my 2010 grand marquis ac blows when I turn on the heater

Asked by May 22, 2017 at 04:16 PM about the 2010 Mercury Grand Marquis LS

Question type: Maintenance & Repair

It just started when I turn the heat on the AC blows. Every now and than when
you hit the floor button you hear a noise from the glove box area alomost like
a high pitch grind

1 Answer

Temperature modulator. They fail alot in this car. YouTube how to bypass it. It's super easy. Once you no what your looking for it takes maybe 10min. Way easier and cheaper than tearing your whole dash out to replace it.

Your Answer

Mercury Grand Marquis Experts

  • #1
    Tracy Hooks
    Reputation
    5,700
  • #2
    kbro
    Reputation
    2,120
  • #3
    Js08016
    Reputation
    1,850
View All

Related Models For Sale

Used Lincoln Town Car
12 listings starting at $1,850
Used Chevrolet Impala
73 Great Deals out of 929 listings starting at $1,900
Used Dodge Charger
79 Great Deals out of 812 listings starting at $1,999
Used Ford F-150
447 Great Deals out of 9,148 listings starting at $3,000
Used Chrysler 300
84 Great Deals out of 1,007 listings starting at $1,795
Used Ford Mustang
11 Great Deals out of 1,189 listings starting at $2,995
Used Cadillac DTS
25 listings starting at $4,995
Used Chevrolet Tahoe
5 Great Deals out of 641 listings starting at $6,871
Used Ford Taurus
20 Great Deals out of 303 listings starting at $2,973
Used Buick LaCrosse
18 Great Deals out of 435 listings starting at $7,700
Used Honda Accord
65 Great Deals out of 1,093 listings starting at $1,200
Used Chevrolet Silverado 1500
181 Great Deals out of 10,712 listings starting at $2,500

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.