Fix Coolant Leaks: 2006 GMC Sierra 2500 HD SLT 6.0L V8 Extended Cab Pickup

Follow the steps in this video to see how to fix minor coolant (antifreeze) leaks in your 2006 GMC Sierra 2500 HD. Leaking coolant / antifreeze is one of the more common types of leaking fluid from Sierra 2500 HD engines. Engine coolant (which is also called antifreeze or anti-freeze) moves through the inside of your Sierra 2500 HD engine and keeps it from overheating. Coolant / antifreeze can leak from the reservoir, radiator or any hose, in 2006 Sierra 2500 HD with the 6.0 liter engine. However, a coolant leak (aka an antifreeze leak) is most likely to occur where the hoses connect to the engine or radiator. Otherwise, your Sierra 2500 HD may have a radiator leak. This video shows you where the coolant reservoir, hoses and connections on your 2006 Sierra 2500 HD SLT are located and the steps needed to fix minor leaks.