1991 Mercury Grand Marquis Heater A/C only delivers super hot air no setting alters this except OFF

55

Asked by May 22, 2017 at 01:53 PM about the 1991 Mercury Grand Marquis 4 Dr LS Sedan

Question type: Maintenance & Repair

my 1991 Mercury Grand Marquis has the Automatic temp control ... recently the
heater a/c only delivers super hot air to cabin..no setting on control changes
this except OFF.... repair suggestions?  

2 Answers

55

More Info: controls do change air flow to defrost/floor/dash etc. Fan speed can be changed. AC settings with coldest temp still delivers super hot air, however to dash vents.

1 of 1 people found this helpful.
10

Actuator door may not be working properly. It controls whether heat or cooling comes into the vehicle.

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 Ford F-150
609 Great Deals out of 9,525 listings starting at $2,500
Used Ford Mustang
987 listings starting at $3,900
Used Ford Taurus
30 Great Deals out of 324 listings starting at $4,988
Used Honda Accord
47 Great Deals out of 1,210 listings starting at $1,795
Used Chevrolet Camaro
963 listings starting at $11,965

Used Cars For Sale

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.