Skip the auto shop - Our mechanics make house calls

Q: Oil sending unit

asked by on

Is the Oil sending unit the same thing as oil pressure switch? I've been told they are same thing but also have told they are 2 different parts. just a little confused.. On my 2000 taurus, the oil light flickers after parking or while idling. I dont see it come on while driving. Was told that was oil sending unit problem. But others said need to change oil pressure switch. So are those same or 2 different parts and which one would I need

Hey there. The two parts are different in their operation but performs the same function. The oil pressure sender is a variable resistor sensor that will increase and decrease resistance as the oil pressure goes up and down. This sensor will control a gauge to go up and down with the pressure. The oil pressure switch will be a closed or open circuit. The switch depending on calibration will close a circuit turning on the oil light on the dash when the oil pressure gets below a set amount or causing a gauge to go to a set reading when you have pressure and drop to nothing if it falls below set limit.

You may have one or the other type part on your engine but will not have both on your vehicle. You will need to have the oil pressure checked with a mechanical gauge to verify the pressures are within specifications and the replace the oil pressure sender or switch as necessary.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Sludge in engine, constantly low on oil

If you are losing that much oil, and there are no external leaks (leaks that are visible outside), your vehicle may be consuming the oil. Unfortunately this can be harder to diagnose than an external leak. The valve guides and...

Q: My audi's oil light came on lost power and a loud noise

Hi There, If your oil pressure falls below a specific level, the ECM (car's computer) will in some cases automatically shut the engine down or put the vehicle into a reduced power mode to avoid further damage to the engine....

Q: AC not working

The air conditioning system is complex as there are many parts working together. The most common issue with the system are leaks. If not repaired correctly, the system will degrade from the inside. Air or moisture in the system will...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...