Ac blowing hot

Asked by Jun 14, 2016 at 05:59 PM about the 1998 Mercury Grand Marquis 4 Dr LS Sedan

Question type: Maintenance & Repair

My car 98 grand marquis is blowing hot air
even when it's put to cold . It use to blow cold if
battery was taken off but when switched to hot
air it won't switch back to cold ....could this be
the temperature switch or do I need a new
compressor n etc.

1 Answer

1,245

Is compressor turning? Look at clutch. Could be the pressure valve. Right out there when you can see it. Wires uplug, it unscrews. Also could be a a/c relay. Automatic climate control? or standard?

Your Answer

Add photo

Related Questions

  • Ac blowing hot 1 answer

    My car 98 grand marquis is blowing hot air even when it's put to cold . It use to blow cold if battery was taken off but when switched to hot air it won't switch back to cold ....could this be the...

    1998 Mercury Grand Marquis 4 Dr LS Sedan

    -

    Maintenance & Repair

  • AC not blowing 1 answer

    After being parked for an hour I started car and ac doesn't​blow at all. I've checked fuse and changed any and every setting but I get nothing. Do I just change the motor out or is there something...

    2000 Mercury Grand Marquis LS

    -

    Maintenance & Repair

  • Why does the air conditioning keep blowing hot air 7 answers

    Hello, We have a 2005 Mercury Marquis, and the air conditioning keeps blowing hot air. It has been to the car dealer eight times. Also the dash panel gets hot as well. Every time we take it to the dea...

    2005 Mercury Grand Marquis GS

    -

    Maintenance & Repair

  • 2004 Grand Marquis Blen Door Changed But Still Blowing Hot Air 3 answers

    Car was blowing hot air when on cold setting so after some research everything pointed towards the blend door actuater. So after some painstaking effort we put in a new one, but nothing has changed...

    2004 Mercury Grand Marquis

    -

    Maintenance & Repair

  • my blower fan is on high and i can not turn it off blowing hot air even tho it is on air condition had to pull the fuse to stop it .do you know what is wrong? 1 answer

    heater fan on high and won'turn off . blowing hot air even on aircondition . had to pull the fuse to stop it

    2006 Mercury Grand Marquis

    -

    Maintenance & Repair

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
34 Great Deals out of 1,791 listings starting at $1,500
Used Ford F-150
2,068 Great Deals out of 207,301 listings starting at $1,499
Used Ford Taurus
270 Great Deals out of 20,569 listings starting at $1,995
Used Honda Accord
941 Great Deals out of 77,703 listings starting at $899
Used Cadillac DeVille
4 Great Deals out of 1,626 listings starting at $1,988
Used Buick LeSabre
20 Great Deals out of 1,919 listings starting at $1,000
Used Ford Mustang
543 Great Deals out of 45,840 listings starting at $1,999
Used Chevrolet Tahoe
556 Great Deals out of 31,361 listings starting at $1,500

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.