Dorman 977-791 Fuel Injection Throttle Body

Overview of Dorman Fuel Injection Throttle Body 977-791

The Dorman 977-791 Fuel Injection Throttle Body is designed for precise airflow control in Hyundai vehicles, including the Santa Fe, Sonata, and Tucson models. This electronic throttle body ensures consistent fuel delivery and engine performance for gas fuel systems.

• Compatible with Hyundai Santa Fe, Sonata, and Tucson
• Electronic throttle body type for accurate throttle response
• Constructed from durable aluminum with a silver finish
• Inlet diameter of 2.83 inches with flanged inlet type
• Single outlet with a 2.36-inch diameter, non-flanged
• Airflow rate of 92.8 CFM for efficient engine breathing
• Designed for gas fuel injection systems
• No mounting hardware, gaskets, or seals included

Detailed Product Description

The Dorman 977-791 throttle body is engineered to regulate the amount of air entering the engine, a critical function for maintaining optimal combustion in Hyundai gas engines. Made from aluminum, this throttle body features a silver finish that resists corrosion and wear. Its electronic design allows for precise control of throttle position, improving engine responsiveness and fuel efficiency. The inlet is flanged with a diameter of 2.83 inches, while the outlet is non-flanged with a 2.36-inch diameter bore, matching OEM specifications for a direct replacement. The airflow rate of 92.8 cubic feet per minute supports proper engine breathing, which is essential for maintaining performance and emissions standards.

Common Applications and Problem Resolution

• Restores proper throttle response in Hyundai Santa Fe, Sonata, and Tucson models
• Resolves rough idling or stalling caused by faulty throttle bodies
• Eliminates hesitation or poor acceleration due to air intake issues
• Addresses check engine light codes related to throttle position sensor faults
• Improves fuel efficiency by ensuring accurate air-fuel mixture control

Installation Notes and Tips

Installation of the Dorman 977-791 throttle body requires removal of the old throttle body and careful alignment of the inlet and outlet ports. Since mounting hardware and gaskets are not included, ensure you have the necessary components before beginning installation. It is recommended to clean the throttle body mounting surface and inspect related sensors for proper operation. Calibration or relearning procedures may be necessary after installation to ensure the electronic throttle body communicates correctly with the vehicle’s engine control unit.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. While specific warranty details for part number 977-791 should be confirmed at the point of purchase, Dorman typically offers limited warranties covering defects in material and workmanship. This throttle body is designed to provide consistent operation for Hyundai Santa Fe, Sonata, and Tucson vehicles equipped with gas fuel injection systems.