This afternoon I was having some fun with my car and I went to shift it from first to 2nd real quick and it went in hard but engaged and when I went to go from 2nd to 3rd nothing. I only have forward and backward movement at the shift lever. I can manually shift the transmission under the hood but I can't get it to shift at the shifter. Is it my shifter? or is it my cables stretched out. It is a 99 chevy cavalier z24. The cables have about 160K on them. When I use the shifter and the tranny is in neutral I can shift it in to gear when i push the shifter foward but I can't get it to come back out of gear with the shifter. Your help is greatly appreciated!