2007 Buick Lucerne Radiator Drain Plug Location. How to flush the coolant antifreeze in a 2007 Buick LaCrosse CXL 38L V6 How-to video for petcock radiator flush and burping on a 2007 Buick LaCrosse CXL 38L V6. Drain Coolant - Drain the coolant from the system.
Take off the radiator cap when engine is COOL. The radiator drain plug should be on the bottom of the radiator. The video above shows you where the coolant reservoir in your LaCrosse is located and how to add coolant.
The video above shows you where the coolant reservoir in your LaCrosse is located.
The video above shows you where the coolant reservoir in your LaCrosse is located and how to add coolant. It is a little messier but much faster to just remove the bottome hose if its cool. Usually at one of the corners. 4 people found this helpful.