Skip the auto shop - Our mechanics make house calls

Q: Check engine light on & oil pressure dropped

asked by on

The check engine light came on while I was driving to work. Also, the oil pressure gauge dropped a little. So I checked the oil level and sure enough, it was a bit low - thus I added oil. While driving home, the light stayed on and the oil pressure started to drop again. Please tell me what is the basic cause of this and what should I do?

A: Hello. It is possible that you are getting ...

Hello. It is possible that you are getting a false reading as a result of a faulty oil pressure switch. It is also possible that there is an oil leak and that’s what is causing the oil pressure to drop. If this is the problem, you should be able to see oil on the ground. Another possibility is that the oil pump is faulty and causing a low oil pressure condition. I would recommend that you have a certified technician, like one from YourMechanic, complete an inspection in order to pinpoint why your Check Engine Light is on as well as the cause to your oil pressure problem.

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: Fuel gauge always reads Full tank

Hello. There is a fuel level gauge on the fuel pump and it reads the amount of gas that is in the fuel tank. It sounds like this gauge has broken on your fuel pump. The gauge cannot be repaired...

Q: My truck accelerates unintentionally when pulling into parking spaces or garages. This has happened twice.

Hi, thanks for writing in. Many different faults will cause unintended acceleration. The most likely are a floor mat stuck under the gas pedal, a stuck throttle body, or a throttle body motor failure. This is a serious safety issue...

Q: Car & lock symbol

Hello. Thank you for writing in. The vehicle may be experiencing one of several issues. The lock and car symbol and warning light you are seeing is saying that the anti-theft system has been activated. Your owner's manual should give...

Related articles

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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
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.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.