new weather stripping.
caulking
or new window assembly
You will need to remove the inside door panel of your Chevrolet Blazer. Remove the window retaining clips. Put the window back into the window track. Tighten the window retaining clips.
Because it hates you!
if your 2000 blazer is like my '99 (2 dr) there is no separate rear window washer tank; its at rt frt corner of engine bay.
see related link i have a 94 s10 blazer and if you use your key with the back hatch handle you can open it
It uses the same tank that the front windshied uses.
Remove the drivers side inside door panel. Remove the retaining clips from the window track. Place the new window in the window track and tighten the retaining clips.
If you are unable to get the back glass of a 2002 Trailblazer open, you can remove the glass or take the window panel off of the hinges.
stabizer bar links that causing the rattling..
The blazer must be in park for the rear hatch button to work. If you have the blazer in drive the button will not open the hatch unless it is in park!!! If there is still a problem maybe try checking the fuses! The actuator could be broken in the rear that releases the window so you can open the back. This happened to my 2003 Blazer and my neighbor's 2002 Blazer. By removing the back panel (high likelyhood the panel will break when you remove it) and replacing the actuator that could solve your problem. Both I and my neighbor would have had to order the whole actuator in order to replace the tiny plastic piece that broke. Instead we drilled a whole and rigged it with some tough wire. Works now but we both have broken back panels...even the dealership broke one. Good luck. SEE RELATED LINK for 1997 Blazer
The latch on the actuator is probably broken... it's a very common problem for the Blazer. Pull off the trim on the rear door, and you'll be able to see it (and replace it) for yourself.
I'm getting a rattling sound, too. But my problem is in my speakers. I'd have to guess you either need new speakers, or your problem could be in the hatch door. A friend of mine had that problem. His hatch window was loose or something, and that rattled, and eventually leaked. Hope that helped.
Front to back on driver side 1 3 5 and on passenger side front to back 2 4 6 .