Skip the auto shop - Our mechanics make house calls

Q: Car is jerking, and Check Engine Light flashes

asked by on

My car is jerking, and the Check Engine Light is flashing.

A: When the Check Engine Light is flashing, it...

When the Check Engine Light is flashing, it is telling you that the engine has a problem that may be causing damage to your catalytic converter assembly. The most likely problem is an engine misfiring from an ignition problem, such as a failed spark plug, plug wire, or coil problem. Some of these engines may also have problems with fuel injectors. I recommend having the Check Engine Light diagnosed by a certified mechanic, such as one from YourMechanic.

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: Silhouette

Many different parts can cause the vehicle to overheat. The most common would be the thermostat, radiator, water pump, air in the coolant, or a coolant leak. When a vehicle overheats at idle the usual suspect is the radiator fans....

Q: After repairs, Check Engine Light stays on

Hello. The flashing Check Engine Light is an indicator that there is a misfire in the engine that will damage the catalytic converter. This means that you should not drive the vehicle any more than absolutely necessary or the catalytic...

Q: Stripped water pump bolt/screw

Unfortunately, the stripped bolt in your water pump housing may very well have backed out causing the seal on the water pump gasket to be compromised resulting in the pump leaking coolant which may cause the motor to overheat. Depending...

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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...