Q: Rough idling, shaking, sluggish engine

asked by on

When I start my car, it shakes and the check engine light flashes on the dash. I restart the car and everything is fine. The next time I start it up, the same thing happens. The car idles roughly. The check engine light goes on. The engine seems to be losing power during driving as well. It happens in the second gear. Also, the dashboard shows 12 volts on average with the gauge moving around. Do you have any idea what could be the problem? Thank you in advance.

Hello. It sounds like there may be a misfiring condition in multiple cylinders. A misfire means that one or more of the spark plugs in the vehicle’s engine are not firing properly. This will cause the engine to run rough and lose power. It will be necessary to have the check engine light and misfire inspected, as well as the battery and charging system, by a certified technician, 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. Rough idling, shaking, sluggish engine

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: Q: Car stalling.

You have definitely covered some of the obvious possibilities. Most of the time the ICM would fix this problem. There are a few other things that can do this. Bad connections at connectors and the PCM to start. But I...

Q: abs light stays on and transmission shifts hard and idles eratically

Hey there. The ABS light and transmission shift problems may be from the speed sensor in the rear end is not reading correctly or the rear end has worn carrier bearings. You should have the ABS tested and codes diagnosed....

Q: Idle Problem & Exhaust sputtering noises

With the information that you have provided, I would surmise that you are describing the signs of an engine misfire. Pulling the diagnostic codes with a code reader will probably show codes that relate to a misfire, and could help...

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...
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...