Standard Ignition AC27 Idle Air Control Valve

Overview of Standard Ignition AC27 Idle Air Control Valve

The Standard Ignition AC27 Idle Air Control Valve is designed to regulate the engine's idle speed by controlling airflow. This component is compatible with various GM vehicles, including Buick, Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac models, ensuring precise idle control for optimal engine performance.

• Connector Shape: Oval for secure electrical connection
• Includes Gaskets for proper sealing
• Single Port design for efficient airflow management
• Four Terminal connections for reliable electrical interface
• Compatible with multiple GM makes and models

Detailed Product Description

The AC27 Idle Air Control Valve from Standard Ignition features an oval-shaped connector that ensures a stable and secure fit with the vehicle’s wiring harness. This valve includes gaskets to prevent air leaks, which is critical for maintaining consistent idle speed and engine stability. With one port and four terminals, the valve effectively manages airflow to the engine during idle conditions. It is engineered to meet or exceed OEM specifications, making it suitable for a wide range of GM vehicles such as the Chevrolet Camaro, Cadillac DeVille, Buick LeSabre, Pontiac Bonneville, and GMC C2500 series.

Compatible Vehicles and Applications

This idle air control valve is compatible with various GM models, including but not limited to:

• Buick Century, LeSabre, and Regal
• Cadillac 88, 98, DeVille, and Fleetwood
• Chevrolet Camaro, Caprice, Impala, and Corvette
• GMC C1500, C2500, C3500, and Suburban variants
• Oldsmobile Cutlass Ciera, Cutlass Cruiser, and Cutlass Supreme
• Pontiac Bonneville, Firebird, and Trans Sport

Common Issues Addressed by the AC27 Idle Air Control Valve

• Irregular or fluctuating engine idle speed
• Engine stalling during idle or low-speed operation
• Difficulty starting the engine or rough idle conditions
• Check engine light related to idle control system faults
• Reduced fuel efficiency due to improper air-fuel mixture at idle

Installation Notes and Tips

• Ensure the engine is cool before beginning installation to avoid injury
• Use the included gaskets to prevent air leaks and ensure proper sealing
• Verify the oval connector aligns correctly with the vehicle’s wiring harness
• Do not reuse old hardware; although hardware is not included, use OEM or equivalent fasteners
• After installation, clear any diagnostic trouble codes and perform an idle relearn procedure if required

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed original equipment standards. The AC27 Idle Air Control Valve undergoes rigorous testing to ensure durability and reliable performance. This part includes a limited warranty covering defects in materials and workmanship, providing confidence in its long-term operation within compatible Buick, Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac vehicles.