Fuel

5

Asked by Oct 02, 2016 at 12:02 PM about the 2001 Mercury Grand Marquis GS

Question type: Maintenance & Repair

*Help*: my 2001 mgm has a
starting issue. It left me stranded...
put in a new fuel pump, new fuel
filter but wouldn't start. Had it
towed to ford dealership where
they replaced the computer. They
said it went bad and went into
security mode? Now it is taking a
while for the fuel system to build
pressure? I have to wait until I hear
the fuel pump turn off before the
engine will start. Takes anywhere
from 20 seconds to 1 minute?
Please help, Thanks!

1 Answer

58,905

Sounds like the check valve in the fuel system is bad and is allowing the gasoline to drain back into the tank when you shut off the engine. Some vehicles have the check valve incorporated into the fuel pump module while others have a separate, inline, check valve. HTH. -Jim

Your Answer

Add photo

Related Questions

  • Fuel pump 2 answers

    How do I check for power going to the fuel pump on my 2000 Mercury Grand Marquis? Also will a weak battery cause the fuel pump not to come on?

    2000 Mercury Grand Marquis GS

    -

    Maintenance & Repair

  • Fuel system 2 answers

    I have a 89 mercury grand marquis with a 5L V8. I replaced the fuel pump but I'm still not getting any gas to the engine. Any ideas on how to fix this issue?

    1989 Mercury Grand Marquis

    -

    Maintenance & Repair

  • fuel filter location 1 answer

    The fuel filter in my 05 is in the gas line, under the car about where the front and rear doors come together. You will need a special tool available at most auto parts stores to release the clamps o...

    2005 Mercury Grand Marquis

    -

    Maintenance & Repair

  • about fuel pump 1 answer

    When you have the fuel pump out and you hook direct voltage to it will it make any kind of noise indicating that it works

    1995 Mercury Grand Marquis 4 Dr LS Sedan

    -

    Maintenance & Repair

  • Fuel/starting 2 answers

    Help! I have a 1989 mercury sable 3.0L The car stalled while driving and since hasnt started. I checked the fuel pressure and there was none. I also couldnt hear the pump prime. There is a spark. S...

    1989 Mercury Sable

    -

    Maintenance & Repair

Search Mercury Grand Marquis Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Mercury Grand Marquis Experts

#1 Tracy Hooks
Tracy Hooks
Reputation 5,030
#2 kbro
kbro
Reputation 2,020
#3 Js08016
Js08016
Reputation 1,580
View All

Related Models For Sale

Used Ford Crown Victoria
4 Great Deals out of 1,394 listings starting at $1,700
Used Lincoln Town Car
37 Great Deals out of 2,144 listings starting at $1,995
Used Chevrolet Impala
892 Great Deals out of 35,184 listings starting at $1,700
Used Ford F-150
3,036 Great Deals out of 207,199 listings starting at $1,990
Used Cadillac DeVille
5 Great Deals out of 1,954 listings starting at $1,600
Used Chevrolet Tahoe
862 Great Deals out of 27,925 listings starting at $1,700
Used Honda Accord
995 Great Deals out of 74,838 listings starting at $899
Used Buick LeSabre
13 Great Deals out of 2,248 listings starting at $1,299
Used Ford Taurus
306 Great Deals out of 21,172 listings starting at $1,500
Used Toyota Camry
1,190 Great Deals out of 95,062 listings starting at $1,250
Used Chevrolet Camaro
437 Great Deals out of 40,498 listings starting at $3,500

Used Cars For Sale

2008 Mercury Grand Marquis GS For Sale
52 listings starting at $3,450
2007 Mercury Grand Marquis GS For Sale
53 listings starting at $2,995