where can I locate the pressure sensor for the fuel system and how can I tell if its bad.

Asked by Oct 19, 2014 at 02:08 PM about the 2004 Mercury Grand Marquis LS Ultimate

Question type: Maintenance & Repair

2 Answers

What engine?

OK 4.6 There is a schrader valve on the fuel rail, can't post picture it's copyrighted and will get deleted anyway. Looks just like a tire valve, get hold of a fuel pressure tester gauge and should have 35 psi minimum. If it's lower, either fuel pump, filter or regulator is bad.

Your Answer

Grand Marquis

Looking for a Used Grand Marquis in your area?

CarGurus has 1,705 nationwide Grand Marquis listings starting at $800.

ZIP:

Mercury Grand Marquis Experts

  • #1
    Tracy Hooks
    Reputation
    5,840
  • #2
    kbro
    Reputation
    2,160
  • #3
    Js08016
    Reputation
    1,930
View All

Related Models For Sale

Used Lincoln Town Car
31 Great Deals out of 1,731 listings starting at $1,099
Used Ford Crown Victoria
3 Great Deals out of 960 listings starting at $1,496
Used Chevrolet Impala
570 Great Deals out of 34,332 listings starting at $900
Used Chevrolet Tahoe
801 Great Deals out of 41,547 listings starting at $1,987
Used Ford Mustang
573 Great Deals out of 38,832 listings starting at $1,895
Used Chrysler 300
327 Great Deals out of 19,363 listings starting at $900
Used Ford F-150
3,124 Great Deals out of 219,053 listings starting at $1,200
Used Honda Accord
1,101 Great Deals out of 71,974 listings starting at $1,100
Used Ford Taurus
231 Great Deals out of 14,928 listings starting at $1,800
Used Toyota Camry
1,033 Great Deals out of 85,948 listings starting at $800

Used Cars For Sale

2011 Mercury Grand Marquis For Sale
27 listings starting at $5,900
2010 Mercury Grand Marquis For Sale
6 Great Deals out of 94 listings starting at $4,688
2009 Mercury Grand Marquis For Sale
85 listings starting at $2,995
2008 Mercury Grand Marquis For Sale
7 Great Deals out of 153 listings starting at $800
2007 Mercury Grand Marquis For Sale
6 Great Deals out of 139 listings starting at $1,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.