2004 Mercury Grand Marquis

10

Asked by Nov 20, 2016 at 10:14 AM about the 2004 Mercury Grand Marquis

Question type: Maintenance & Repair

The air blower will not trun off when the "OFF",
button is pushed.
Previously the blend door actuator,  I was told is
the problem. The car hvac was blowing hot air on
ac mode. I was told to disconnect the power too
allow the codes to clear. This worked, but know I
can't s get the thing to trun off. Every thing works
on the controls but the off to trun off the blower.
For example.. I get in the car and trun the key and
start the car up. The car is running and the air is
blowing through the vents. I press off and nothing,
I press ac and it began to get cold, I press off and
the ac and the cold air stops, but the blower
continues. This occurs in heat mode too.
Also, the vents have a hard time changing from
defrost,  to vents, and it will not go into floor mode.
If you like to decuss thus with me please send an e
mail to me... albertoorozcom at hotmail . Com
Or you can text me nine zero nine, two three eight,
nine two zero two
Thanks in advance

3 Answers

1,165

The slow moving parts indicate a vacuum leak going to the system. There are guys on this forum who know a lot about this. A cracked vacuum hose somewhere? See what they say.

1 out of 1 people think this is helpful.
10

10-4 I started reading some of the input and trying to get a little more understanding. Currently in So. Cal and half way through autumn. Hopefully I get the information I need before summer time. Thanks

1 out of 1 people think this is helpful.
1,165

Check any small vacuum hoses under the hood going to the intake manifold. See if they are cracking, or if one is not tight on a fitting. Find which one, when disconnected, makes the heater doors stop working. My car has the manual heater a/c, so it's simpler.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Grand Marquis

Looking for a Used Grand Marquis in your area?

CarGurus has 5 nationwide Grand Marquis listings and the tools to find you a great deal.

Postal Code:

Search Mercury Grand Marquis Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Mercury Grand Marquis Experts

#1 Tracy Hooks
Tracy Hooks
Reputation 5,030
#2 kbro
kbro
Reputation 2,030
#3 Js08016
Js08016
Reputation 1,580
View All

Related Models For Sale

Used Lincoln Town Car
8 listings starting at $9,995
Used Chevrolet Impala
45 Great Deals out of 815 listings starting at $1,995
Used Ford F-150
351 Great Deals out of 6,361 listings starting at $1,000
Used Chrysler 300
63 Great Deals out of 924 listings starting at $1,570
Used Chevrolet Tahoe
325 listings starting at $6,477
Used Honda Accord
83 Great Deals out of 975 listings starting at $2,600
Used Buick LeSabre
9 listings starting at $6,995
Used Ford Taurus
16 Great Deals out of 251 listings starting at $2,287
Used Toyota Camry
37 Great Deals out of 1,322 listings starting at $1,699