Blend doors broken?? Or something else?
 

My 03 has mediocre temperature A/C.. for a regular cab truck with only 42k on it i thought it would be colder. I realized that just my drivers side 2 vents are blowing.. nothing on any setting from the passenger 2 vents. When i turn on just vent.. i get vent. When i turn on just floor.. i get all floor. When i turn on mix of floor and vent.. i get just vent. But my A/C must only be at about 50-60degrees from the vents.. its never cold enough to turn off throughout my whole ride.

I thought that when the blend doors broke you only had heat.. or only had cool.. or had no vents at all. I wasnt sure if there was more than one blend door that could break?

Any thoughts on this??