Q: The car jerks and the lights flicker when idling.

asked by on

When idling the car jerks the rpm flutters between 1 and 0 and the headlights flicker

My car has 61000 miles.
My car has an automatic transmission.

Hi. This sounds like there is a problem with the battery or charging system. When a cars had low battery voltage or the charging system is not charging properly it will cause the car’s PCM to make the car run rough and effect the electrical system for the car. You may have a problem with both the battery and the alternator and both of these components should be tested. If you would like to have this checked for you, a certified professional from YourMechanic can come to your car’s location to diagnose the rough idling symptoms and move forward with repairs.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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
  1. Home
  2. Questions
  3. The car jerks and the lights flicker when idling.

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: Vehicle rumbles when driving also a very loud noise when driving over lane strips.

Hello, thank you for writing in. There are several issues that may cause these types of symptoms. The most common are improperly inflated or unbalanced tires. If you lost a weight off of the tires while driving, this would cause...

Q: engine rpm drops or stalls at stop light on abrupt braking.

Hi there. In many cases, the issue you're talking about is caused by an ignition timing problem; typically related to a damaged crankshaft position sensor or trouble within your ignition system such as the coil or distributor. This can be...

Q: toyot vitz 1.0

Hi there. Based on your question, it seems like you may have a low or rough idle when stopped in "D" or using the power window. There are a couple of components that could be the cause of your concern;...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
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...