Fix Coolant Leaks: 2005 GMC Sierra 3500 SLE 6.0L V8 Crew Cab Pickup (4 Door)

Follow the steps in this video to see how to fix minor coolant (antifreeze) leaks in your 2005 GMC Sierra 3500. Leaking coolant / antifreeze is one of the more common types of leaking fluid from Sierra 3500 engines. Engine coolant (which is also called antifreeze or anti-freeze) moves through the inside of your Sierra 3500 engine and keeps it from overheating. Coolant / antifreeze can leak from the reservoir, radiator or any hose, in 2005 Sierra 3500 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 3500 may have a radiator leak. This video shows you where the coolant reservoir, hoses and connections on your 2005 Sierra 3500 SLE are located and the steps needed to fix minor leaks.