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

78,095

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

1 people found this helpful.
10

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

1 people found this helpful.
78,095

You're welcome. Glad to help. -Jim

Your Answer

Grand Marquis

Looking for a Used Grand Marquis in your area?

CarGurus has 1,207 nationwide Grand Marquis listings starting at $1,200.

ZIP:

Mercury Grand Marquis Experts

  • #1
    Tracy Hooks
    Reputation
    5,990
  • #2
    kbro
    Reputation
    2,210
  • #3
    Js08016
    Reputation
    2,050
View All

Related Models For Sale

Used Lincoln Town Car
21 Great Deals out of 1,347 listings starting at $1,995
Used Ford Crown Victoria
5 Great Deals out of 699 listings starting at $1,700
Used Chevrolet Impala
385 Great Deals out of 25,585 listings starting at $900
Used Cadillac DTS
28 Great Deals out of 1,358 listings starting at $2,997
Used Dodge Charger
249 Great Deals out of 32,800 listings starting at $2,000
Used Ford F-150
2,283 Great Deals out of 215,025 listings starting at $1,300
Used Chrysler 300
307 Great Deals out of 19,343 listings starting at $1,500
Used Chevrolet Tahoe
529 Great Deals out of 36,436 listings starting at $1,299
Used Ford Mustang
255 Great Deals out of 36,634 listings starting at $2,500
Used Ford Taurus
175 Great Deals out of 15,814 listings starting at $981
Used Toyota Camry
787 Great Deals out of 70,563 listings starting at $1,000
Used Chevrolet Silverado 1500
1,738 Great Deals out of 148,970 listings starting at $828

Used Cars For Sale

2010 Mercury Grand Marquis LS For Sale
5 Great Deals out of 75 listings starting at $3,500
2009 Mercury Grand Marquis LS For Sale
52 listings starting at $3,777
2008 Mercury Grand Marquis LS For Sale
3 Great Deals out of 74 listings starting at $2,850

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.