Delphi FG0390 Fuel Pump Module Assembly

Delphi Fuel Pump Module Assembly Overview

The Delphi FG0390 fuel pump module assembly is designed for reliable fuel delivery in Chevrolet and GMC trucks. Engineered to meet the specifications of Silverado 1500, Silverado 1500 Classic, Sierra 1500, and Sierra 1500 Classic models, this in-tank electric fuel pump ensures consistent performance and fuel efficiency.

• 12.0 Volt electric fuel pump with integrated regulator
• Includes fuel level sender assembly with float arm
• Internal strainer and quick connect outlet for efficient fuel flow
• Compatible with flex fuel systems
• Four male blade terminals for secure electrical connections
• Maximum pressure rating of 73 psi and system pressure of 59 psi
• Includes gasket and seal for proper installation
• Average flow rating of 29 gallons per hour and average current draw of 7 amps
• Strainer included on inlet side to protect pump from debris
• Outlet outside diameter of 0.375 inches with three outlet ports
• Vapor pressure sensor integrated for emissions control

Technical Details and Features

The Delphi FG0390 fuel pump module assembly operates at 12 volts and is designed as an in-tank electric pump suitable for flex fuel applications. It features an internal strainer on the inlet side to prevent contaminants from entering the fuel system, enhancing durability. The pump includes a regulator to maintain consistent fuel pressure up to 73 psi, with a system pressure rating of 59 psi, ensuring optimal engine performance. The assembly comes with a fuel level sender assembly, providing accurate fuel gauge readings for Chevrolet Silverado 1500 and GMC Sierra 1500 trucks. The four male blade terminals facilitate secure electrical connections, while the quick connect outlet type simplifies installation. The package includes a gasket and seal to ensure a proper fit and prevent leaks.

Compatible Vehicles and Applications

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

• Chevrolet Silverado 1500
• Chevrolet Silverado 1500 Classic
• GMC Sierra 1500
• GMC Sierra 1500 Classic

It is designed specifically for use in these models, supporting flex fuel systems and maintaining factory specifications for fuel delivery and pressure.

Common Issues Addressed by Delphi FG0390

• Intermittent or no fuel delivery causing engine stalling or failure to start
• Inaccurate fuel level readings due to faulty sender assembly
• Fuel pressure fluctuations affecting engine performance
• Contaminant ingress causing premature pump failure
• Electrical connection problems leading to pump malfunction

Installation Notes and Tips

• Ensure the vehicle’s battery is disconnected before installation to prevent electrical hazards
• Verify compatibility with your Chevrolet Silverado 1500 or GMC Sierra 1500 model year and fuel system type
• Use the included gasket and seal to prevent fuel leaks and maintain system integrity
• Handle the fuel level sender assembly carefully to avoid damage to the float arm
• Check all electrical connections for secure fitment of the four blade terminals

Quality Assurance and Warranty

The Delphi FG0390 fuel pump module assembly is manufactured to meet OEM standards for durability and performance. It includes a vapor pressure sensor to support emissions compliance. This standard replacement grade part is backed by Delphi’s quality control processes, ensuring reliable operation in Chevrolet Silverado 1500 and GMC Sierra 1500 trucks. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.