Only blowing heat on driver side - SOLVED

[emmagator]

New to me 2002 Montero limited. When buying I tested the heater and it worked, but I only checked driver vent, because that's where I was sitting. Took it in for new timing belt, water pump, and today I noticed it blowing cold air out if all vents except driver side closest to window. Not sure if it was like this when I bought it, or air in the system from water pump change. I tried to bleed coolant system, but haven't had any luck. Could it be something else other than air in the system?

 

[emmagator]

No one? Blender door not opening or closing?

 

[emmagator]

FIXED

Hopefully this will help someone else with this issue. I ended up draining the coolant and back flushing the heater core. I used the heater lines from underneath, in front of the oil pan. I backflushed with a garden hose, both the front and rear heater cores. Lots of rusty colored stuff came out. Front blows very hot now!!