2004 Gramd Mercury Marquis

10

Asked by Jul 08, 2016 at 08:43 PM about the 2004 Mercury Grand Marquis LS Premium

Question type: Maintenance & Repair

I was on a short drive to local market and
car was running fine, after stopping for a
light the engine sounded like I was driving
on a flat tire.  Very loud knocking and engine
light started blinking.  Help

3 Answers

70,255

A flashing check engine light means that the engine is misfiring and damaging the catalytic converter. If you have over 90,000 miles on your Grand Marquis you're due for a tune up. I'd start there. HTH. -Jim

1 of 1 people found this helpful.
10

Thank you, Hoping that be the problem, for the engine to go from a purring to loud in a matter of minutes is alarming. I found a friend who has a mechanic cousitowho will have a look this weekend is somewhat a relief. Still a little unsettling since money is tight at the moment. Thank you again.

1 of 1 people found this helpful.
70,255

You're welcome. Glad to help. -Jim

Your Answer

Grand Marquis

Looking for a Used Grand Marquis in your area?

CarGurus has 1,745 nationwide Grand Marquis listings starting at $1,950.

ZIP:

Mercury Grand Marquis Experts

  • #1
    Tracy Hooks
    Reputation
    5,730
  • #2
    kbro
    Reputation
    2,130
  • #3
    Js08016
    Reputation
    1,870
View All

Related Models For Sale

Used Ford Crown Victoria
5 Great Deals out of 1,188 listings starting at $2,900
Used Lincoln Town Car
28 Great Deals out of 1,766 listings starting at $1,500
Used Chevrolet Impala
507 Great Deals out of 33,699 listings starting at $950
Used Ford F-150
2,277 Great Deals out of 181,538 listings starting at $1,000
Used Ford Mustang
684 Great Deals out of 38,301 listings starting at $895
Used Chrysler 300
327 Great Deals out of 17,704 listings starting at $1,000
Used Honda Accord
1,064 Great Deals out of 60,933 listings starting at $999
Used Chevrolet Tahoe
662 Great Deals out of 39,378 listings starting at $1,000
Used Ford Taurus
255 Great Deals out of 16,483 listings starting at $1,850
Used Cadillac DeVille
4 Great Deals out of 1,637 listings starting at $1,995

Used Cars For Sale

2007 Mercury Grand Marquis LS Premium For Sale
5 Great Deals out of 85 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.