GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Buick
🢒
1998
🢒
Park Avenue
🢒
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 sensors.
Drain the coolant.