Hey, I own a 2002 Chevy Blazer LS 4 door with a 4.3 Vortec engine. This is my second Blazer that I have owned before and had it for a good 8 months. I was just getting ready for work and got into my vehicle and was proceeding to reverse it out of the driveway when it would not move at all. Made sure my parking brake was off and my emergency brake as well. I tried going forward as well and it would not move at all. Need some help and suggestions. I assume it’s something with my transmission filter or a clog or leak somewhere in the system but I haven’t found anything leaking so far. I’m pretty new to this website as well so I’m hoping with your guys expertise I can find a problem and be able to fix it instead of replacing my whole transmission. It starts up just fine and everything just will not move