Q: 2011 impala speedometer up & down while idling, car cuts off at low lidle

asked by on

Speedometer up & down when idling, car cuts off at low idle
My car has an automatic transmission.

I think you mean that the tachometer is going up and down, not the speedometer.

If the tachometer is going up and down and then the engine stalls, it’s an indication that the engine has a major vacuum leak or a defective idle air control valve. The vehicle does not have a common problem that causes the stalling so I would recommend having the engine idle issue checked to see if a vacuum line came off the engine, or the intake tube between the throttle body and mass air sensor is broken or came loose.

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. 2011 impala speedometer up & down while idling, car cuts off at low lidle

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: speedometer tacometer and cruise not working

Hello. If the speedometer, tachometer, and cruise control all suddenly stopped working then the first thing I would look at is the vehicle's fuses. It may be possible that the fuses related to the gauges or cluster has gone out...

Q: Car is stalling heavily, check engine light on, scanner shows P0101 MAF

Generally, the mass air flow sensor code will register either when it is dirty or when it is failing for other reasons such as lack of proper voltage or connection. The mass air flow sensor is a unit in the...

Q: I am getting a side detection, front camera service, and park assist service.

The side detection module and the radio receiver module has stopped working and is causing the warning lights to come on. The parts will need to be replaced in order for the camera to work correctly. If you need further...

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...