Freightliner Classic A/C blowing weak!!! DYING HERE

Check the blower motor. It's either broke or clogged up. If that checks good then it could be the switch. Pm me your number if you need help checking blower

 

67 degrees just ain't gonna do it no matter how hard she blows.

 

As for the 67'F supply air temperature , what was the outdoor temperature at the time , lately lot of A/C problems are related to the fact that the systems cannot hanle the 100 + temperatures that many areas are experiencing.

 

Let the pressure out of the system.. Not the end you put freon in the other one

 

def. sounds like its not blowing very cold, another possibility is the flap's could be out of sync.

 

Check and make sure evap and heater core is clean also make sure the heater shutoff is working its behind the fuse box door might have to take the little kick panel off as well after that make sure pressures are good

 

Mines having same issues (same truck) and im blowing hot air out of the bunk side of things but cold in front side. I just replaced Condenser, pump and evap filter dryer anything else im missing?

 

Expansion valve, bunk heater control (water valve)