Skip the auto shop - Our mechanics make house calls

Symptoms of a Bad or Failing Oil Pressure Sensor

oil pressure sensor

Bad or Failing Oil Pressure Sensor Inspection

by a top-rated mechanic at your home or office

Without the proper amount of oil, your engine will sustain major damage. Multiple systems in your car are designed to maintain the correct engine oil level and pressure. In order for the engine computer to regulate the flow of oil, the oil pressure sensor needs to work correctly. The oil pressure sensor is hooked directly to the oil pressure gauge on your instrument cluster. When lower than normal oil pressure is detected, the pressure sensor will make the gauge in the car reflect this change. An Oil Pressure Warning Light will often accompany oil pressure sensor faults.

Like any other sensor or switch in your engine, eventually the oil pressure sensor will have repair issues that need to be addressed. Failing to recognize the symptoms of a bad oil pressure sensor can lead to low oil levels, which can be very problematic for your engine. These symptoms include:

HAVE SYMPTOMS OF CAR TROUBLE?
Get an $80 diagnostic
by a top-rated mechanic at your home or office.

Get a quote · Book an Appointment · Our expert mechanics come to you.

1. The Oil Pressure Light is on

The oil pressure gauge inside your car will give you a good indication as to the condition of the engine’s oil levels. If the Low Oil Light comes on, but you check the oil in the engine and it's at a good level, then a faulty oil pressure sensor may be to blame. When this sensor goes bad, it will start to give inaccurate readings. After the readings fall out of specification, a warning light is set. The faster this sensor can be replaced, the less stress you will have regarding the oil levels in your vehicle.

2. The Oil Pressure Light blinks constantly

In some instances, the Low Oil Light will blink on and off when the oil pressure sensor is going out. This can be quite alarming to a driver because the damage that lower than normal oil levels can cause to an engine. Constantly checking can become very time consuming and stressful but is needed to maintain proper oil levels. Rather than having to deal with this, you should get the oil pressure sensor replaced as soon as possible.

HAVE SYMPTOMS OF CAR TROUBLE?
Get your car fixed at your home or office.

Get a quote · Book an Appointment · Our expert mechanics come to you.

3. Oil pressure gauge is at zero

Most older cars have an actual mechanical gauge that gives the driver a readout on the oil pressure. If this gauge is reading zero even when oil levels are where they need to be, then the oil pressure sensor is probably to blame. Modern cars that have a oil pressure gauge use an electronic signal. The gauge may sit at zero, full, or have erratic readings when the oil pressure sensor is failing.

YourMechanic makes getting repairs to your oil pressure sensor easy by coming to your location to diagnose or fix issues. You can book a service online 24/7. YourMechanic’s qualified Technicians are also available for any questions that may arise.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Still not sure about your car's issue?
Diagnose your car
What kind of issue are you experiencing?
Brakes are squeaking
Car is not starting
Car is overheating
Car is shaking (vibrating)
Fluids are leaking
Heating and A/C
Smoke or steam is coming out of the car
Warning light is on
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

How to Buy Fuel Treatments
Adding a fuel additive to your gas tank when you fill up is one way to clean vital engine parts of deposits, improve the performance of your engine,...
P2159 OBD-II Trouble Code: Vehicle Speed Sensor B Range/Performance
Diagnostic Trouble Code (DTC): P2159 P2159 code definition Vehicle Speed Sensor B Range/Performance Related Trouble Codes: P2158: Vehicle Speed Sensor B P2160: Vehicle Speed Sensor B Circuit Low P2161:...
Auto Safety Tips
Driving is more than a way to get from point A to point B. Owning and driving a car can also be a highly enjoyable experience. Whether a person is driving...


Related questions

Q: Oil sending unit

This suggests that the oil pressure sending unit may possibly have a faulty connection resulting in inaccurate readings. If the oil pressure is correct when checked manually, the only other possibility is the oil pressure sending unit or potentially the...

Q: Out of the blue when I started car, the engine and gas was fine when cranked but the car did not fully start. The engine oil pressure light came on.

Hi there. Check the engine oil level. If the oil level is low, then top off and recheck the symptoms. If the engine oil is full and the oil pressure light is lit up on the dash, then either the...

Q: The following dashboard lights came up at the same time (ABS, TSC OFF, TSC/DSC).

Hello. If all of those warning lights have suddenly come on then there is likely some sort of issue with the vehicle's ABS and stability control systems. Common causes for these lights are issues with the vehicle's wheel speed sensors...