Wat causes air to flow thru defroster vents instead of dash vents

Asked by Jul 26, 2017 at 10:12 PM about the 2009 Mercury Grand Marquis LS

Question type: Maintenance & Repair

2009 Grand marquis, blows cold air but only thru defroster and floor.

2 Answers

80

Check your vacuum hoses..

10

If your control is digital it may need to be replaced. They have a history of going bad and blowing through the defroster and floor are signs of it needing replaced.

Your Answer

Mercury Grand Marquis Experts

  • #1
    Tracy Hooks
    Reputation
    5,910
  • #2
    kbro
    Reputation
    2,210
  • #3
    Js08016
    Reputation
    1,980
View All

Related Models For Sale

Used Lincoln Town Car
17 Great Deals out of 1,590 listings starting at $1,200
Used Ford Crown Victoria
895 listings starting at $2,500
Used Chevrolet Impala
507 Great Deals out of 32,641 listings starting at $1,000
Used Ford F-150
3,154 Great Deals out of 231,769 listings starting at $1,300
Used Dodge Charger
347 Great Deals out of 36,030 listings starting at $1,999
Used Cadillac DTS
33 Great Deals out of 1,624 listings starting at $2,988
Used Chevrolet Tahoe
852 Great Deals out of 40,104 listings starting at $1,900
Used Chrysler 300
339 Great Deals out of 19,644 listings starting at $1,400
Used Ford Mustang
340 Great Deals out of 42,824 listings starting at $1,488
Used Ford Taurus
194 Great Deals out of 16,180 listings starting at $1,900
Used Honda Accord
858 Great Deals out of 88,772 listings starting at $1,444
Used Chevrolet Silverado 1500
2,811 Great Deals out of 158,488 listings starting at $1,000
Used Chevrolet Camaro
424 Great Deals out of 31,674 listings starting at $3,495

Used Cars For Sale

2010 Mercury Grand Marquis LS For Sale
6 Great Deals out of 75 listings starting at $2,290
2009 Mercury Grand Marquis LS For Sale
73 listings starting at $3,200
2008 Mercury Grand Marquis LS For Sale
3 Great Deals out of 95 listings starting at $2,990

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.