Dorman 994-093 Vapor Canister Vent Valve

Reliable Vapor Canister Vent Valve for GM Vehicles

The Dorman 994-093 Vapor Canister Vent Valve is designed to maintain proper evaporative emissions control in a variety of GM vehicles. Engineered from durable black plastic, this universal fit valve ensures consistent performance in models like Chevrolet Silverado, GMC Sierra, and Cadillac DeVille.

• Constructed from high-quality black plastic for durability
• Universal fit compatible with multiple GM makes and models
• Male end connections with 0.33 inch outside diameter for secure hose attachment
• Single inlet and outlet design for efficient vapor flow
• Compact length of 3.31 inches for easy integration

Product Details and Specifications

The Dorman 994-093 vapor canister vent valve is a critical component in the evaporative system, controlling the release of fuel vapors from the charcoal canister to the engine intake. Made from robust plastic, this valve features male connectors on both ends with a 0.33 inch outside diameter, ensuring a tight and leak-free fit with the vehicle’s vapor hoses. Its universal design allows compatibility across a wide range of GM vehicles including Buick, Chevrolet, GMC, Pontiac, and Oldsmobile models such as the Blazer, Camaro, Impala, and Yukon. The valve measures 3.31 inches in length, making it suitable for various engine bay configurations without requiring modifications.

Common Applications and Problem Resolution

• Prevents fuel vapor leaks that can trigger the check engine light
• Maintains proper pressure in the evaporative emissions system
• Helps reduce harmful hydrocarbon emissions from the fuel system
• Resolves issues related to rough idling caused by faulty purge valve operation
• Supports compliance with emissions regulations in compatible GM vehicles

Installation Notes and Tips

When installing the Dorman 994-093 vapor canister vent valve, ensure that the male hose ends are securely connected to the corresponding vapor lines. Verify that the valve orientation matches the original part to maintain proper vapor flow direction. Since mounting hardware is not included, reuse existing brackets or clamps as needed. Inspect surrounding hoses and fittings for wear or damage during replacement to prevent future leaks.

Quality Assurance and Warranty

Dorman manufactures this vapor canister vent valve to meet or exceed OEM specifications for fit and function. The plastic construction is designed to withstand typical engine bay temperatures and chemical exposure. While specific warranty details are not provided, Dorman products generally come with a limited warranty covering defects in material and workmanship.