Purchased pre-owned from dealership January 2016. I noticed the heat didn't blow as warm from the passenger side as it did from the driver's side, but the weather was getting warmer so I didn't pursue it. In October, it was a cold day so I turned the heat on. My passenger complained about the cold air. Driver side was hot, but passenger side felt like it was the outside air. (And no, it is NOT a dual climate system) I took it to mechanic who said the heater core was pplugged because the cooling system had been filled with leak stop. I didn't do it so the previous owner must have known there was a problem. He flushed and back flushed the heater core. He said it could take several flushes to get all the leak stop out because as it flakes off in the lines it will clog the heater core again, or I could replace the entire cooling sytem at once. I opted for the flush. The heat worked for 2 days before going cold again. I took it to a different mechanic who said a plugged heater core would not allow heat on one side but not the other. He said it was an actuator in the heater box. The whole dash board was torn out of the car and new actuators installed. The heat worked properly for a couple of weeks and now there is no heat on passenger side again.

I owe approximately $10,000 on the vehicle and have so far replaced : the starter, battery, heater box doors, the powertrain control module (PCM), the front brakes and front/back struts and mounts in addition to the heater core flush. The battery I can forgive, that's routine maintenance, but everything else is total BS that a dealership would sell a pre-owned vehicle with so many problems and not stand behind it. I have spent more money in repairs than payments! I'll be sure to report all the other problems individually so they can be tracked. I just wanted them to be all in one place to express the totality of the situation with this vehicle.

I too, am experiencing a problem with cold air blowing on passenger side of vehicle, and hot air on the drivers side, when heat is desired. I took the vehicle to the dealer, and they are recommending the replacement of the heater core, for $1700. This also includes the recharge of the AC. Based on what I read, this is a common problem with this make, year, and model. I texted my Service Advisor the link to this page, to see not only were there other things that could be done, before suggesting such a expensive fix; and also the substantial difference in cost for this repair. I also asked if they could contact Dodge with my concern. I will update this site on my outcome.

cold air passenger side

I have a 2010 Dodge Journey 3.5 with multiple cabin heater problems. No heat on passenger side. The mechanic found the heater core was bad and replaced it at a cost of $950.00 at the Dodge Dealer in St Catharines Ontario. The dashboard was removed to access the heater core. Two weeks later I noticed the heat by left side vent normal, but by the right side just cool. The mechanic at the Dealer said, that is normal the difference in temperature, I don't trust that. Now the difference in temperature between the left and right side is minimum 50%..