Where is coolant temperature sensor 2004 silverado 2500hd 6.0?

The coolant temperature sensor on a 2004 Chevrolet Silverado 2500HD with a 6.0L engine is typically located on the engine block, near the thermostat housing. It can usually be found on the driver's side of the engine, just above the water pump. To access it, you may need to remove any obstructing components, such as the air intake duct or other engine covers.