Dorman 977-359 Fuel Injection Throttle Body

Overview of Dorman Fuel Injection Throttle Body 977-359

The Dorman 977-359 fuel injection throttle body is designed for precise electronic throttle control in select Buick and Chevrolet models. Engineered with a cast aluminum housing and integrated throttle position sensor, this throttle body supports efficient fuel delivery for gas engines.

• Compatible with Buick Encore and Chevrolet Cruze, Cruze Limited, Sonic, and Trax
• Electronic throttle body with a 1.96-inch bore diameter
• Includes throttle position sensor for accurate throttle response
• Constructed from durable cast aluminum with a metal finish
• Features a 6-terminal blade-type female socket electrical connection

Technical Details and Features

The Dorman 977-359 throttle body is a non-adjustable, electronically controlled component designed specifically for gas fuel systems. It features a 1.96-inch bore diameter to regulate airflow precisely. The throttle position sensor is included to provide real-time feedback to the engine control unit, ensuring optimal throttle response and fuel efficiency. The housing is made from cast aluminum, offering strength and heat resistance, while the metal finish enhances durability. Electrical connections utilize a 6-terminal blade-type female socket for secure and reliable connectivity. This throttle body does not include fuel injectors, idle air control motor, gaskets, seals, or throttle body spacers.

Compatible Vehicles and Applications

This fuel injection throttle body is compatible with the following vehicles:

• Buick Encore
• Chevrolet Cruze and Cruze Limited
• Chevrolet Sonic
• Chevrolet Trax

It is designed to replace the original electronic throttle body in these models, helping to restore proper throttle function and engine performance.

Common Issues Addressed by This Throttle Body

• Erratic or unresponsive throttle behavior
• Check engine light related to throttle position sensor faults
• Reduced engine power or poor acceleration
• Engine stalling or rough idle conditions
• Throttle body mechanical wear or electronic failure

Installation Notes and Tips

Installation of the Dorman 977-359 throttle body requires careful handling to avoid damage to the throttle position sensor and electrical connectors. Ensure the mating surfaces are clean and free of debris before installation. Since this part does not include gaskets or seals, use the original or appropriate replacement components. Electrical connections should be securely fastened to prevent intermittent faults. Professional installation is recommended to ensure proper calibration and throttle response.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM specifications, providing reliable performance and durability. While specific warranty details for part number 977-359 are not provided here, Dorman typically offers limited warranties covering defects in material and workmanship. Refer to the product documentation or manufacturer for exact warranty terms.