What is a canister purge solenoid?
The canister purge solenoid—sometimes referred to as the canister purge valve—is part of your vehicle’s evaporative emission control (EVAP) system and works to prevent vapor from the fuel cell from escaping into the cabin and atmosphere.
The canister purge solenoid allows the exact amount of required fuel vapors from the EVAP canister to enter the intake manifold. So when your engine is running, the canister purge valve opens, and it closes when the engine is off. The vapor travels from a charcoal canister to the engine, where it is burned during the engine’s combustion process.
When should I replace the canister purge?
You should take your car to an automotive repair shop for an inspection if you notice the following warning signs:
Trouble starting the engine after refilling the gas tank
In some cases, you might also notice black smoke coming from the exhaust.
How often should a canister purge solenoid be replaced?
Canister purge solenoids won’t be listed under your vehicle's regular maintenance schedule
since they should last as long as your vehicle. However, the valve could experience wear and tear, so look for warning signs to know if you need to replace your canister purge solenoid. Can I replace my canister purge solenoid myself?
You can replace your canister purge solenoid at home if you have the right tools and experience with DIY auto repair, but it’s essential for your vehicle’s overall performance that the job is done right. So, in most cases, it’s best to let a professional handle your canister purge solenoid replacement.