If the windshield itself is rattling, you need to get it serviced by an auto glass professional. The windshield is an integral part of the air bag system. My guess is that you have a rattle in the dash. Those are very hard to pin down. An automotive stethoscope can help.
Read this article: http://free-auto-repair-advice.blogspot.com/search/label/stethoscope
Rick
I'm a retired ASE Master/L-1 Technician. I still keep current with the latest automotive technology. Visit my blog for cool articles and TSB's: http://free-auto-repair-advice.blogspot.com
The 2003 Chevrolet Silverado-1500 has 12 valves.
The 2003 Chevrolet Silverado-1500 has a V6 engine.
The 2003 Chevrolet Silverado-2500HD has 16 valves.
The 2003 Chevrolet Silverado-1500 has overhead valves (OHV).
The 2003 Chevrolet Silverado-2500HD has overhead valves (OHV).
The 2003 Chevrolet Silverado-1500 is a gas-powered vehicle.
The 2003 Chevrolet Silverado-2500HD is a gas-powered vehicle.
The 2003 Chevrolet Silverado-1500 has a 5-speed manual.
The 2003 Chevrolet Silverado-2500HD has a V8 engine.
The 2003 Chevrolet Silverado-2500HD has a 5-speed manual.
One can purchase a 2003 Chevrolet Silverado from one's local Chevrolet car dealer. Websites such as Yahoo! Autos, Cars, and AutoTrader provide listings for cars, such as the 2003 Chevrolet Silverado, for sale.
The height of the 2003 Chevrolet Silverado-1500 is 5 ft. 11.2 in. (71.2 in.).