A vehicle's oil pressure warning light is on. Technician A says that the pressure sending unit should be replaced and the vehicle re-checked. Technician B says that a mechanical oil pressure gauge should be used to check the oil pressure before replacing the sending unit. Which technician is correct?

Question

Quizplus · Accepted Answer

Technician B is correct because it is important to first verify if the oil pressure issue is genuine by using a mechanical gauge before replacing parts. This approach helps in accurately diagnosing the problem without unnecessary replacements.

A Vehicle's Oil Pressure Warning Light Is On