Help installing a fridge water line, cannot find any info online looked everywhere
I'm trying to save some money and install a water line going from under the sink to a new fridge we just purchased, I installed a 3/8ths x 3/8ths/ to 1/4th tee, when nothing is connected water comes out of the 1/4th inch hole on the tee just fine, but when I install the 1/4 freezer line 0 water comes out the other end at all, no matter how tight or loose it is, I noticed sometimes water will come through when its super loose but then water also comes out and leaks.
Maybe the water filter could be causing an issue? but when I have the new freezer line installed for the fridge and the water on the sink still works, or maybe something wrong with the new line, I'm really lost I and I cannot seem to figure out the issue, any help is super appreciated, please and thank you.