Q: Check engine and oil light on

asked by on February 11, 2017

Changed oil about a week ago. Did not change filter. Check engine light came on yesterday. Oil light coming on and off now

My car has 243000 miles.
My car has an automatic transmission.

If your vehicle’s check engine light illuminates, there is a malfunction that should be diagnosed and repaired. If you request a check engine light diagnostic, a certified mechanic from YourMechanic would use a code scanner to retrieve diagnostic trouble code(s) from your car’s PCM and then use those codes as a guide to diagnosing and repairing the fault.


You might consider changing the engine oil filter just in case that has any relation to the oil pressure light coming on. Check to make sure you used the correct viscosity oil for your engine when you changed the oil and, of course, check the level of oil on the dipstick. If the oil pressure warning light has come on, you can first check to see if there is a malfunction in the warning light circuit or oil pressure sensor. To do that, the warning light circuit can be tested and the actual engine oil pressure can be verified, too, using an external pressure gauge. Measurement of the pressure will tell you if there is an actual lack of pressure versus a malfunction in the oil pressure sensor and warning light system. If pressure does read low, there are multiple causes of that and a blockage of the oil pick up screen and/or oil pump failure are among the multiple causes. If you would like YourMechanic to resolve this, whatever the cause of the light illuminating may turn out to be, please simply request an oil pressure inspection/diagnostic and the responding certified mechanic will let you know why the light is on and what the required repairs will be. If you have further questions or concerns, do not hesitate to re-contact YourMechanic.

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

What others are asking

Camshaft timing - 2000 Audi A6 V6

I am working on this

Engine noise at idling, Check Engine Light on

Hello. It is common for these cars to have problems with the camshaft gears making noise and causing the Engine Light to come on. If the problem persists, then damage to the motor is possible. It would be a good...

Put a brand new alternator in it and new battery and it still does not want to charge the battery is this

Inspect fuse number 11 and 30 in the fuse box. Check the grey fuse link near the starter. If both of these are good then check fuse 19. In fact, its best to check all the fuses for any blown...

05 Acura tl 6 spd will not accelerate

First see if engine will rev up out of gear to see f problem is engine throttle or you have a slipping transmission clutch. If engine runs good and revs normally then have the transmission clutch checked for needing replacement....

Engine light flashing. Car not getting speed and putting out

The Check Engine Light is flashing to tell you that you should get to a safe stopping point so you do not damage the engine or the catalyst of the car. The Check Engine Light does not tell you what...

The vehicle rides rough and there is a loss of power

Your vehicle has only 69,000 miles and so you want to make sure that the ball joint(s) has actually failed. So, best to either get a second opinion and have the Mechanic demonstrate the failure to you so you can...

Why does my Mini Cooper rev and shakes when I am stopped at a red light

Hello. This can be caused by a number of things. Since the check engine light is on you more than likely have a misfire or a faulty sensor. I would usually start by scanning the computer for codes to see...

Vehicle Not Starting/Turning Over

Hi there. Regardless of what is failing in the starting circuit, with proper diagnoses, the problem should not run thousands of dollars to repair. It could be, as simple as, a faulty starter relay. The difficult part is, the problem...

the oil pan drain plug head is rounded off to remove the plug are the threads clockwise or counter clouckwise?

To remove the drain plug, turn the plug counter-clockwise. You may need to use a "bolt-out" type socket to grip what remains of the head. In the event that the internal (in pan) threads are damaged and you need a...

Related articles

P2601 OBD-II Trouble Code: Coolant Pump Control Circuit Range/Performance
P2601 P2601 code definition The P2601 code is a general OBD-II diagnostic trouble code (DTC) that indicates a fault with the coolant pump control circuit range/performance. What the P2601 code means The coolant pump is an electronically controlled auxiliary...
P0246 OBD-II Trouble Code: Turbocharger Wastegate Solenoid High
P0246 code means the solenoid circuit reading does not fall within the recommended specifications due to a damaged solenoid, or faulty wiring.
P2289 OBD-II Trouble Code: Injector Control Press Too High-Engine Off
P2289 P2289 code definition Injector Control Press Too High-Engine Off What the P2289 code means P2289 is an OBD-II code for the engine control module (ECM) detecting the injector control pressure (ICP) sensor is registering a fuel pressure that is...