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What is the purpose of oil sending unit?

Updated: 10/27/2022
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14y ago

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Oil sending unit is really a misnomer. Although "it" is a unit, "it" does not send oil anywhere. What "IT" really is, is a pressure transducer. A pressure transducer is a device that "reads" or senses the hydraulic pressure of your engine's oil. That changes "it's" internal electrical resistance in proportion to that pressure. Let's say, the higher the pressure, the lower the resistance.

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