How do you adjust the driver side door on a 2001 Chevy Blazer to close tighter to the moulding so air will not be heard?

if you're having a gap between your door and frame, check your hinges to see if the bushings or pins are wearing out. this is pretty common with Chevy s-10s and blazers. go to your local body shop and it'll cost you approx $25 to fix (you have to replace the pins and bushings and this problem should be solved). or if you have a few friends who are willing to hold the door up for you while you replace them stop into your local parts store and pick 2 sets up, 1 for the top hinge and 1 for the bottom hinge. on my dad's sonoma his pin actually has fallen out from and the door pretty much will fall off one of these days. on my s-10 the top pins bushings are worn out and it tilts a bit. i talked to a friend who works at a gmc garage and he said if you don't take care of it, eventually it will bend your door frame so that it won't fit properly even if you decide to fix it. !