If your engine is running than you cannot remove an oil pan, because the crank shaft is turning & oil will go all over.
To remove the oil pan all you have to do is drain the oil and pull the oil pan bolts. Then you have to move it so you can get at the oil pickup tube bolts. You get those out then you can just let that fall down on top of the gasket which will then come off with oil pan. I had a hard time with this. I still had to remove the two bottom bolts, On the front motor mount and lift the motor 4-6 in.
You need to unscrew the screws and remove the lid to remove the oil pan on a 2001 Ford Mustang with 3.8 motor.
PULL THE MOTOR OUT
You can remove the oil pan from your 2002 Chevy Cavalier, without removing the motor. The oil pan is held in place with retaining bolts.
they say you need to pull the motor to change the oil pan but if you just loosen the motor mounts and jack the motor up a few inches you can get to the oil pan bolts, remove them and lower the oil pan.
Remove the Suzuki 450 oil pan plug. Allow the oil to drain out of the oil pan. Replace the plug to the oil pan. Fill the motor with oil.
lift engine by removung the motor mount bolts. jack up engine and remove oil pan bolts
In order to replace the oil pan on the Crown Victoria you have to remove the engine from the car. After the motor has been removed then you remove the bolts holding on the oil pan and it can be replaced.
Drain the engine oil. Remove the pan bolts. The engine may have to be unbolted from the motor mounts and lifted slightly to remove the pan. Pull the pan out, then install the new pan and gasket.
Place a drip pan below the oil pan and oil filter. Remove the oil pan plug. Drain the oil into the oil pan. Replace the plug to the oil pan. Turn the oil filter to the left, to remove. Fill the oil filter with oil and replace it to its original position. Fill the motor with oil.
Drain oil. remove oil filter and replace with new. remove oil pan. Remove old gasket make sure the area at which the gasket seats are cleaned well and install new gasket with oil pan and fill the motor up with the appropriate type and amount of motor oil.
you remove the oil pan, clean the gasket surfaces, install the new gasket and the oil pan.