Signs of Evaporative Emission Control Canister Failure

There are various systems in a car which play an active role in the emission control of the vehicle and the evaporative emission control canister is among them.

The harmful gases can burn the nose, and can be very dangerous if inhaled causing nausea, headaches and breathing problems.

The amount of fuel vapors that can escape from a vehicle are strictly regulated, and the evaporative emission control canister helps in regulating the emission of fuel vapors.

Fuel that evaporates into vapor is stored in the charcoal canister for later use in the engine as an important part of the air/fuel mixture.

Let us discuss in detail about the evaporative emission control canister and signs of its failure.

When fuel vapors are produced inside the fuel tank due to evaporation, they are collected in the charcoal canister, or evaporative emission control canister.

Then the engine control module sends the fumes collected in the charcoal canister are purged through a valve and sent into the engine to burn as part of the air/fuel mixture.

Dust & debris from regular driving conditions can accumulate in the emission control canister, causing the purge and vent solenoids or valves to malfunction.

Moreover, the charcoal canister can crack either due to impact or harsh environmental condition.

If this occurs, raw fuel or fuel vapors are lost into the environment around your vehicle, and a noticeable fuel smell can occur.

Here are the signs of evaporative emission control canister failure-

The check engine light can illuminate for many reasons but if the illumination is combined with gasoline smell, then the evaporative emission control canister has failed.

You should immediately take your car for an inspection to determine the exact cause for illumination of the check engine light.

When the evaporative emission control canister undergoes a serious failure, then in some cases the gas tank can actually collapse.

Moreover, when you are removing the gas cap and experience a whooshing sound, then the issue is related to the evaporative emission control canister.

Furthermore, if you are smelling raw fuel when you are standing at the back of your car, then it is a possibility that the evaporative emission control canister has failed.

Whenever, you notice these signs take your car to an automotive repair shop to fix the issue quickly as delaying it can worsen the problem.

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