EVAP System Components:
The major components of the EVAP system are:
Fuel Tank:
The fuel tank obviously stores the gasoline after you fill-up. But, you recognize when people tell you not to continue filling the tank after the pump automatically stops? That’s because the tank has some expansion space at the highest therefore the fuel can expand without overflowing or forcing the EVAP system to leak.
Gas Cap:
Tighten until click. The gas cap seals off the filler neck of the storage tank from the surface atmosphere. Damaged or missing gas caps are the foremost common explanation for EVAP system failure codes that trigger the check engine light.
Liquid-Vapor Separator:
This prevents liquid gasoline from entering the EVAP canister, which might overload its ability to store fuel vapors.
EVAP Canister:
This canister is connected to the fuel tank by the tank vent line. The EVAP canister houses 1-2 pounds of carbon that acts sort of a sponge by absorbing and storing fuel vapors until the purge valve opens and allows the vacuum of the engine intake to siphon the fuel vapors from the charcoal into the engine manifold.
Vent Control Valve:
This allows the flow of the fuel vapors from the fuel tank into the EVAP canister.
Purge Valve/Sensor:
Allows engine intake vacuum to siphon the precise amount of fuel vapors from the EVAP canister into the engine manifold.
Vent Hoses:
The means by which the fuel vapors flow to different components of the EVAP system.
Fuel Tank Pressure Sensor:
Monitors the pressure within the fuel tank for leaks and to form sure an excessive amount of pressure doesn’t build.
Fuel Level Sensor:
Monitors the extent of fuel within the tank. Read and learn about car Technical FAQ and get in-depth details of the car features.
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