Steering Column Repair: steering column, coat hanger, steering column

Question
when i accelarate i start to hear a knocking sound. my chevy has about 67,000 miles and is a 2003. what do you think  

Answer
Hello Melissa,
I'm sorry but I am terrible with sounds. It's one of those things that I'd have to hear myself. I once ran over a coat hanger. It somehow became lodged in the frame and sounded like a bearing going out in my left front. I didn't realize it was only the hanger scraping the ground until I looked underneath to jack the car up.
I can't even attempt to guess what is causing your noise.
Sorry I couldn't be of more assistance.
-Jay