooner or later. In early cars, the fuel tank cover was made into a pressure limiting valve. As long as the pressure in the oil tank reaches the set threshold, the pressure limiting valve will open, and the oil tank will be directly ventilated with the atmosphere, which solves the pressure problem, but it is both wasteful and polluting the environment. So, there was the later carbon canister.