Hello, i have a 2005 chevy colbalt and the front blinker is light but does not blink. what could this be ?

If its just one light that does it then replace the bulb and that should take care of it. if that dont work you can clean out the plug in for the bulb and use a little dielectric grease then see what happens if that dont work i would use a 12 volt test light to tell if there is power going to the bulb socket if no power is present you will have to trace or follow the wire and inspect it for cracks nicks or broken wire that can cause a short leaving you light dead.

It means one of your other blinkers on that side is burned out,rear or check the side lights also