2006 Silverado won't start
Make sure battery has a full charge and battery connections all good. That is my first thought. The diagram below is for starter motor, see the fuses, check them. Also, use a test light and check voltage at fuses. Any testing at starter motor, make sure tranny is in park or neutral and parking brake is set.
If you turn the ignition key and the lights go out but the truck doesn't turn over, you most likely have a defect in the starter or solenoid.
Search Chevrolet Silverado 1500 Questions
Chevrolet Silverado 1500 Experts
Find great deals from top-rated dealersTMSearch
Related Models For Sale
Used Cars for Sale