Skip the auto shop - Our mechanics make house calls

Q: Car idling rough

asked by on

The car is idling rough. It shakes really bad, sputters, and then shuts off.

A rough idle indicates that your engine is misfiring. There are many reasons why a car would misfire. It could be a bad ignition coil or spark plug. It could also be a bad control module or wiring issue. If any of these problems got bad enough it is possible that eventually the car would shut off. I would have a qualified technician inspect your vehicle’s components and diagnose your car’s rough idle.

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

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: Catalytic converter going bad. Can I prolong its life?

Unfortunately, there is not much that can be done to prolong the life of the catalytic converter as they are very expensive to manufacture, thus the high cost of replacement. In order for the converter to work effectively, there are...

Q: Engine noise and has no power. It spits and sputters.

Hi there. Sounds like the fuel pump is not working in your vehicle. Check the fuel pump relay and see if it is clicking on when the key is turned on. If the relay is working, then turn the key...

Q: Idle at 250 rpm

Most engines would not be able to stay running if the RPM's are at 250 RPM's. You may have another problem that is causing the gauge to not read correctly. If the vehicle brake is held while you push the...

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...
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...