How can i center my left joystick for my xbox 360 controller? It is constantly moving upwards

Switch your gamepad to 'analog' mode by pressing small button 'MODE' at the center. Light under that button should turn red (indicating analogue mode) from green (indicating digital mode).

Sometimes your joystick on xbox controllers can become stuck. To fix this you can do one of two things. you can ether buy a can of air used to clean out computer keyboards and spray it inside the analog stick. Sometimes if that does not work you can also disassemble your controller with a t8 torc screwdriver. Ones disassembled use hot water on and below the analog stick to get rid of unwanted grim. This should fix the problem.

Sad to say but you have to replace the joystick. If the joystick board is damaged, there's no way to repair it.

Hope this helps. :D

One way to solve this is to use a Torx size 8 T8 screwdriver.(a type of x-screwdriver).
http://www.xbox360forum.com/forum/xbox-360-modding/91642-screwdriver-xbox-360-controller.html
http://www.amazon.com/Silverhill-Xbox-360-Controller-Screwdriver-Resistant/dp/B001862BY8

Please call 1-800-4MY-XBOX for troubleshooting steps.j

One of two things. First, when you turn on the power, do not have anything pressing against the joysticks. It will sometimes cause the problems you are describing. If that is not the case, I would assume you got something stuck under it or spilt something on it. Good luck.

hi its better to replace a new joystick

Not hard the controllers wireless are all the same. You need a special tool a t8 torq tamper tool go on ebay they have them cheap with that you will be able to swap parts. remember there is one hidden screw in the lower center of the controller under the serial number sticker

I would put super glue on it to secure it

I had this same problem with my 360 controller (after modding it, but the solution should be the same..) If you pull up on any 360 joystick it will stick the same way.

The quickest fix would be to take some sandpaper on the inside of where the joystick touches the controller shell, sand it down just enough so the joystick is moving smoothly.

More professional ways would be to cut the little piece of metal that sticks out and goes into the joystick. Just a very small amount, too much will make it hard to press the right thumbstick button.
You could also try some old fashioned grease, just a little bit on the inside, nothing noticeable from the outside.

Also make sure the controller is put back together right, I've taken apart many 360 controllers and sometimes joysticks stick when there's a wire in the wrong place and the shell won't close all the way. (The rumble motors particularly).
Hope this helped!