Do you have to prime a rebuilt engine 1992 ford ranger 2.3 oil pump before starting?

Yes, it's generally a good idea to prime the oil pump of a rebuilt engine, including a 1992 Ford Ranger 2.3, before starting it for the first time. Priming helps ensure that oil circulates through the engine and lubricates critical components, preventing potential damage during initial startup. This can typically be done by using an oil priming tool or by cranking the engine without starting it to build oil pressure. Always check the oil level and ensure proper lubrication before starting the engine.