after getting my lower ball joint replaced i now hear a loud noise do not know where it is coming from but eventually my MIDDLE Air conditioner does not work and when i change the mode of the AC it stays the same only the sides and front defroster works and is the only thing that turns on when i turn on ac middle doesnt work anyone have a solution?

 

Dude - I got the same problem - but my side vents don't even blow anything -just the Windshield - if you find out anything - please let me know.

Thanks -

 

i could be wrong but its the servo motors that might be out.