What happens when a canister purge solenoid fails?
The canister purge solenoid is the component in the EVAP system that is responsible for “purging” the EVAP system, by acting as the switch that allows the vapor into the engine. When the purge solenoid fails, it will cause problems for the EVAP system, which will affect the vehicle’s emissions output levels.
How is the canister purge valve in an engine controlled?
The flow of these vapours is controlled by your canister purge valve, which regulates when and how much of these vapours enter your engine. The canister purge valve is electrically operated, and is also referred to commonly as a solenoid.
How can I tell if my canister purge valve is failing?
Check Engine Light Is On. The first sign of trouble for your canister purge valve is the check engine light. Your canister purge valve is controlled by your car’s computer, which allows it to monitor its performance. If your car’s computer detects higher or lower than expected purging from the valve, it will illuminate the check engine light.
What causes a check engine light on a purge solenoid?
If the computer detects any problem with the purge solenoid circuit or signal, it will set off the Check Engine Light to alert the driver that a problem has occurred. A Check Engine Light can also be caused by a wide variety of other problems, so it is recommended to have the vehicle scanned for trouble codes to be sure. 5. Low Fuel Economy
What does the canister purge solenoid do in a charcoal engine?
The EVAP system traps this vapor in a charcoal canister and recirculates it for use as fuel for the engine and prevented from polluting the environment. The canister purge solenoid — also referred to as an EVAP canister valve — is responsible for “purging” the EVAP system by acting as the switch that allows the vapor into the engine.
Can a bad canister purge solenoid cause poor gas mileage?
Poor gas mileage is another sign of a [&failing&] [&canister&] purge valve. The [&fuel&] [&vapors&] your car usually uses for combustion [&will&] end up vented through the EVAP [&canister&] instead. Instead of reaching the combustion chamber, gasoline gets burned up before it engages in the combustion process.
How does the fuel canister purge system work?
Modern vehicles are equipped with an EVAP system that works to reduce the evaporative emissions pollution that can come from the vehicle’s fuel tank, which is released in the form of vapors. The EVAP system traps this vapor in a charcoal canister and recirculates it for use as fuel for the engine and prevented from polluting the environment.
If the computer detects any problem with the purge solenoid circuit or signal, it will set off the Check Engine Light to alert the driver that a problem has occurred. A Check Engine Light can also be caused by a wide variety of other problems, so it is recommended to have the vehicle scanned for trouble codes to be sure. 5. Low Fuel Economy