Delphi FG1055 Fuel Pump Module Assembly

Delphi FG1055 Fuel Pump Module Assembly Overview

The Delphi FG1055 fuel pump module assembly is designed for reliable fuel delivery in select GM vehicles. Engineered to meet OEM specifications, this in-tank electric fuel pump module supports consistent fuel pressure and flow for Cadillac, Chevrolet, and GMC models.

• Compatible with Cadillac Escalade ESV, Escalade EXT, Chevrolet Avalanche, Suburban 1500, and GMC Yukon XL 1500
• 12-volt electric pump with integrated fuel level sender assembly
• Includes regulator, internal strainer, and gasket for secure installation
• Maximum pressure rating of 78 psi and system pressure of 73 psi
• Quick connect outlet with 0.375 inch outside diameter and dual outlet ports
• Blade-type male terminals with four connections for reliable electrical contact
• Designed for flex fuel compatibility
• Standard replacement grade with included seal and instruction sheet

Technical Details and Features

The Delphi FG1055 fuel pump module assembly operates at 12 volts and features an electric pump type with an average current draw of 11 amps. It includes an internal strainer at the inlet to prevent debris from entering the fuel system and a vapor pressure sensor to support emissions control. The fuel level sender assembly is integrated, providing accurate fuel level readings. The module has two quick connect outlet ports with a 0.375 inch outside diameter, facilitating straightforward fuel line connections. The regulator is included to maintain consistent fuel pressure, rated up to 78 psi, ensuring optimal engine performance. The four blade-type male terminals provide secure electrical connections, supporting the pump’s operation within the fuel system.

Compatible Vehicles and Applications

This fuel pump module assembly is compatible with the following vehicles:

• Cadillac Escalade ESV and Escalade EXT
• Chevrolet Avalanche and Suburban 1500
• GMC Yukon XL 1500

It is designed specifically for in-tank installation and supports flex fuel applications, making it suitable for vehicles requiring flexible fuel delivery solutions.

Common Issues Addressed by the Delphi FG1055

• Fuel delivery interruptions causing engine stalling or hesitation
• Inaccurate fuel level readings due to faulty sender assemblies
• Low fuel pressure affecting engine performance and efficiency
• Contaminated fuel flow caused by clogged strainers
• Electrical connection failures leading to pump malfunction

Installation Notes and Tips

When installing the Delphi FG1055 fuel pump module assembly, ensure the gasket or seal included is properly seated to prevent fuel leaks. Verify that the blade-type male terminals are securely connected to avoid electrical issues. The quick connect outlet ports simplify fuel line attachment but confirm compatibility with existing fuel lines. Follow the included instruction sheet carefully for proper installation procedures. This module is designed for in-tank installation, so take appropriate safety precautions when working with fuel systems.

Quality Assurance and Warranty

Delphi fuel pump modules are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The FG1055 is a standard replacement grade part that includes a fuel level sender assembly, regulator, and internal strainer to ensure comprehensive fuel system functionality. While specific warranty details may vary, Delphi products typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or the supplier for exact warranty terms.