Dorman 977-804 Fuel Injection Throttle Body

Overview of Dorman Fuel Injection Throttle Body 977-804

The Dorman 977-804 Fuel Injection Throttle Body is designed for precise electronic throttle control in select Chevrolet and Pontiac vehicles. Engineered with durable aluminum and featuring an integrated throttle position sensor, this throttle body supports efficient fuel delivery and engine performance.

• Compatible with Chevrolet Camaro, Caprice, Corvette, Pontiac G8, and SS models
• Electronic throttle body with built-in throttle position sensor
• Constructed from aluminum and PBT housing materials for durability
• 3.88-inch flanged inlet diameter and 3.54-inch non-flanged outlet diameter
• Includes one throttle body unit; mounting hardware and gaskets not included
• Designed for gas fuel injection systems with a 6-terminal blade electrical connector

Technical Specifications and Features

This Dorman throttle body features a natural finish aluminum body with a 3.54-inch bore diameter, optimized for gas fuel injection systems. The inlet is flanged with a diameter of 3.88 inches, while the outlet is non-flanged with a 3.54-inch diameter. It includes a throttle position sensor to provide accurate throttle feedback to the engine control unit. The electrical connection uses a male blade terminal with six terminals, ensuring reliable communication with the vehicle’s electronic systems. Note that this unit does not include mounting hardware, gaskets, fuel injectors, or idle air control motor components.

Compatible Vehicles and Applications

The Dorman 977-804 throttle body is compatible with a range of Chevrolet and Pontiac vehicles, including the Camaro, Caprice, Corvette, Pontiac G8, and SS models. It is specifically designed for gas fuel injection systems requiring an electronic throttle body with integrated throttle position sensing. This part is ideal for replacing worn or malfunctioning throttle bodies in these vehicles to restore proper throttle response and fuel delivery.

Common Issues Addressed by This Throttle Body

• Erratic or unresponsive throttle control in Chevrolet Camaro and Pontiac G8
• Check engine light triggered by faulty throttle position sensor
• Reduced engine performance due to throttle body wear or damage
• Idle instability or stalling in Chevrolet Caprice and Corvette models
• Throttle hesitation or poor acceleration in SS vehicles

Installation Notes and Tips

Installation of the Dorman 977-804 throttle body requires removal of the existing throttle body unit. Since mounting hardware and gaskets are not included, it is recommended to source these components separately to ensure a proper seal and secure fitment. Care should be taken to properly connect the six-terminal male blade electrical connector to maintain throttle position sensor functionality. Professional installation or consultation with a qualified technician is advised to ensure correct calibration and avoid engine performance issues.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 977-804 throttle body undergoes rigorous quality control to ensure durability and reliable operation in compatible Chevrolet and Pontiac vehicles. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship. Refer to the product documentation or manufacturer for exact warranty terms.