How to check the Fuel Pump and fuel pressure on Mercury Grand Marquis?

First of all, to perform a fuel pressure test, you will need a gauge and adaptor set. The fuel pump operates when the engine is cranking or running and shuts off without ignition pulses. After relieving pressure, cover fuel connections with a towel. To inspect the fuel system, listen for a whirring sound at the fuel filler opening when turning the ignition on, if absent, check the fuse, relay, and circuitry. For older models, attach a gauge to the test port and check pressure with and without the engine running. For newer models use a tee-in gauge to measure pressure between hose and rail. After each test, depressurize the system and reconnect components.

How to replace the fuel pump in a Mercury Grand Marquis?

For models made in 1995 or earlier, siphon the remaining fuel from the tank, release pressure from the pump, disconnect the battery, lift the vehicle securely, unplug all fuel lines and electrical connectors, rotate the lock ring anti-clockwise, take out pump assembly then clean strainer before reinstalling it with a new seal ring. However, on 1996 and later models you will need to remove the fuel tank and mounting bolts to lift out the pump assembly, which no longer requires using the old seal but one should consider checking the strainer's cleanliness as well as replacing or cleaning the pump itself, before putting back the flange mountings and tank surfaces can be cleaned together with ensuring that there is fresh grease for this new installation.

Genuine Mercury Grand Marquis Fuel Pump

Gas Pump

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).

22 Fuel Pumps found

View related parts
Mercury Grand Marquis Sender And Pump Assembly
Part Number: 6W1Z-9H307-C
$204.19 MSRP: $409.09
You Save: $204.90 (51%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sender And Pump Assy
- Replaced by: AW1Z-9H307-C
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2008-2010 Mercury Grand Marquis | 8 Cyl 4.6L Romeo SOHC EFI | 4-Speed Automatic Transmission 4R75E Livonia, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
View related parts
Mercury Grand Marquis Sender And Pump Assembly
Part Number: BW1Z-9H307-A
$376.29 MSRP: $605.45
You Save: $229.16 (38%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sender And Pump Assy; Fuel Pump
- Replaced by: BW1Z-9H307-B
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2011 Mercury Grand Marquis | 8 Cyl 4.6L Romeo SOHC EFI | 4-Speed Automatic Transmission 4R75E Livonia, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
View related parts
Mercury Grand Marquis Sender And Pump Assembly
Part Number: 6W1Z-9H307-D
$297.19 MSRP: $478.18
You Save: $180.99 (38%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sender And Pump Assy; Fuel Pump, Fuel Pump Assembly
- Replaced by: 6W1Z-9H307-G
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2009-2010 Mercury Grand Marquis | 8 Cyl 4.6L Romeo SOHC EFI | 4-Speed Automatic Transmission 4R75E Livonia, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
View related parts
Mercury Grand Marquis Sender And Pump Assembly
Part Number: AW1Z-9H307-B
$204.19 MSRP: $409.09
You Save: $204.90 (51%)
ADD TO CART
Product Specifications
- Other Name: Sender And Pump Assy; Fuel Pump
- Replaced by: AW1Z-9H307-C
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2010-2011 Mercury Grand Marquis | 8 Cyl 4.6L Romeo SOHC EFI | 4-Speed Automatic Transmission 4R75E Livonia, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
View related parts
Mercury Grand Marquis Sender And Pump Assembly
Part Number: 6W1Z-9H307-A
$204.19 MSRP: $409.09
You Save: $204.90 (51%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sender And Pump Assy
- Manufacturer Note: Flex Fuel Ethanol Tanks have a cover over metal tank, green stripe on fuel pump., Flex Fuel Ethanol
- Replaced by: AW1Z-9H307-C
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2006-2008 Mercury Grand Marquis | 8 Cyl 4.6L, 8 Cyl 4.6L Romeo SOHC EFI | 4AT 4R70W, 4-Speed Automatic Transmission 4R75E Livonia, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
View related parts
Mercury Grand Marquis Sender And Pump Assembly
Part Number: 5W1Z-9H307-AC
$297.19 MSRP: $478.18
You Save: $180.99 (38%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sender And Pump Assy
- Manufacturer Note: Pump & sender assy., FROM 2/15/2005
- Replaced by: 6W1Z-9H307-G
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2006 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
View related parts
Mercury Grand Marquis Sender And Pump Assembly
Part Number: AW1Z-9H307-A
$376.29 MSRP: $605.45
You Save: $229.16 (38%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sender And Pump Assy
- Replaced by: BW1Z-9H307-B
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2010-2011 Mercury Grand Marquis | 8 Cyl 4.6L Romeo SOHC EFI | 4-Speed Automatic Transmission 4R75E Livonia, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
View related parts
Mercury Grand Marquis Fuel Pump And Sender Assembly
Part Number: 6W1Z-9H307-B
$297.19 MSRP: $478.18
You Save: $180.99 (38%)
Product Specifications
- Other Name: Sender And Pump Assy
- Manufacturer Note: Non Flex Fuel applications have no covering on the metal tank and no green stripe on fuel pump., Non Flex Fuel
- Replaced by: 6W1Z-9H307-G
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2006-2008 Mercury Grand Marquis | 8 Cyl 4.6L, 8 Cyl 4.6L Romeo SOHC EFI | 4AT 4R70W, 4-Speed Automatic Transmission 4R75E Livonia, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
View related parts
Mercury Grand Marquis Sender And Pump Assembly
Part Number: 4W1Z-9H307-AA
Product Specifications
- Other Name: Sender And Pump Assy; Fuel Pump
- Replaced by: 4W1Z-9H307-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2004 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
View related parts
Mercury Grand Marquis Pump Assembly Fuel
Part Number: E3AZ9350B
Product Specifications
- Other Name: Pump Assy - Fuel
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1983-1986 Mercury Grand Marquis | 8 Cyl 5.0L, 8 Cyl 5.8L | 4AT AOD
View related parts
Mercury Grand Marquis Fuel Tank Sender Assembly
Part Number: EOLY-9275-B
Product Specifications
- Other Name: Sender Assembly - Fuel Tank; Fuel Gauge Sending Unit
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1983-1989 Mercury Grand Marquis | 8 Cyl 5.0L | 4AT AOD
View related parts
Mercury Grand Marquis Fuel Pump Assembly
Part Number: EOVZ-9350-A
Product Specifications
- Other Name: Pump Assembly - Fuel
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1980-1986 Mercury Grand Marquis | 8 Cyl 4.2L, 8 Cyl 5.0L, 8 Cyl 5.8L | 3AT, 3AT C4, 3AT C6, 4AT AOD
View related parts
Mercury Grand Marquis Fuel Pump Assembly
Part Number: F1PY-9A407-A
Product Specifications
- Other Name: Pump Assembly - Fuel
- Manufacturer Note: Pump asy., without sender
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1992 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT, 4AT AOD, 4AT AODE
View related parts
Mercury Grand Marquis Fuel Tank Sender Assembly
Part Number: F2AZ-9275-B
Product Specifications
- Other Name: Sender Assembly - Fuel Tank ; Fuel Gauge Sending Unit; Fuel Gauge Sending Unit, Sending Unit
- Manufacturer Note: MECHANICAL INSTR. CLUSTER
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1992 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT, 4AT AOD, 4AT AODE
View related parts
Mercury Grand Marquis Fuel Pump Assembly
Part Number: F2VY-9A407-A
Product Specifications
- Other Name: Pump Assembly - Fuel
- Manufacturer Note: Pump asy., without sender
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1993-1994 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT, 4AT AODE
View related parts
Mercury Grand Marquis Fuel Pump Assembly
Part Number: F2VZ-9A407-EA
Product Specifications
- Other Name: Pump Assembly - Fuel
- Manufacturer Note: Pump asy., without sender
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1990-1991 Mercury Grand Marquis | 8 Cyl 5.0L | 4AT AOD
View related parts
Mercury Grand Marquis Fuel Tank Sender Assembly
Part Number: F3AZ-9275-B
Product Specifications
- Other Name: Sender Assembly - Fuel Tank ; Fuel Gauge Sending Unit; Fuel Gauge Sending Unit, Sending Unit
- Manufacturer Note: MECHANICAL INSTR. CLUSTER
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1993-1994 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT, 4AT AODE
View related parts
Mercury Grand Marquis Fuel Tank Sender Assembly
Part Number: F3AZ-9275-E
Product Specifications
- Other Name: Sender Assembly - Fuel Tank; Fuel Gauge Sending Unit, Sending Unit
- Manufacturer Note: MECHANICAL INSTR. CLUSTER
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1992 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT, 4AT AOD, 4AT AODE
View related parts
Mercury Grand Marquis Fuel Tank Sender Assembly
Part Number: F3AZ-9275-G
Product Specifications
- Other Name: Sender Assembly - Fuel Tank
- Manufacturer Note: Electronic instr. cluster, FROM 1/94
- Replaced by: F3VY-9275-B
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1994 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT, 4AT AODE
View related parts
Mercury Grand Marquis Sender And Pump Assembly
Part Number: FOAZ-9H307-C
Product Specifications
- Other Name: Sender And Pump Assy
- Manufacturer Note: Pump & sender asy., Except Wagon
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1990-1991 Mercury Grand Marquis | 8 Cyl 5.0L | 4AT AOD

| Page 1 of 2 |Next >

1-20 of 22 Results

Mercury Grand Marquis Fuel Pump Parts Questions & Experts Answers

Sender And Pump Assembly
BW1Z-9H307-A
Q: How to check the Fuel Pump and fuel pressure on Mercury Grand Marquis?
A: First of all, to perform a fuel pressure test, you will need a gauge and adaptor set. The fuel pump operates when the engine is cranking or running and shuts off without ignition pulses. After relieving pressure, cover fuel connections with a towel. To inspect the fuel system, listen for a whirring sound at the fuel filler opening when turning the ignition on, if absent, check the fuse, relay, and circuitry. For older models, attach a gauge to the test port and check pressure with and without the engine running. For newer models use a tee-in gauge to measure pressure between hose and rail. After each test, depressurize the system and reconnect components.
Sender And Pump Assembly
6W1Z-9H307-D
Q: How to replace the fuel pump in a Mercury Grand Marquis?
A: For models made in 1995 or earlier, siphon the remaining fuel from the tank, release pressure from the pump, disconnect the battery, lift the vehicle securely, unplug all fuel lines and electrical connectors, rotate the lock ring anti-clockwise, take out pump assembly then clean strainer before reinstalling it with a new seal ring. However, on 1996 and later models you will need to remove the Fuel Tank and mounting bolts to lift out the pump assembly, which no longer requires using the old seal but one should consider checking the strainer's cleanliness as well as replacing or cleaning the pump itself, before putting back the flange mountings and tank surfaces can be cleaned together with ensuring that there is fresh grease for this new installation.