How to service and repair the fuel pressure regulator safely on Mercury Cougar?

Safety requires priority before servicing or repairing the fuel pressure regulator because fuel components contain hazardous vapors that can make all areas around the regulator highly flammable. Starting the procedure requires venting fuel system pressure before you disconnect both the fuel return hose spring lock coupling and the vacuum hose at the fuel pressure regulator location. The service technician should take out the fuel pressure regulator together with its attached pipe assembly. When installing the fuel pressure regulator service the removal procedure backwards also apply fresh engine oil such as XO-10W30-QSP or DSP or matching Ford specification WSS-M2C-153-H for proper seal connection. A new pressure regulator O-ring seal must be installed because it ensures a proper fit. Take safety precautions around all fuel components because they pose injury risks.

What precautions should be taken when servicing the fuel pressure regulator on Mercury Grand Marquis?

The presence of highly flammable mixtures requires you to keep smoking and all lighted tobacco items and open flames away from fuel-related components since dangerous personal injuries can occur. High pressure from the fuel system continues after engine shutdown thus requiring a proper reduction in fuel pressure before lines or components can be disconnected to avoid personal harm. The first step is to decrease fuel pressure before taking out the upper intake manifold. Detach the vacuum hose from the fuel pressure regulator while removing its snap ring in order to extract the fuel pressure regulator. The task requires the disposal of all O-rings and the seal which attaches to the fuel pressure regulator. The installation should start by performing the opposite order of removal and use new O-rings from special fuel-resistant materials instead of traditional ones because standard O-rings may enable fuel leakage. Clean engine oil should be applied to the fuel injector pockets before setting them to help with installation.

OEM Mercury Fuel Pressure Regulator

Fuel Tank Pressure Regulator

Select Vehicle by Model
Select Vehicle by VIN

Select Vehicle by Model

Make

Model

Year

Select Vehicle by VIN

For the most accurate results, select vehicle by your VIN (Vehicle Identification Number).

14 Fuel Pressure Regulators found

View related parts
Mercury Fuel Pressure Regulator
Part Number: 3R3Z-9F972-AB
$102.32 MSRP: $168.36
You Save: $66.04 (40%)
Ships in 1 Business Day
ADD TO CART
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
Fits the following Mercury Models:
- Grand Marquis | 2003-2004 | GS, LS, LSE | 8 Cyl 4.6 L GAS
- Marauder | 2003-2004 | Base | 8 Cyl 4.6 L GAS
- Mountaineer | 2004-2005 | Base, Convenience, Luxury, Premier
- Tracer | 1998-1999 | GS, LS, Trio | 4 Cyl 2.0 L GAS
View More
View related parts
Mercury Fuel Pressure Regulator
Part Number: F4SZ-9C968-A
$66.52 MSRP: $109.45
You Save: $42.93 (40%)
ADD TO CART
Product Specifications
- Other Name: Regulator - Fuel Pressure; Fuel Injection Pressure Regulator; Fuel Pres Regulator; Pressure Regulator
- Replaced by: PU7Z-9C968-C
Fits the following Mercury Models:
- Cougar | 1994-1997 | XR-7 | 6 Cyl 3.8 L GAS, 8 Cyl 4.6 L GAS
- Grand Marquis | 1994-1997 | GS, LS | 8 Cyl 4.6 L GAS
- Mystique | 1995-1996 | Base, GS, GS Spree, LS, LS Young America | 6 Cyl 2.5 L GAS
- Sable | 1994-1999 | G, GS, LS, LS Premium, LTS | 6 Cyl 3.0 L GAS, 6 Cyl 3.8 L GAS
View More
View related parts
Mercury Fuel Pressure Regulator
Part Number: XF5Z-9C968-AA
$22.20 MSRP: $30.71
You Save: $8.51 (28%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Regulator - Fuel Pressure
Fits the following Mercury Models:
- Villager | 1999-2002 | Base, Estate, Sport | 6 Cyl 3.3 L GAS
View related parts
Mercury Fuel Pressure Regulator
Part Number: F5RZ-9C968-A
$20.99 MSRP: $29.04
You Save: $8.05 (28%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Regulator - Fuel Pressure; Fuel Injection Pressure Regulator; Pressure Regulator
Fits the following Mercury Models:
- Mystique | 1995-1996 | Base, GS, GS Spree, LS | 4 Cyl 2.0 L GAS
View related parts
Mercury 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
Fits the following Mercury Models:
- Grand Marquis | 2000-2002 | GS, LS | 8 Cyl 4.6 L GAS
View related parts
Mercury Fuel Pressure Regulator
Part Number: F4TZ-9C968-A
Product Specifications
- Other Name: Regulator - Fuel Pressure; Fuel Injection Pressure Regulator; Pressure Regulator
- Manufacturer Note: Regulator assy. (fuel charging pressure) #F4TE 9C968-BA
- Replaces: E7TZ-9C968-E, F1DZ-9C968-A
Fits the following Mercury Models:
- Topaz | 1988-1994 | GS, GS AWD, LS, LS AWD, LTS, LTS AWD, Sport, Sport AWD, XR5, XR5 AWD | 4 Cyl 2.3 L GAS
View related parts
Mercury Fuel Pressure Regulator
Part Number: E7FZ-9C968-A
Product Specifications
- Other Name: Regulator - Fuel Pressure; Fuel Injection Pressure Regulator; Fuel Pres Regulator; Pressure Regulator
- Replaced by: F4CZ-9C968-A
Fits the following Mercury Models:
- Capri | 1984-1986 | GS | 4 Cyl 2.3 L GAS
- Cougar | 1991, 1984-1986 | Base, LS, XR-7 | 4 Cyl 2.3 L GAS, 8 Cyl 5.0 L GAS
- Lynx | 1984-1987 | Base, GL, GS, L, LS, LTS, RS, XR3 | 4 Cyl 1.6 L GAS, 4 Cyl 1.9 L GAS, 4 Cyl 2.0 L DIESEL
- Marquis | 1984-1986 | Base, Brougham | 4 Cyl 2.3 L GAS, 4 Cyl 2.3 L LPG
View More
View related parts
Mercury Fuel Pressure Regulator
Part Number: F7RZ-9C968-AA
Product Specifications
- Other Name: Regulator - Fuel Pressure; Fuel Injection Pressure Regulator; Pressure Regulator
Fits the following Mercury Models:
- Cougar | 1999-2002 | Base | 4 Cyl 2.0 L GAS
- Mystique | 1997-1999 | GS, LS | 4 Cyl 2.0 L GAS
- Tracer | 1998-1999 | GS, LS, Trio | 4 Cyl 2.0 L GAS
View More
View related parts
Mercury 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
Fits the following Mercury Models:
- Colony Park | 1987-1991 | GS, LS | 8 Cyl 5.0 L GAS
- Cougar | 1992-1993 | LS, XR-7 | 6 Cyl 3.8 L GAS, 8 Cyl 5.0 L GAS
- Grand Marquis | 1986-1993 | Base, Colony Park, GS, LS | 8 Cyl 4.6 L GAS, 8 Cyl 5.0 L GAS
- Sable | 1992-1993 | GS, LS | 6 Cyl 3.0 L GAS, 6 Cyl 3.8 L GAS
- Topaz | 1992-1994 | GS, LTS, Sport, XR5 | 6 Cyl 3.0 L GAS
- Tracer | 1991-1996 | Base, Trio | 4 Cyl 1.9 L GAS
View More
View related parts
Mercury Fuel Pressure Regulator
Part Number: E8DZ-9C968-A
Product Specifications
- Other Name: Regulator - Fuel Pressure; Fuel Injection Pressure Regulator; Fuel Pres Regulator; Pressure Regulator
- Replaced by: F4CZ-9C968-A
Fits the following Mercury Models:
- Cougar | 1988-1990 | LS, XR-7 | 6 Cyl 3.8 L GAS
View related parts
Mercury Fuel Pressure Regulator
Part Number: F4TZ-9C968-B
Product Specifications
- Other Name: Regulator - Fuel Pressure; Fuel Injection Pressure Regulator; Fuel Pres Regulator; Pressure Regulator
Fits the following Mercury Models:
- Mountaineer | 1997-1999 | Base | 8 Cyl 5.0 L GAS
- Tracer | 1997-1999 | GS, LS, Trio | 4 Cyl 2.0 L GAS
View related parts
Mercury Fuel Pressure Regulator
Part Number: F3XY-9C968-A
Product Specifications
- Other Name: Regulator - Fuel Pressure
Fits the following Mercury Models:
- Villager | 1993-1998 | GS, LS, Nautica | 6 Cyl 3.0 L GAS
View related parts
Mercury Fuel Pressure Regulator
Part Number: F1CZ9C968A
Product Specifications
- Other Name: Carburetor Part; Fuel Injection Pressure Regulator; Pressure Regulator; Regulator - Fuel Pressure
Fits the following Mercury Models:
- Tracer | 1991-1996 | LTS | 4 Cyl 1.8 L GAS
View related parts
Mercury Fuel Pressure Regulator
Part Number: F73Z-9C968-AA
Product Specifications
- Other Name: Regulator - Fuel Pressure; Fuel Injection Pressure Regulator; Pressure Regulator
Fits the following Mercury Models:
- Cougar | 1999-2002 | Base, S, V6 | 6 Cyl 2.5 L GAS
- Mystique | 1997-1999 | GS, LS | 6 Cyl 2.5 L GAS

Mercury Fuel Pressure Regulator Parts Questions & Experts Answers

Fuel Pressure Regulator
F7RZ-9C968-AA
Q: How to service and repair the fuel pressure regulator safely on Mercury Cougar?
A: Safety requires priority before servicing or repairing the fuel pressure regulator because fuel components contain hazardous vapors that can make all areas around the regulator highly flammable. Starting the procedure requires venting fuel system pressure before you disconnect both the fuel return hose spring lock coupling and the vacuum hose at the fuel pressure regulator location. The service technician should take out the fuel pressure regulator together with its attached pipe assembly. When installing the fuel pressure regulator service the removal procedure backwards also apply fresh engine oil such as XO-10W30-QSP or DSP or matching Ford specification WSS-M2C-153-H for proper seal connection. A new pressure regulator O-ring seal must be installed because it ensures a proper fit. Take safety precautions around all fuel components because they pose injury risks.
Fuel Pressure Regulator
F8ZZ-9C968-AA
Q: What precautions should be taken when servicing the fuel pressure regulator on Mercury Grand Marquis?
A: The presence of highly flammable mixtures requires you to keep smoking and all lighted tobacco items and open flames away from fuel-related components since dangerous personal injuries can occur. High pressure from the fuel system continues after engine shutdown thus requiring a proper reduction in fuel pressure before lines or components can be disconnected to avoid personal harm. The first step is to decrease fuel pressure before taking out the upper intake manifold. Detach the vacuum hose from the fuel pressure regulator while removing its snap ring in order to extract the fuel pressure regulator. The task requires the disposal of all O-rings and the seal which attaches to the fuel pressure regulator. The installation should start by performing the opposite order of removal and use new O-rings from special fuel-resistant materials instead of traditional ones because standard O-rings may enable fuel leakage. Clean engine oil should be applied to the fuel injector pockets before setting them to help with installation.