AC Will not engage

40

Asked by Nov 28, 2015 at 04:53 PM about the 2009 Mercury Mariner Premier V6

Question type: Maintenance & Repair

Needed to  replace dual radiator fans , because the drivers side would not
work , as car started to get hotter the other fan kicked in, the one for a/c and
over heating . I also notice that a/c didn't work ,so I thought because of fan
that's why. I changed fan and all that is good , fan works when needed.. But
a/c never worked. Blower is ok goes from 1 to 4 . The lights turn on for a/c
even on high . But no engage . What should I check.first.

3 Answers

19,200

First make sure there is freon in the system. If no freon in system it will not come on.

40

If there was no freon the over heat fan would stay spinning ,with a mariner and a escape they stay on when the pressure senser is reading to low or to high in freon, I know that because I had that problem one ,and fixed it from learning here . So just don't know why the fan and a/c went out at same time now.

1 of 1 people found this helpful.
40

i lost my booklet for fuses and stuff, what controls just the compressor alone what no# is the fuses and relays to check . Doesn't ford have a download site for the booklet

Your Answer

Add photo

Related Questions

  • AC Will not engage 3 answers

    Needed to replace dual radiator fans , because the drivers side would not work , as car started to get hotter the other fan kicked in, the one for a/c and over heating . I also notice that a/c didn...

    2009 Mercury Mariner Premier V6

    -

    Maintenance & Repair

  • 30 amp ac fuse keeps blowing in my 2010 mercury mariner 1 answer

    The ac started blowing warm so tried to charge system found ac would not engage found blown fuse replaced it but it blew 30 seconds later

    2010 Mercury Mariner Premier

    -

    Maintenance & Repair

  • 2008 Mercury Mariner hybrid A/C does not cool adequately.

    This is a hybrid. The AC was not cooling adequately. I had the system evacuated and recharged. It still does not cool adequately. The low side pressure is 55 psi. I am not sure what the high side ...

    2008 Mercury Mariner Base

    -

    Maintenance & Repair

  • hearing a clatter at high RPM but not at idle 1 answer

    At first I thought it might be the gas but once the clatter starts it does not stop until the speed is reduced. The noise tends to get louder the longer I drive it. Dealer said it was a small piece in...

    2008 Mercury Mariner Premier

    -

    Maintenance & Repair

  • My horn is not working..fuse? 1 answer

    Someone told me my horn is not working on my 2009 Mercury Mariner because a fuse might be blown. I looked on page 229 of the manual and it says Fuse 24 (20amps) is for the horn relay. Yet when I l...

    2009 Mercury Mariner Base V6

    -

    Maintenance & Repair

Mariner

Looking for a Used Mariner in your area?

CarGurus has 1,267 nationwide Mariner listings starting at $2,950.

ZIP:

Search Mercury Mariner Questions

Mercury Mariner Experts

#1 2022erik
2022erik
Reputation 180
#2 Tom Demyan
Tom Demyan
Reputation 150
#3 kbro
kbro
Reputation 100
View All

Related Models For Sale

Used Ford Escape
1,275 Great Deals out of 85,055 listings starting at $995
Used Ford Explorer
928 Great Deals out of 63,175 listings starting at $799
Used Mercury Mountaineer
31 Great Deals out of 1,181 listings starting at $1,980
Used Chevrolet Equinox
1,065 Great Deals out of 88,337 listings starting at $1,972
Used Jeep Grand Cherokee
1,037 Great Deals out of 72,568 listings starting at $1,200
Used Mercury Mariner Hybrid
3 Great Deals out of 89 listings starting at $2,900
Used Jeep Liberty
237 Great Deals out of 7,376 listings starting at $300
Used Honda CR-V
978 Great Deals out of 56,277 listings starting at $1,000
Used Toyota RAV4
918 Great Deals out of 63,554 listings starting at $1,300
Used Ford Edge
822 Great Deals out of 47,517 listings starting at $2,990
Used Mazda Tribute
18 Great Deals out of 938 listings starting at $995
Used Honda Pilot
409 Great Deals out of 23,399 listings starting at $995
Used Nissan Murano
410 Great Deals out of 24,712 listings starting at $1,499
Used Ford Fusion
1,267 Great Deals out of 76,395 listings starting at $1,500
Used Mercury Milan
39 Great Deals out of 966 listings starting at $995

Used Cars For Sale

2009 Mercury Mariner Premier V6 For Sale
20 listings starting at $4,995

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.