Dorman 977-360 Fuel Injection Throttle Body

Overview of Dorman Fuel Injection Throttle Body 977-360

The Dorman 977-360 fuel injection throttle body is designed for precise electronic throttle control in select Chevrolet, GMC, Isuzu, and Saab vehicles. Engineered with a cast aluminum housing and integrated throttle position sensor, this throttle body supports efficient fuel delivery for gas engines.

• Compatible with Chevrolet Trailblazer, GMC Envoy, Isuzu Ascender, and Saab 9-7x models
• Electronic throttle body with integrated throttle position sensor
• 3.154-inch bore diameter for optimized airflow
• Durable cast aluminum housing with metal finish
• Blade-type electrical connector with female socket and 6 terminals

Technical Details and Features

This Dorman fuel injection throttle body (part number 977-360) features a non-adjustable electronic throttle design tailored for gas fuel systems. The throttle body includes a built-in throttle position sensor to provide accurate feedback to the engine control unit, ensuring smooth throttle response. The 3.154-inch bore diameter supports proper air intake volume, while the cast aluminum housing offers strength and heat resistance. The electrical connection uses a 6-terminal blade connector with a female socket for secure and reliable wiring integration.

Applications and Common Issues Addressed

This throttle body is compatible with specific models including Chevrolet Trailblazer, GMC Envoy, Isuzu Ascender, and Saab 9-7x. It is intended to replace faulty or worn throttle bodies that may cause:

• Erratic or unresponsive throttle control
• Check engine light related to throttle position sensor faults
• Reduced engine performance or stalling at idle
• Poor fuel efficiency due to improper air-fuel mixture
• Throttle hesitation or surging during acceleration

Installation Notes and Tips

Installation of the Dorman 977-360 throttle body requires removal of the existing throttle body and careful connection of the 6-terminal blade electrical connector. Note that this part does not include a gasket or installation hardware, so ensure compatible gaskets and mounting bolts are available. Proper torque specifications should be followed to avoid air leaks. After installation, a throttle body relearn procedure may be necessary to calibrate the electronic throttle control system.

Quality Assurance and Warranty

Dorman manufactures this fuel injection throttle body to meet or exceed OEM standards for fit, form, and function. The cast aluminum construction and integrated throttle position sensor are tested for durability and performance. While specific warranty details are not provided here, Dorman typically offers limited warranties on their replacement parts to ensure customer confidence and product reliability.