Dorman 977-792 Fuel Injection Throttle Body

Overview of Dorman 977-792 Electronic Throttle Body

The Dorman 977-792 electronic throttle body is designed for precise air intake control in gas fuel systems. Engineered with durable aluminum housing and a natural finish, this throttle body is compatible with select Chevrolet, GMC, Isuzu, and Saturn models, including the Canyon, Cobalt, Colorado, i-280, i-290, and Ion.

• Electronic throttle body with integrated throttle position sensor
• Constructed from aluminum for durability and heat resistance
• Flanged inlet and outlet with 2.6-inch and 2.57-inch diameters respectively
• Single inlet and outlet design optimized for gas fuel injection systems
• Blade-type female electrical connector with 8 terminals for reliable connection
• Natural finish suitable for OEM replacement

Detailed Product Description

The Dorman 977-792 throttle body features a 2.6-inch bore diameter and flanged inlet and outlet ports, ensuring a secure fit within the fuel injection system. This electronic throttle body includes a built-in throttle position sensor to provide accurate feedback to the engine control unit, enhancing throttle response and fuel efficiency. Designed specifically for gas fuel systems, it does not include fuel injectors, mounting hardware, gaskets, or idle air control motor, so these components must be sourced separately if needed. The aluminum housing offers strength and corrosion resistance, making it suitable for long-term use in vehicles such as the Chevrolet Colorado and GMC Canyon.

Compatible Vehicles and Applications

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

• Chevrolet Canyon and Cobalt
• GMC Canyon and Colorado
• Isuzu i-280 and i-290
• Saturn Ion

It is designed to replace the original electronic throttle body in these vehicles, restoring proper throttle control and engine performance.

Common Issues Addressed by This Throttle Body

• Erratic or unresponsive throttle response
• Check engine light related to throttle position sensor faults
• Reduced engine power or stalling at idle
• Poor fuel efficiency due to improper air intake regulation
• Throttle body mechanical wear or corrosion

Installation Notes and Tips

Installation requires removal of the existing throttle body and careful handling of the electrical connector. Since mounting hardware and gaskets are not included, ensure you have the correct parts before beginning installation. Verify the throttle position sensor connector matches the blade-type female terminal with 8 pins. Proper torque specifications should be followed to avoid air leaks or damage to the throttle body flange.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 977-792 throttle body undergoes rigorous quality control to ensure reliable operation. Warranty coverage details should be confirmed with the distributor or manufacturer, as it may vary by region.