Q: Car is jerking, and Check Engine Light flashes

asked by on

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

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?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Car is jerking, and Check Engine Light flashes

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: 2002 Oldsmobile silhouette overheated My van overheated and died out. Checked under hood and one of the hoses came off. Reconnect

Hi Tony. Thanks for contacting us tonight. In most cases when a cooling hose comes off and sprays under the hood, electrical connections and sensors can be damaged. This could be the reason why your engine will not start. However,...

Q: Q: Code P0340

The P0340 problem code references a camshaft position sensor malfunction. The ability to restart the engine suggests it is failing versus has failed. There was an issue with this engine with the cam chain tensioner - which also affects cam...

Q: Van shakes/vibrates after turning on and when pressing gas and brake.

Diagnostic Trouble Codes in the OBD-II regime do not identify faulty parts nor are such codes sufficient, in and of themselves, to condemn specific parts. Although vehicle parts are always referred to in the code descriptions, all that means is...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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...
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.