Get Buick Lesabre Vapor Canister Purge Solenoid. Locate Buick Lesabre Purge Valve Replacement Cost & Buick Lesabre Purge Valve Solenoid. Maintaining the vapor canister purge solenoid in your Buick Lesabre is crucial for optimal performance, as it controls the flow of fuel vapors from the canister to the engine. To extend its lifespan, regularly check for cracks or damage and replace the solenoid if your car exhibits rough idling or trouble starting—these are telltale signs of failure. When selecting a replacement, opt for OEM or high-grade aftermarket solenoids that match your Lesabre's specifications. For seamless installation, ensure the solenoid is compatible with your vehicle's model year and engine type, and always disconnect the battery before attempting to replace the component. With the right part and proper care, your emission system will function efficiently, keeping your Buick Lesabre running smoothly.