Skip the auto shop - Our mechanics make house calls

Q: After oil change, engine stutters, warning lights on

asked by on

Just yesterday I got an oil change. Since then, the EPC light is blinking on/off and the engine is stuttering. It continually feels like it’s going to quit. It was a local corner-type kind of oil-change shop. Do you think they might have used the wrong kind of oil during the oil change yesterday or is this an unrelated matter?

Hello. EPC stands for electronic power control, and the light is seen when there is a fault with the throttle body, traction control, throttle pedal, or cruise control systems. It is flashing because the car’s computer can not compensate for whatever fault is present. Many different things can cause the EPC light to come on but the most common would be an issue with the mass air flow sensor, throttle or pedal sensor, or a traction control. It is fairly unlikely that the oil change and the EPC light are related.

I recommend having your vehicle scanned for any error codes. A qualified technician will scan the engine control unit for what code is present and from there be able to diagnose the fault and perform any repairs required. A certified mobile mechanic from YourMechanic can provide this inspection at your home or office.

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: The eml light turned on and then the car decelerated. Just wanted to know what it means and if I require a mechanic

EML refers to the electronic throttle control system. It's a system integrated into the engine and body controllers to select the proper the throttle position for whatever the driver is demanding. There are several sensors and actuators in play and...

Q: Possible damage to engine due to previous owners error

This is the first time in my 30 plus years as a master mechanic I have ever heard of someone flushing the engine oil with a garden hose. Are you sure the previous owner did not open the radiator drain...

Q: My headlights are turned on as soon as I switch on the engine.

Hi there. The headlight switch may have fused the contacts inside the switch to the on position making the lights come on all the time. Try turning the ignition switch to the auxiliary position and see if the lights still...

Related articles

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...
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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...