Delphi FP10259 Fuel Injection Pressure Regulator

Delphi Fuel Injection Pressure Regulator Overview

The Delphi FP10259 fuel injection pressure regulator is designed to maintain consistent fuel pressure in the fuel injection system of select Chevrolet, Oldsmobile, and Pontiac vehicles. Engineered with durable metal construction, this regulator ensures reliable performance for models such as the Chevrolet Cavalier, Malibu, and Pontiac Grand Am.

• Durable metal material for long-lasting use
• System pressure rating of 44 psi for stable fuel delivery
• Push-in inlet port with 0.67 inch (17.0 mm) diameter
• Threaded outlet port with 0.79 inch (20.0 mm) diameter
• Single inlet and outlet ports for straightforward installation
• Bolt mounting type for secure attachment
• Non-adjustable design for consistent factory pressure regulation

Technical Details and Specifications

The FP10259 fuel injection pressure regulator features a metal body constructed to withstand the demands of fuel system operation. It includes one push-in inlet port measuring 0.67 inches (17.0 mm) in diameter and one threaded outlet port measuring 0.79 inches (20.0 mm). The regulator is designed for a system pressure of 44 psi, ensuring precise fuel pressure control. Its bolt mounting type allows for secure and stable installation within the fuel injection system. This part is non-adjustable, providing consistent pressure regulation as specified by the vehicle manufacturer.

Compatible Vehicles and Applications

This Delphi fuel injection pressure regulator is compatible with various Chevrolet, Oldsmobile, and Pontiac models, including the Chevrolet Alero, Cavalier, Malibu, as well as the Oldsmobile Alero and Pontiac Grand Am and Sunfire. The FP10259 part number corresponds specifically to these applications, making it a suitable replacement for maintaining proper fuel pressure in these vehicles.

Common Issues Addressed by the FP10259 Regulator

• Fuel pressure fluctuations causing engine performance issues
• Hard starting or stalling due to inconsistent fuel delivery
• Reduced fuel efficiency from improper fuel pressure
• Engine hesitation or misfires related to fuel system pressure
• Fuel leaks or regulator failure from worn or damaged components

Installation Notes and Tips

Installation of the Delphi FP10259 fuel injection pressure regulator requires basic mechanical skills and proper tools. Ensure the engine is cool and the fuel system is depressurized before removal. The bolt mounting type allows for straightforward attachment, but verify that inlet and outlet ports align correctly with the fuel lines. Since the regulator is non-adjustable, no pressure tuning is necessary after installation. Always inspect fuel lines and connections for leaks following replacement.

Quality Assurance and Warranty

Delphi manufactures the FP10259 fuel injection pressure regulator to meet OEM specifications, ensuring reliable operation and durability. The metal construction supports long service life under normal operating conditions. While specific warranty details may vary, Delphi parts typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or supplier information for exact warranty terms.