check gas check battery check starter most local auto parts stores can check these item for free take out and bring down or limp it there good luck
The 2003 GMC Sierra-2500HD has 16 valves.
The 2003 GMC Sierra-1500 has 12 valves.
The 2003 GMC Sierra-1500 has a V6 engine.
The 2003 GMC Sierra-2500HD has a V8 engine.
The 2003 GMC Sierra-1500 is a gas-powered vehicle.
The 2003 GMC Sierra-2500HD is a gas-powered vehicle.
The 2003 GMC Sierra-1500 has overhead valves (OHV).
The 2003 GMC Sierra-2500HD has overhead valves (OHV).
The 2003 GMC Sierra-1500 has a 5-speed manual.
The 2003 GMC Sierra-2500HD has a 5-speed manual.
YES.
The height of the 2003 GMC Sierra-2500HD is 6 ft. 4.2 in. (76.2 in.).