it blows air so loud and fast but not cold enough,

so is it normal to blow air that fast and that loud when i press LOW button? and since it doesn't get cold enough i have recharge it, but i don't where is the low pressure valve is?

thanks in advance

 

If you are pressing the temp down low button, it can make the fan go fast as it is trying its hardest to reduce the temperature. If you are pushing the fan down speed button, and the fan goes fast, there is a control logic problem in your AC brain. There is a pressure sensor that tells the system if freon pressure is too high or I guess too low and it will turn off the compressor under those conditions. You could have multiple things going on; they have to be sorted out one by one.

 

thanks for reply

i was checking if it is normal, now i got it.
it's four years old and has 100,000 miles on it and couple of my friends told me that for this car i may have to recharge because it may be evaporated because of heat or there is hole in metal hose because when i am going fast or when my transmission start working really good i can feed cold air.

so i want start one by one by recharging it and see if it works, so want to know where is low pressure valve is? because i can't even find high one too.

btw what do u recommend?