On my 2010 Mercury Grand Marques on a/c the air rotates from vent to defrost to floor. Does anyone know what went bad?

10

Asked by Sep 13, 2015 at 09:12 AM about the 2010 Mercury Grand Marquis LS

Question type: Maintenance & Repair

3 Answers

71,005

Sounds like the inline vacuum check valve. If this happens when you accelerate, it's definitely the check valve. HTH. -Jim

1 of 1 people found this helpful.
10

I need to have it checked out, thanks for the help

1 of 1 people found this helpful.
71,005

You're welcome. Glad to help. -Jim

Your Answer

Grand Marquis

Looking for a Used Grand Marquis in your area?

CarGurus has 1,735 nationwide Grand Marquis listings starting at $1,000.

ZIP:

Mercury Grand Marquis Experts

  • #1
    Tracy Hooks
    Reputation
    5,780
  • #2
    kbro
    Reputation
    2,150
  • #3
    Js08016
    Reputation
    1,880
View All

Related Models For Sale

Used Lincoln Town Car
50 Great Deals out of 1,765 listings starting at $1,000
Used Ford Crown Victoria
4 Great Deals out of 1,191 listings starting at $1,496
Used Chevrolet Impala
538 Great Deals out of 35,320 listings starting at $900
Used Dodge Charger
424 Great Deals out of 28,515 listings starting at $2,490
Used Ford F-150
2,609 Great Deals out of 198,102 listings starting at $1,300
Used Ford Mustang
597 Great Deals out of 36,395 listings starting at $1,200
Used Chevrolet Tahoe
745 Great Deals out of 41,784 listings starting at $1,995
Used Chrysler 300
322 Great Deals out of 18,080 listings starting at $990
Used Cadillac DTS
58 Great Deals out of 1,605 listings starting at $2,499
Used Chevrolet Caprice
201 listings starting at $9,995
Used Ford Taurus
192 Great Deals out of 15,921 listings starting at $1,850

Used Cars For Sale

2010 Mercury Grand Marquis LS For Sale
4 Great Deals out of 93 listings starting at $4,795
2009 Mercury Grand Marquis LS For Sale
7 Great Deals out of 81 listings starting at $2,599
2008 Mercury Grand Marquis LS For Sale
4 Great Deals out of 100 listings starting at $2,790

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.