the ac in my truck keeps going to hot air. when you turn on the air it cools good some times for a long time then all of the sudden it will get hot. the compresser is still ingaged. you can turn it off and back on and it will start blowing cold air. also when you try to turn it to hot it wont change. Help please

 

Does the truck have climate control in it? If it does and the unit is set on auto at a certain temperature it will start blowing hot air to keep the temperature stable.

 

my truck does the same thing and i dont have climate control once more it was 103 in the shade yesterday and it still did it