Dorman 911-684 EGR Valve

Reliable Electrical EGR Valve for Buick, Chevrolet, Oldsmobile, Pontiac

The Dorman 911-684 Exhaust Gas Recirculation (EGR) Valve is designed to meet the emission control needs of select Buick, Chevrolet, Oldsmobile, and Pontiac vehicles. This electronically operated EGR valve ensures precise control of exhaust gases to help maintain engine efficiency and reduce emissions.

• Electrical operation type for accurate exhaust gas recirculation
• Blade terminal type with 5 terminals for secure electrical connections
• Includes a gasket kit for proper sealing during installation
• Oval-shaped single connector for compatibility with factory wiring harness
• Bolted mounting type for stable and secure attachment
• Compatible with Buick 88, 98, LeSabre, Park Avenue, Chevrolet Lumina APV, Oldsmobile Silhouette, and Pontiac Bonneville, Regal, Riviera, Trans Sport models

Product Details and Specifications

The Dorman 911-684 EGR valve operates electronically, providing precise modulation of exhaust gases back into the intake manifold. This helps reduce nitrogen oxide emissions and supports engine performance. The valve features a blade terminal type with five terminals and a single oval-shaped connector, ensuring a reliable electrical connection. The package includes one EGR valve and a gasket kit, but mounting hardware is not included. The valve mounts securely with bolts, matching the original equipment mounting style. There are no vacuum ports or exhaust ports on this valve, consistent with its electronic operation.

Compatible Vehicles and Applications

This EGR valve is compatible with a range of General Motors vehicles, including Buick 88 and 98, LeSabre, Park Avenue; Chevrolet Lumina APV; Oldsmobile Silhouette; and Pontiac Bonneville, Regal, Riviera, and Trans Sport. It is designed to replace the original electronically operated EGR valves in these models, ensuring proper fit and function.

Common Issues Addressed by the Dorman 911-684 EGR Valve

• Engine rough idle or stalling due to faulty EGR valve operation
• Increased emissions or failed emissions tests
• Check engine light triggered by EGR system faults
• Reduced fuel efficiency caused by improper exhaust gas recirculation
• Engine knocking or pinging related to EGR valve malfunction

Installation Notes and Tips

Installation requires removal of the old EGR valve and proper cleaning of the mounting surface. Use the included gasket kit to ensure a tight seal and prevent exhaust leaks. The valve mounts with bolts (not included), so retain original hardware or source compatible bolts. Connect the oval-shaped electrical connector securely to the blade terminals. No vacuum lines are needed for this electronically operated valve. Verify all connections before starting the engine.

Quality Assurance and Warranty

Dorman parts are engineered to meet or exceed OEM specifications for fit, form, and function. The 911-684 EGR valve undergoes quality testing to ensure reliable operation in emission control systems. Warranty coverage details can be obtained from the product documentation or manufacturer.