92 k1500 z71. trucks been running fine lately, but yesterday it was fairly cold out and my truck wouldn't start, i don't know much about diagnosing vehicles but it was suggested to me that i could use Heet gas line antrifreeze/water remover and in the mean time, pour a little gas in my carb so i could make it to work on time. i was told that i most likely have a frozen fuel line, i had about a quarter tank, so i dont know, but if it is my fuel line freezing.