How to Safely Service the Fuel Pressure Regulator on a Mercury Grand Marquis?

The presence of highly flammable mixtures in fuel-related components requires service personnel to stay away from smoking and all lighted tobacco products and open flames for safety reasons. The fuel pressure maintains its elevated state after engine shut-off thus operators need to release fuel pressure before disconnecting any lines or components to guarantee personal safety. You should start by clearing fuel pressure and afterward remove the upper intake manifold. First disconnect the vacuum hose from the fuel pressure regulator before removing its snap ring and extracting the fuel pressure regulator from the system. Remove and discard the O-rings as well as the seal components that belong to the fuel pressure regulator. The installation process requires the reverse order of uninstallation steps alongside proper use of new fuel-resistant O-rings that should replace ordinary O-rings which can lead to leaks. Urban citizens should apply engine oil to fuel injector pockets before inserting them because this process aids the installation procedure.

OEM Mercury Grand Marquis Fuel Pressure Regulator

Fuel Tank Pressure Regulator

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4 Fuel Pressure Regulators found

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Mercury Grand Marquis Fuel Pressure Regulator Part Number: 3R3Z-9F972-AB
$102.32 MSRP: $168.36
You Save: $66.04 (40%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Sensor - Fuel Injector Pressure; Fuel Tank Pressure Sensor; Fuel Pressure Sensor; Pressure Sensor
- Replaces: 3R3Z-9F972-AA, F8CZ-9F972-BE, XW4Z-9F972-BA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2003-2004 Mercury Grand Marquis | GS, LS, LSE | 8 Cyl 4.6 L GAS
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Mercury Grand Marquis Fuel Pressure Regulator Part Number: F4SZ-9C968-A
$58.57 MSRP: $96.36
You Save: $37.79 (40%)
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Product Specifications
- Other Name: Regulator - Fuel Pressure; Fuel Injection Pressure Regulator; Fuel Pres Regulator; Pressure Regulator
- Replaced by: PU7Z-9C968-C
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1994-1997 Mercury Grand Marquis | GS, LS | 8 Cyl 4.6 L GAS
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Mercury Grand Marquis Fuel Pressure Regulator Part Number: F8ZZ-9C968-AA
$37.42 MSRP: $58.40
You Save: $20.98 (36%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Regulator - Fuel Pressure; Fuel Injection Pressure Regulator; Pressure Regulator
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2000-2002 Mercury Grand Marquis | GS, LS | 8 Cyl 4.6 L GAS
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Mercury Grand Marquis Fuel Pressure Regulator Part Number: F4CZ-9C968-A
Product Specifications
- Other Name: Regulator - Fuel Pressure; Fuel Injection Pressure Regulator; Fuel Pres Regulator; Pressure Regulator
- Replaces: E7FZ-9C968-A, F3LY-9C968-E, E8DZ-9C968-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1986-1993 Mercury Grand Marquis | Base, Colony Park, GS, LS | 8 Cyl 4.6 L GAS, 8 Cyl 5.0 L GAS

Mercury Grand Marquis Fuel Pressure Regulator

OEM Fuel Pressure Regulator boasts unmatched quality. Each part goes through full quality checks. They adhere to Mercury's official factory standards. These steps remove flaws and inconsistencies. So you can get Fuel Pressure Regulator with long life and a perfect fit. Come to our website and find genuine Mercury Grand Marquis parts. We keep a wide inventory of OEM Grand Marquis parts at the highly affordable prices. It's easy to search, compare, and pick what you need. You'll love the clear info and simple checkout. We offer top-rated customer service, and we reply fast. We also ship promptly to ensure your order arrives on time.

The Fuel Pressure Regulator is used in Mercury Grand Marquis car to govern and regulate fuel pressure within the electronic fuel injection system. It is usually installed on the fuel rail, and its work is based on the use of a spring and diaphragm system. Basically it ties into the engine vacuum and the fuel return line; the fuel flow gets augmented according to the engine needs; that is, lots of fuel gets returned to the tank at idle while not much fuel gets returned during acceleration. Several models of the Fuel Pressure Regulators have been used in the Grand Marquis over the years; these include the non adjustable OEM Fuel Pressure Regulators and the adjustable types which are usually acquired from markets. The first difference is the capacity of adjustable regulators to allow for changes like the use of bigger injectors or fuel pumps of high volumes, which the OEM regulators cannot handle. These regulators can be specific for different fuel system options, so customers will receive the optimal performance in their vehicles.

Mercury Grand Marquis Fuel Pressure Regulator Parts and Q&A

Fuel Pressure Regulator
F8ZZ-9C968-AA
Q: How to Safely Service the Fuel Pressure Regulator on a Mercury Grand Marquis?
A:
The presence of highly flammable mixtures in fuel-related components requires service personnel to stay away from smoking and all lighted tobacco products and open flames for safety reasons. The fuel pressure maintains its elevated state after engine shut-off thus operators need to release fuel pressure before disconnecting any lines or components to guarantee personal safety. You should start by clearing fuel pressure and afterward remove the upper intake manifold. First disconnect the vacuum hose from the fuel pressure regulator before removing its snap ring and extracting the fuel pressure regulator from the system. Remove and discard the O-rings as well as the seal components that belong to the fuel pressure regulator. The installation process requires the reverse order of uninstallation steps alongside proper use of new fuel-resistant O-rings that should replace ordinary O-rings which can lead to leaks. Urban citizens should apply engine oil to fuel injector pockets before inserting them because this process aids the installation procedure.