get odd strapping noise when in neutral or park and brake light come on all star

Do you mean an odd scraping noise? If you're getting this, and the park and brake lights are on, sounds like your brakes are worn. Those lights come on when the brake reservoir is running low, which it does when the brakes are worn. Get your brakes checked! http://repairpal.com/chevrolet-within-10-miles-of-sacramento-california-95822