Standard Ignition AV56 Secondary Air Injection Pump Check Valve

Reliable Secondary Air Injection Pump Check Valve for GM Vehicles

The Standard Ignition AV56 Secondary Air Injection Pump Check Valve is designed to maintain proper airflow in the emission control system of select GM trucks and SUVs. This check valve ensures efficient operation of the secondary air injection pump, helping to reduce harmful emissions in vehicles like the Chevrolet Silverado and GMC Sierra.

• Durable check valve construction for consistent performance
• Compatible with multiple GM makes including Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac
• Fits a wide range of models such as Avalanche 2500, Silverado 1500, Tahoe, and Yukon XL 2500
• OEM-quality replacement part with part number AV56
• Designed to support proper air injection system function and emission control

Product Details and Compatibility

This Standard Ignition AV56 check valve is a critical component of the secondary air injection system, which helps reduce exhaust emissions during cold starts. The valve prevents exhaust gases from flowing back into the air injection pump, protecting the system and ensuring optimal operation. It is compatible with a broad range of GM vehicles, including Chevrolet models like the Camaro, Impala, and Suburban 1500, as well as GMC trucks such as the Sierra 2500 HD and Yukon XL 1500. This part is also suitable for Cadillac Escalade and Pontiac Firebird models, making it a versatile choice for emission control maintenance.

Common Applications and Issues Addressed

• Prevents backflow of exhaust gases into the secondary air injection pump
• Helps maintain proper air injection system pressure and flow
• Reduces risk of pump damage caused by exhaust contamination
• Supports emission control compliance by ensuring system efficiency
• Addresses check valve failure symptoms such as rough idle or increased emissions

Installation Notes and Tips

When installing the Standard Ignition AV56 check valve, ensure the valve is oriented correctly to allow airflow in the proper direction. Inspect the surrounding hoses and connections for wear or damage and replace as necessary to maintain system integrity. It is recommended to follow the vehicle manufacturer’s service manual for specific installation procedures and torque specifications. Proper installation will help maintain the longevity and performance of the secondary air injection system.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, providing reliable performance and durability. The AV56 check valve undergoes quality control testing to ensure proper function within the emission control system. While specific warranty details may vary, Standard Ignition typically offers a limited warranty covering defects in material and workmanship. Refer to the product documentation for exact warranty terms.