Dorman 977-779 Fuel Injection Throttle Body

Overview of the Dorman 977-779 Electronic Throttle Body

The Dorman 977-779 electronic throttle body is designed for precise air and fuel delivery in gas-powered vehicles. Engineered with an aluminum housing and integrated throttle position sensor, this component supports optimal engine performance for select Buick, Chevrolet, GMC, Pontiac, and Saturn models.

• Electronic throttle body with natural finish
• Includes throttle position sensor for accurate throttle response
• Aluminum housing for durability and heat resistance
• Blade-type electrical connector with 6 terminals
• Compatible with multiple GM vehicles including Buick LaCrosse and Chevrolet Malibu
• Bore diameter of 2.56 inches for proper airflow

Detailed Product Description

The Dorman 977-779 throttle body is a non-adjustable, electronically controlled component that regulates airflow into the engine's intake manifold. It features a 2.56-inch bore diameter and a natural aluminum finish, ensuring reliable operation under various driving conditions. The integrated throttle position sensor provides real-time feedback to the engine control unit, enabling precise throttle modulation. This throttle body is designed without fuel injectors, idle air control motor, or throttle body spacer, focusing solely on electronic throttle control. The blade-type connector with six terminals ensures secure and efficient electrical connections. Compatible with gas fuel systems, this throttle body is suitable for a range of GM vehicles including the Buick Allure, Chevrolet Cobalt, GMC Terrain, Pontiac G6, and Saturn Vue.

Compatible Vehicles and Applications

This Dorman electronic throttle body is compatible with the following makes and models:

• Buick Allure, LaCrosse, Regal
• Chevrolet Aura, Cobalt, Equinox, HHR, Malibu
• GMC Terrain
• Pontiac G5, G6, Solstice, Sky
• Saturn Vue

It is designed to replace the original electronic throttle body in these vehicles, ensuring proper air and fuel delivery for smooth engine operation.

Common Issues Addressed by This Throttle Body

• Erratic or unresponsive throttle response
• Engine stalling or rough idling
• Check engine light related to throttle position sensor faults
• Reduced engine power or hesitation during acceleration
• Poor fuel efficiency due to improper air intake regulation

Installation Notes and Tips

Installation of the Dorman 977-779 throttle body requires careful handling to avoid damage to the throttle position sensor and electrical connectors. Ensure the electrical connector is securely attached to the blade-type terminals. Since no gasket or seal is included, reuse the original or obtain a compatible replacement to prevent air leaks. This throttle body mounts directly to the intake manifold and is not adjustable. Professional installation is recommended to ensure proper calibration and avoid engine performance issues.

Quality Assurance and Warranty

Dorman manufactures this throttle body with durable aluminum housing and integrated sensors to meet OEM specifications. While specific warranty details are not provided here, Dorman products typically come with a limited warranty covering defects in materials and workmanship. Verify warranty terms with the product documentation or supplier.