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

10

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.

1 of 1 people found this helpful.

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
12 listings starting at $1,850
Used Chevrolet Impala
146 Great Deals out of 1,085 listings starting at $1,995
Used Ford F-150
597 Great Deals out of 9,608 listings starting at $2,295
Used Dodge Charger
57 Great Deals out of 742 listings starting at $2,950
Used Cadillac DTS
4 Great Deals out of 26 listings starting at $5,995
Used Chrysler 300
84 Great Deals out of 845 listings starting at $1,888
Used Chevrolet Tahoe
7 Great Deals out of 982 listings starting at $7,600
Used Ford Mustang
998 listings starting at $3,900
Used Honda Accord
52 Great Deals out of 1,214 listings starting at $1,795
Used Ford Taurus
36 Great Deals out of 328 listings starting at $4,988
Used Chevrolet Silverado 1500
186 Great Deals out of 12,295 listings starting at $2,750
Used Dodge Challenger
669 listings starting at $10,995

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.