I have a 03 grand marquis with the digital thermostat. When i turn on the car the air Only blows out the defrost and floor but if i wait it eventually blows out my vents. How do i fix this problem?

I have a 03 grand marquis with the digital thermostat. When i turn on the car the air Only blows out the defrost and floor but if i wait it eventually blows out my vents. How do i fix this problem? 2 Answers

Its not the vacuum line, i have already checked it.

I have a 2009 Mercury Grand Marquis Ultimate Edition and the air blows in different places when ever it wants. It may go from the floor to the panel and then to the defroster constantly moving when it 1 Answer

I have a 2009 Mercury Grand Marquis Ultimate Edition and the air blows in different places when ever it wants. It may go from the floor to the panel and then to the defroster constantly moving when ...

my 2010 grand marquis ac blows when I turn on the heater 1 Answer

It just started when I turn the heat on the AC blows. Every now and than when you hit the floor button you hear a noise from the glove box area alomost like a high pitch grind

My 1995 mercury grand marquis has a short somewhere and I need to find out how to trouble shoot the problem it's draining the battery and I am having to disconnect the battery when I'm not using it 2 Answers

To add to that problem I also have no use of my wipers but I can spray the fluid to clean the windshield any advice ? Also I have a problem when I press on the break I can use the blinker and hea...

I have a 1998 mercury grand marquis and when I go to put the a/c on only hot air blows out, what can I do to fix this problem? 1 Answer