I have a 2002 Chevy Trailblazer. It's drivers side low beam goes in and out.?

[Shaun245582]

Whne I give a good thump, it will come back on, but will eventually go back out. Any ideas out there on how to fix it or what the problem is? .

[Jon]

sounds like you have a loose wire, take the headlight apart its easy to do