Skip the auto shop - Our mechanics make house calls

Q: Car is shaking violently

asked by on

The Service Engine light is flashing. The car shakes violently and slowly accelerates.

Hello there. Service Engine Light flashes is an indicator that there is a multiple cylinder misfire taking place. A misfire can easily cause poor acceleration and vehicle shakes. Common causes of misfires are faulty ignition modules, cracked manifolds, or aged spark plugs. If the misfire is bad enough or it is not addressed soon enough, it may damage the catalytic convertor. If you need further assistance, I recommend you have a mechanic, like one from YourMechanic, inspect the acceleration problem your vehicle has and replace any damaged parts.

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: SES light crack noise

Hello. The symptoms you describe are actually a common known occurrence among 135i models. The 135i uses a turbocharged engine that generates high boost pressures, which can sometimes cause boost hoses to come free due to excessive pressure. I would...

Q: Front end and steering wheel shaking - 2013 Infiniti JX35

Hello. It sounds like you have a tire or axle problem. If it is in the brakes, then you may feel it only when the brakes are applied. Have the front end checked to see if you have a separated...

Q: Battery change radio in LOCK mode

In order to get the radio code you need to follow these instructions step by step. Turn the ignition on but keep the radio off. Press the number 2 and 3 button and a three digit code is...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...
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...