i have a 95 pws and iv charged the a/c with the low side reading @47psi and the high side reading @ about 270psi @ around 95 degrees outside . the a/c clutch is cycling like its supposed to, condenser is sweating . the air is cold but its not cold enough to cool the cab. id say its about 60ish degrees blowing out the vents and I don tknow what else it could be that's causing it not to get cold? would anyone have any ideas????? any help would be greatly appraitede!!

 

Are you running the AC on Max?

That will help lower the cabin temps as it cools the air in the cab more as it is recycled in the cab.

 

its on its coldest setting and on max a/c

 

Check the heat blend door to see if it not fully closing the heater air flow off.

On my 89 F250, during the summer I just bypass the heater core and that rids the heat soak from the heater core inside the AC/heat box. Doing that I get ice cubes tossed from the vents!

 

when the air is off completely I feel hot air coming through the floor board is that a cause?

 

No, that means you have a hole in the floor.

 

and how would I know if its working properly???

 

Sorry but floor boards means the floor to me. If you have holes in the floor there is your heat loss.

 

Turn the AC off and turn the fan on with the temp selection on cold. Do you feel warm outside air blowing, or is the air hot?

 

imma try it tonight cause I don't know if ill be able to tell the difference right now given that its almost 95 outside and imma report back

 

the air does not blow hot at all when I cut a/c off and turn it to vent with the coldest setting

 

Then you have heat intrusion somewhere else into the cab.

 

Would weather stripping be a cause ?i have a box mod e cig and when I blow it , the smoke goes into the driver side window

 

You mentioned you felt hot air near the floor. You should find where it's coming from.

 

I would get a thermometer and stick it in the vent, I did the same thing, I recharged my system and though it wasn't blowing very cold, after sticking the thermometer in the vent and letting it sit with the AC on for about 15 minutes, it actually went down to 47*F that's pretty cold when the temp outside was a little over 80*F. Remember AC units are made to pull the humidity from the air, they are not made to be an actual refrigerator unit.