Which of the following can result from a malfunctioning oil pump?

A malfunctioning oil pump can lead to insufficient lubrication within the engine. The oil pump is crucial for circulating engine oil throughout various components, ensuring that moving parts receive the necessary lubrication to reduce friction and wear. If the oil pump fails or does not function correctly, the oil may not reach critical areas where it is needed, resulting in inadequate lubrication. This can cause increased friction, overheating, and potentially severe engine damage.

In this context, other possible outcomes of an oil pump malfunction can include low oil pressure or inefficient oil flow, but the most direct result of an inadequate pumping mechanism is the insufficient lubrication that can jeopardize engine health. Proper lubrication is essential for engine performance and longevity, making this the critical consequence of a malfunctioning oil pump.