How do you change an oil pump on a 2.4L ENGINE?

To change the oil pump on a 2.4L engine, first ensure the engine is cool and disconnect the battery. Drain the engine oil and remove any components obstructing access to the oil pump, such as the oil pan. Unbolt the old oil pump from its mounting location, clean the mating surfaces, and install the new pump with a new gasket. Finally, reassemble the components, refill with oil, and reconnect the battery before starting the engine to check for leaks.