MY AC BLOWS COLD AND STRONG . BUT IT MIGHT WORK FOR HOURS OR JUST A COUPLE MINUTES BEFORE IT STOPS BLOWING COLD AND JUST BLOWS ?

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Car AC blows cold then blows warm Ricks Free Auto Repair Advice

You'll need to have someone check the refrigerant charge with a manifold gauge.
If the low-pressure side is lower than it should be but the high-pressure side is normal or showing higher than it should, your orifice tube may be clogged.
Seriously, start by having the refrigerant pressures checked.

You would need to find out if the compressor continues to run when the cold air stops.

if the ac system is very strong and there a lot moisture in the air the a'c evaporator core will freeze up and stop air flow threw the cold core only use the recuiculation part to cool the car down about 5-10 min the turn the recuit off

Sounds like the blower motor or the connection to it is failing.Next time it stops give the area below the glove compartment a good whack,if the blower does anything,change it.

I recharge unit for your ac

you have moisture in the system this causes your expancion valve to freeze up an stop working, thats why it works for sort time and when it de-freezes stars working again. you need to do a EVAC & RECHARGE with a good AC service equipment, specially attention to pull vacumm por at least 20minutes so you get all moisture out of the system.
Good luck

it s getting low on freon

AC clutch relay. rockauto.com $11

your ac compressor is freezing up try not putting it on cold all the way. put thermostat towards the red jus a lil but still on the cold side to see if that helps