Dorman 994-322 Vapor Canister Purge Valve

Direct Replacement Vapor Canister Purge Valve

Dorman 994-322 is a direct replacement vapor canister purge valve for the evaporative emissions system. It is engineered for a precise fit and plug-and-play installation, with the connector and port layout needed for the listed Buick, Chevrolet, GMC, Oldsmobile, and Pontiac applications.

Compatible With 1995-1997 Chevrolet Camaro, 1996-1997 Buick Regal, and other 1995-1997 GM vehicles with a 10 mm vent port, this purge valve supports proper EVAP system operation and helps maintain emissions compliance.

• Direct replacement for the original equipment purge valve
• Designed for the evaporative emissions system
• Connector shape: oval, female connector, 2 terminals
• Plastic housing with 3 ports and no mounting bracket
• Includes connector hose
• Part number: 994-322

Detailed Product Overview

This Dorman vapor canister purge valve is built to match the original valve’s fit and function for the specified GM applications. It uses a plastic housing, an oval connector, and a 2-terminal electrical interface to support straightforward replacement on vehicles such as the Chevrolet Lumina, Pontiac Firebird, and Buick Century. The valve is a critical component in the evaporative emissions system, helping manage fuel vapor flow as part of normal engine and emissions control operation. Cross-reference part numbers for the same application include 24506192 and CP314.

Common Problems This Part Can Address

• Check engine light related to EVAP purge valve faults
• Fuel vapor control issues in the evaporative emissions system
• Rough idle or drivability concerns tied to purge valve malfunction
• Failed emissions inspection caused by purge system errors
• Vacuum or vapor routing problems at the purge valve connection points

Installation Notes and Tips

Verify the vehicle’s vent-port size and connector style before installation. This valve is listed for applications with a 10 mm vent port, and the fitment data should be matched to the exact year, make, and model. Inspect the hose connections, electrical connector, and surrounding EVAP lines for wear or cracking before installing the replacement part. The plug-and-play design supports direct replacement, but proper routing and secure hose attachment are important for reliable operation.

Quality Assurance

Dorman positions this purge valve as an OE-style replacement engineered for correct fit and function in the evaporative emissions system. It is built to meet government emissions requirements for the listed applications.

• Fits 1996-1997 Buick Century, N/A, w/10 mm Vent Port
• Fits 1996-1997 Buick Park Avenue, N/A, w/10 mm Vent Port
• Fits 1996-1997 Buick Regal, N/A, w/10 mm Vent Port
• Fits 1996-1997 Buick Riviera, N/A, w/10 mm Vent Port
• Fits 1995-1997 Chevrolet Camaro, N/A, w/10 mm Vent Port
• Fits 1996-1997 Chevrolet Lumina, N/A, w/10 mm Vent Port
• Fits 1996-1997 Chevrolet Monte Carlo, N/A, w/10 mm Vent Port
• Fits 1996-1997 Oldsmobile 88, N/A, w/10 mm Vent Port
• Fits 1996-1997 Oldsmobile Cutlass, N/A, w/10 mm Vent Port
• Fits 1996-1997 Oldsmobile Silhouette, N/A, w/10 mm Vent Port
• Fits 1996-1997 Pontiac Bonneville, N/A, w/10 mm Vent Port
• Fits 1995-1997 Pontiac Firebird, N/A, w/10 mm Vent Port
• Fits 1997 Pontiac Grand Prix, N/A, w/10 mm Vent Port
• Fits 1996-1997 Pontiac Trans Sport, N/A, w/10 mm Vent Port
• Fits 1996 Chevrolet Corsica, N/A, w/10 mm Vent Port
• Fits 1996 Chevrolet Lumina APV, N/A, w/10 mm Vent Port
• Fits 1996 Oldsmobile 98, N/A, w/10 mm Vent Port
• Fits 1996 Oldsmobile Cutlass Ciera, N/A, w/10 mm Vent Port
• Fits 1996 Oldsmobile Cutlass Supreme, N/A, w/10 mm Vent Port
• Fits 1995 Chevrolet Blazer, N/A, w/10 mm Vent Port
• Fits 1995 Chevrolet Cavalier, N/A, w/10 mm Vent Port
• Fits 1995 Chevrolet S10, N/A, w/10 mm Vent Port
• Fits 1995 GMC Jimmy, N/A, w/10 mm Vent Port
• Fits 1995 GMC Sonoma, N/A, w/10 mm Vent Port
• Fits 1995 Pontiac Sunfire, N/A, w/10 mm Vent Port