Question about 2007 Mercury Grand Marquis GS Sedan

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How to relieve fuel system pressure before changing fuel filter on 2007 mercury grand marquis

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The best way is to let the car sit for an hour. Some fuel will leak, that is normal. Either way fuel will come out, just not as bad.

Posted on Sep 05, 2009

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Posted on Jan 02, 2017

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Install 1995 mercury grand marquis fuel pum


REMOVAL & INSTALLATION


CAUTION
Fuel injection systems remain under pressure, even after the engine has been turned OFF. The fuel system pressure must be relieved before disconnecting any fuel lines. Failure to do so may result in fire and/or personal injury.
  1. If equipped with air suspension, the air suspension switch, located on the right-hand side of the luggage compartment, must be turned to the OFF position before raising the vehicle.
  2. Disconnect the negative battery cable.
  3. Relieve fuel system pressure using the recommended procedure.
  4. Raise and safely support the vehicle.
  5. Remove the fuel tank from the vehicle and place on a suitable work bench.
  6. Remove any dirt that has accumulated around the fuel pump retaining flange so it will not enter the tank during pump removal and installation.
  7. On 1989-94 models, turn the fuel pump locking ring counterclockwise and remove the locking ring.
  8. On 1995-98 models, remove 6 retaining bolts around the perimeter of the fuel pump module.
  9. Remove the fuel pump/sending unit assembly. Remove and discard the seal ring.
To install:
  1. Clean the fuel pump mounting flange, fuel tank mounting surface and seal ring groove.
  2. Apply a light coating of grease on a new seal ring to hold it in place during assembly and install in the seal ring groove.
  3. Install the fuel pump/sending unit assembly carefully to ensure the filter is not damaged. Make sure the locating keys are in the keyways and the seal ring remains in the groove.
  4. Hold the pump assembly in place and install the locking ring finger-tight. Make sure all the locking tabs are under the tank lock ring tabs.
  5. Rotate the locking ring clockwise until the ring is against the stops.
  6. Install the fuel tank into the vehicle.
  7. Lower the vehicle.
  8. If equipped with air suspension, turn the air suspension switch to the ON position.
  9. Add a minimum of 10 gallons of fuel to the tank and check for leaks.
  10. Reconnect the negative battery cable.
  11. Turn the ignition switch to the RUN position several times to pressurize the fuel system. Check for fuel leaks and correct as necessary.
  12. Start the engine and check for leaks.
  13. Road test the vehicle and check for proper operation.

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Nov 22, 2015 | 1995 Mercury Grand Marquis

2 Answers

Misfire on mercury grand marquis p305


I answered this already

If a MIL Lamp is flashing please do not use the car

That on a ford that is called a Class A Cylinder misfire & will
destroy your exhaust converter, as well as possible other
engine damage,work on the misfire issues

Jan 24, 2013 | 2001 Mercury Grand Marquis

1 Answer

Stalling 2002 mercury grand marquis


Most parts retailers can tell you what the pressure should be from the pump or what pressure the pump is rated to put out. If pressure is low from the fuel pump- replace it.

Jan 12, 2013 | 2002 Mercury Grand Marquis

1 Answer

2002 mercury grand marquis 4.6l turns over but wont crank up


How about the injector? In the engine junction fuse box the fuse for the injector power is in there make sure its not open

Mar 06, 2012 | 2002 Mercury Grand Marquis

1 Answer

Where is the fuel filter on my 1985 mercury grand marquis>


Hi!!
Check under the vehicle by the driver's side door, towards the front, clamped on the chassis.
MAKE SURE TO RELIEVE FUEL SYSTEM PRESSURE BEFORE REPLACING THE FILTER.
Don't forget to rate this post!!

Sep 28, 2010 | 1985 Mercury Grand Marquis

1 Answer

Where is the fuel filter located on my 1993 mercury grand marquis


1993 Mercury Grand Marquis 4.6L SFI 8cyl
The Fuel Filter is located: Under vehicle, driver side, below seating area, front of rear wheelwell, mounted on chassis in fuel line .

Hope helps (remember rated this).

Jun 15, 2010 | 1993 Mercury Grand Marquis

1 Answer

My 1996 mercury grand marquis starts and runs good, good power, has 200,000 miles on it. When I fill it up and drive it, it dies and starts right back up. I think it is the fuel pump. I have not checked...


You might have a bad gas cap. I would also change the fuel filter, I did a fuel filter on the same type of vehicle and the gas coming out of it looked like black ink, it was so dirty.

Jun 02, 2010 | 1996 Mercury Grand Marquis

1 Answer

Are there special tools required to change a fuel filter on a 2007 mercury gran marquis? it appears there may be.


yes its called a fuel line dissconnect tool you can get them at any parts store for around ten bucks

Jun 09, 2009 | 2007 Mercury Grand Marquis GS Sedan

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