How do you replace an oil pump in 1996 Ford Aspire?

To replace the oil pump on a 1996 Ford Aspire, first disconnect the negative battery cable and drain the engine oil. Remove the oil pan by unbolting it and gently prying it loose; you may need to remove the exhaust and other components for access. Once the oil pan is off, unbolt the old oil pump from the engine block, install the new pump with a new gasket, and reassemble the oil pan and other components. Finally, refill the engine with oil, reconnect the battery, and check for leaks.