GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Buick
🢒
2007
🢒
Allure
🢒
Engine
🢒
Engine Mechanical - 3.8L
🢒 Draining Fluids and Oil Filter Removal
Remove the oil drain plug.
Drain the engine oil.
Remove the oil filter.
Remove the knock sensor heat shield bolts and heat shield, if applicable.
Remove the knock sensor.
Drain the coolant.