Dodge Ram AC not blowing cold

check for clutch slippage --and when charging system was it done at idle [which is incorrect ] or at raised rpms may be low on freon

u sound like your describing an AC system w a blockage in it. Is the compressor going on & shutting off ? Any air at all blowing? Hot/cold/cool air?

Make sure your coolig fan(s) are running while the ac is on. I''m not sure how you now that you have sufficient refrigerant in the system, but I would also have that checked. Over filled systems can act that way too! Last but not least, high and low pressure switches should be checked, amd if all else fails, check the expansion valve.

you may have over filled the ac with reon and are over pressuring the system causing the high pressure switch to activate shutting off the ac, each can is 1lb

Yes it does have a pressure relief valve so u don't blow the line or canister.Hope this helps clear your mind.

If the A/C blows cold at first, then gets hot, it may be because there is air and moisture in the system. What happens is that as the thermodynamic cycle of moving heat goes on, water in the system will freeze at the expansion valve, stopping refrigerant flow.

If you put a proper set of A/C gauges on it, the low pressure side would show zero or a negative pressure, while the high side would be >150... Usually low should be between 25 and 45, but because the system is frozen up, nothing moves, so the compressor is acting more or less as a vacuum pump.


Solution:
Have a professional evacuate the system, replace the receiver/dryer, add a bit of oil and then charge the system.

I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

sounds like u guessed right blender door is getting stuck motor is weak or mount is cracked

Your A/C sounds like it needs to be vacuumed
out and then recharged to factory specs. That
should solve the problem.

expansion valve looks like is not openning or the capilary tube is bad

To get the refrigerant in you have to have a technician purge the system first. Hope that helps.