Q: Check Engine Light blinking fast

asked by on

The Check Engine Light is blinking at a fast speed. The engine shakes when I am driving, and idling. Also, the car hesitates when starting from idle, and when going from a low speed to a higher speed.

You most likely have an engine misfire. The cause could be an ignition coil, spark plug, or plug boot problem, such as the valve cover leaking oil into the spark plug hole, shorting the coil out. I recommend that you have a mechanic, like the ones from YourMechanic, come by and to scan your car’s computer and diagnose the cause of your Check Engine Light.

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. Check Engine Light blinking fast

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: Engine swap ls400 Lexus 1990 to 1993 1UZ-fe

The engines themselves, that is the blocks and cylinder heads, are identical in both model years. So, they are a direct catalog interchange, have identical castings and so forth. However, the computers for the two years do NOT interchange. That...

Q: Massive hesitation between 1-2 shifting and nearly dies occassionally at stop.

Hi there. It seems that the EGR (Exhaust Gas Recirculation) Valve is stuck and not allowing the engine to run good causing the engine to hesitate, especially when shifting. Take the EGR off and clean it. Then put it back...

Q: Car stopped while I was driving it; Check engine light is also on.

Have your computer checked to see if there is any pending or stored codes. This will lead you to a location on the engine for troubleshooting. There are many symptoms that can contribute to a stalling and no start condition...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...
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...