[tractorcarpenter]

My 2006 Colorado 4x4 with the 5 cylinder is giving me trouble, when I push the clutch down and turn the key most of the time I get no crank. Some times the starter will turn a rotation or two. Sometimes it will start and then die. After several tries it will finally start. I put a new starter on it and no help. I don't have a sophisticated key .( no chip ) . I tested my battery and it is good. it does have a reflashed computer, but its been in for three years and I havent had any trouble, until recently. It seems to be worse on rainy/snowy days. Any Ideas ? Thanks
Also the lock in the lower right dash light array comes on when I try to start it and stays on for a why after it starts, but its not flashing