My 07 Pacific started last winter only blowing heat on drivers side. Passenger and rear blew cool air. Now that we have turned to air conditioning it is blowing cold air from drivers side but not so cold air on passenger and rear. However, if we turn the climate control on the passenger side to HI heat it blows cold air on that side (still no cold air in rear). Any ideas? Dealers are telling me $1,000 to take dash apart and see what is wrong.

 

You have a Broken "MODE" Or Blend door. The Only way to determine which, is to actually see it.....The Only way to actually see it , is to remove the heater box from the vehicle, and dissasemble it.....

If it turns out that the doors are intact......You are still ahead of the game, because the box needs to be removed for Motor replacement anyway