Skip the auto shop - Our mechanics make house calls

Q: Oil pressure light

asked by on

I'm driving and my cars oil light comes on intermittently , I'm thinking I have enough oil by having added two quarts on Sunday . Then it goes off for a day and the light comes on again . Maybe that I need an oil change , don't know what it is maybe even sensor malfunction just a guess .

My car has 1440000 miles.
My car's transmission is unknown to me.

Hello There, The oil pressure light will usually come on when a few things could be happening. Either the motor is in fact low on oil, the oil pump could be failing or the oil pressure sending unit is not working properly and may be producing a faulty reading. If the engine is in fact low on oil, you may notice the temperature gauge reading above normal temperatures as a result of the lack of sufficient oil in the motor. I would recommend checking the actual oil level in the motor by using the dipstick. Be sure the oil level reaches the "full" mark. If this registers as "full" then you likely have a faulty oil pressure sending unit. Many vehicles also have a safety feature built into the vehicle’s computer system which will shut the engine down completely or trigger a “safe mode” of some kind which will drastically limit the vehicle’s engine power to avoid further engine damage until the oil pressure problem is corrected. I would recommend having an expert from YourMechanic come to your location to take a look at your vehicle to determine what may be causing your low oil pressure light to come on.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: I have a 2013 Hyundai Elantra with keyless entry/start. Lately when I push the ignition button to start my car the horn honks.

Hi there. Most of the time this occurs when the key fob battery gets low. If the battery is replaced then it should be fine. If the battery does not help then there may be a programming issue within the...

Q: My Honda Odyssey 2006 has the battery light on while running. I believe there is a slight smell as well.

The battery light is telling you that there is a malfunction in the charging system. The smell might be fluid leak, or if there is an electrical problem you might be smelling burning insulation. When the charging system is not...

Q: Timing belt/water pump replacement

Hello, thanks for writing in about your 2002 Hyundai Elantra. It is possible that the second timing mark was used by a previous technician to indicate the proper location of the crank. It is also possible that you have the...

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...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.