03 Montero Ltd heater works great on the drivers side of vehicle, but no heat comes out of any vents on the passenger side. No matter if you change air from dash to floor no heat is generated, but cool air come out at passenger side with same force as drivers side. Please help, as I'm living in a Canadian Winter!

 

Were you able to solve this problem. We have a 2002 Montero with the same issue.

Thanks.