Dorman 911-398 Vapor Canister Purge Valve

Overview of Dorman Vapor Canister Purge Valve 911-398

The Dorman Vapor Canister Purge Valve 911-398 is designed for precise emission control in select Toyota and Scion vehicles. This component plays a critical role in managing fuel vapor flow, helping maintain your vehicle's evaporative system efficiency.

• Compatible with Toyota Echo, Scion xA, and Scion xB models
• Durable housing constructed from both metal and plastic materials
• Features two vacuum ports with 8 mm outside diameter connectors
• Includes one vent control valve and a mounting bracket with hardware
• Blade-type terminals with two male terminals and one female rectangular connector
• Compact length of 78.8 mm for easy integration

Detailed Product Description

The Dorman 911-398 vapor canister purge valve is engineered to regulate the flow of fuel vapors from the charcoal canister to the intake manifold. Its dual vacuum ports, each with an 8 mm outside diameter, ensure proper vapor routing and system functionality. The valve's housing combines metal and plastic for balanced durability and corrosion resistance. The connector features a female rectangular shape with a 0.33-inch inside diameter hose connection, supporting a single connector with two male blade terminals for secure electrical engagement. This valve comes complete with mounting hardware and a bracket, facilitating straightforward installation in compatible Toyota Echo, Scion xA, and Scion xB vehicles.

Common Applications and Issues Addressed

• Prevents fuel vapor leaks that can trigger the check engine light
• Helps maintain proper evaporative emission system pressure
• Resolves rough idling caused by faulty purge valve operation
• Improves fuel efficiency by controlling vapor flow accurately
• Reduces hydrocarbon emissions for environmental compliance

Installation Notes and Tips

Installation of the Dorman 911-398 purge valve requires disconnecting the old valve and replacing it with the new unit using the included mounting bracket and hardware. Ensure the vacuum ports and electrical connectors are securely attached to prevent leaks or electrical faults. The blade terminals should be connected carefully to avoid damage. Verify that the hose inside diameter matches the 0.33-inch specification for a proper seal. It is recommended to inspect related evaporative system components during installation for optimal performance.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. The 911-398 vapor canister purge valve undergoes rigorous quality control testing. This part includes a limited warranty covering defects in material and workmanship, providing confidence in its long-term operation within Toyota Echo, Scion xA, and Scion xB vehicles.