Whyt would hot air blowi from a/c, heater and defrost setting

Asked by Jun 10, 2014 at 08:51 PM about the 2009 Mercury Grand Marquis

Question type: Maintenance & Repair

When turn on a/c or heat or defrost from Control Assembly nothing but hot air blows out of vents.  Bland door motor and actuator have been checked and Okay.  What else could be the problem.

3 Answers

20

im having the same problem..no matter what setting only hot air comes out....and from reading so many different post...its seems like this is a big issue that mecury has

2 of 2 people found this helpful.

Un plug low pressure switch pressure goes up havnt paper clip wire on two lead wire that go to that switch

190

i just got new blower motor in now it is blowing hot air before i had it instaled it was blowing cold air

2 of 2 people found this helpful.

Your Answer

Add photo

Related Questions

Grand Marquis

Looking for a Used Grand Marquis in your area?

CarGurus has 1,835 nationwide Grand Marquis listings starting at $2,000.

ZIP:

Search Mercury Grand Marquis Questions

Mercury Grand Marquis Experts

#1 Tracy Hooks
Tracy Hooks
Reputation 5,520
#2 kbro
kbro
Reputation 2,080
#3 Js08016
Js08016
Reputation 1,790
View All

Related Models For Sale

Used Ford Crown Victoria
16 Great Deals out of 1,221 listings starting at $1,595
Used Lincoln Town Car
36 Great Deals out of 1,791 listings starting at $1,500
Used Chevrolet Impala
590 Great Deals out of 34,066 listings starting at $899
Used Ford F-150
2,059 Great Deals out of 207,339 listings starting at $1,499
Used Dodge Charger
454 Great Deals out of 29,325 listings starting at $2,300
Used Chrysler 300
405 Great Deals out of 19,199 listings starting at $850
Used Honda Accord
947 Great Deals out of 77,739 listings starting at $899
Used Ford Taurus
269 Great Deals out of 20,573 listings starting at $1,995
Used Cadillac DTS
56 Great Deals out of 1,612 listings starting at $1,575
Used Chevrolet Tahoe
558 Great Deals out of 31,371 listings starting at $1,500
Used Ford Mustang
543 Great Deals out of 45,845 listings starting at $1,999

Used Cars For Sale

2011 Mercury Grand Marquis For Sale
33 listings starting at $4,495
2010 Mercury Grand Marquis For Sale
88 listings starting at $3,150
2009 Mercury Grand Marquis For Sale
6 Great Deals out of 83 listings starting at $3,599
2008 Mercury Grand Marquis For Sale
11 Great Deals out of 138 listings starting at $2,250
2007 Mercury Grand Marquis For Sale
8 Great Deals out of 132 listings starting at $2,495

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.