A/c cooling cabin but not blowing hard enough

Did the dealer comment on the blower speed being low?

Check the thermostat and the water pump.

seems that the evaporator is freezing and does not allow the air to passthrough

the best way to find out if the problem is in the cabin or under the hood is to touch the heater hoses when the motor is at operating temperature. turn on the heat full blast and feel the hoses; if they are both almost too hot to touch then the problem is with your blend door or its control mechanism. if one is noticeably cooler than the other then you,ve got a clogged heater core. if they are both cool enough to touch then your motor is running too cool

depends how you are starting the ac .Always on starting the ac when weather is hot the first step is to start car ac fully down all the windows in order the ac blow push out the hot air in the cabin out and this will also do whilst driving either. When you notice that the air in cabin gets cooler then you wind up your windows. Depends also have the correct gas in the ac system. and the ac temperature sensor works ok.

Have you ever replaced the cabin air filter (AKA pollen filter) I would suggest you do that and see if it cures the low air flow problem. If the problem persists then you may have an obstruction at the cabin air intake area like a plastic bag.

first off all if a/c gas presssure is low or no gas at all ( because of some reason you have already lost it) it acts exactly how you you describe. kicks in and out. but cant cool air inside. (first make dealer check it for leaks and let them fill it with proper yellow flourescent dye added gas)

limited het in cabin heater is another issue. if engine is warm and still not enough heat inside, we can say that you have a clogged cabin heater or air pocket is in hoses connected to cabin heater. you need to bleed cooler radiator inm front. you need to raise infront of car and bleed it with bleeding screw. after this check the heat again if still not enouh heat you may need to replace cabin heater.

if engine is not warm enough when you drive slow or let it idle. this means you have a broken thermostate or it is stuck half open.

what year model is your vehicle? most 2000 and newer gm cars and trucks have cabin air filters that clog up with debris over a period of time and prevent the air from blowing as it should.

Generally if the a/c works fine at highway speeds but kicks out or slowly begins to blow warmer and warmer air as the vehicle is driven at slow speeds or is stopped the a/c condensor cooling fan is usually at fault. At highway speeds there is enough air being forced through the radiator, condenser, and oil coolers to keep everything working and cool but when the vehicle is moving slowly or is parked the electric and mechanical cooling fans have to be working to pull enough air through to keep things working. If the cooling fan isn't working or can't pull enough air through the a/c condensor the system will kick out once the internal pressure reaches a certain point. Once the vehicle is moving again the system can get rid of the heat that it has gathered from the passenger cabin, the pressure drops back to normal and the system cools again. I would start by looking for a blown cooling fan fuse in the fuse panel under the hood. Usually they are 25 amps or larger and run only the cooling fan.

the air flow does not have any thing to do with the thermostat
make sure you had the right cabin air filter and put in the right dirrection
the air flow is control by three devices calls mode door actuators, if this goes bad then you may not have enough air flow to a certain area