Dorman 994-022 Vapor Canister Purge Valve

Overview of Dorman Vapor Canister Purge Valve 994-022

The Dorman 994-022 vapor canister purge valve is designed for reliable emission control in select Chevrolet, Oldsmobile, Pontiac, and Saturn vehicles. This purge valve helps regulate fuel vapor flow, supporting your vehicle's evaporative system to reduce emissions effectively.

• Connector hose inside diameter: 7.5 mm
• Oval-shaped female connector with 1 connector quantity
• Two male terminals with pin-type terminal design
• Plastic housing for durability and corrosion resistance
• Two mounting holes with diameters of 8.6 mm and 6.4 mm
• Overall length of 112 mm for precise fitment
• Two ports with outside diameters of 11 mm and 8 mm
• Inlet inside diameter of 5.6 mm
• Thread diameter of 8 mm

Detailed Product Description

The Dorman 994-022 vapor canister purge valve is engineered to meet the specifications required for proper operation within the evaporative emission control system of Chevrolet Alero, Cavalier, Classic, Pontiac Grand Am, Sunfire, and Saturn Vue models. Its plastic housing ensures resistance to heat and chemical exposure, while the oval-shaped female connector and pin-type male terminals provide secure electrical connections. The valve features two ports with precise outside diameters (11 mm and 8 mm) and an inlet inside diameter of 5.6 mm, facilitating accurate vapor flow control. The dual mounting holes allow for stable installation without included hardware, ensuring compatibility with factory mounting points.

Common Applications and Issues Addressed

• Prevents fuel vapor leaks in the evaporative system
• Helps maintain proper engine performance by controlling vapor purge
• Reduces check engine light triggers related to EVAP system faults
• Supports emission compliance for Chevrolet, Oldsmobile, Pontiac, and Saturn vehicles
• Addresses rough idling or poor fuel economy caused by faulty purge valves

Installation Notes and Tips

When installing the Dorman 994-022 purge valve, ensure the oval female connector aligns correctly with the vehicle’s wiring harness. Verify the two mounting holes match the factory locations for secure attachment. Since mounting hardware is not included, reuse existing fasteners or source appropriate replacements. Confirm all vacuum and electrical connections are tight to prevent leaks or electrical faults. This part is compatible with specific models including Chevrolet Alero, Cavalier, Classic, Pontiac Grand Am, Sunfire, and Saturn Vue, so verify fitment before installation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 994-022 vapor canister purge valve undergoes rigorous quality control to ensure durability and reliable operation within the evaporative system. While specific warranty details are not provided here, Dorman typically offers limited warranties covering defects in material and workmanship. Consult product documentation or the manufacturer for exact warranty terms.