Skip the auto shop - Our mechanics make house calls

Q: jolting bad and stalling - 2009 Kia Sedona

asked by on

I just changed the spark plugs yesterday and today trying to leave for work when I started up the vehicle i would jolt really bad and eventually shut down/stall. After 10 minutes I finally got it on the road but it was still jolting. When I would slow down it would stall, then at every stop sign it would take me a few minutes to get it going again, after stalling over and over.

My car has 142000 miles.
My car has an automatic transmission.

Hi there. There are a variety of possibilities that could cause this. However, there are a couple of sensors the car has that are most commonly known for causing this kind of problem. A faulty mass air flow sensor is a sensor that regulates the amount of air that flows into the car’s engine allowing it to mix properly with the fuel just before being injected into the motor.

When this is not working correctly, it causes misinformation to be relayed to the fuel injection system in your car resulting in the erratic jolting you are describing. A bad throttle position sensor can also cause the same type of response. This is a sensor that monitors the position of your foot on the gas pedal which then relays this information to your car’s computer as well to tell the fuel injection system how much fuel to give the motor. If you need further help with this, a certified technician from YourMechanic can come to your car’s location to diagnose the stalling issue and assist with proper repairs.

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: engine fires, but rocks violently and will stall after a few minutes of running

i am working on this

Q: Sometimes my car has issues starting

Hello there, a car that starts only after it sits overnight is a common fault. The fact that it starts after it sits for a long while tells me one or more component is on its way to failing but...

Q: SUV will not accelerate sporadically and has no power

Hi there: To be completely honest, there could be multiple issues with your 2008 Mercedes-Benz that are causing the symptoms you're describing, ranging from something simple like a crankshaft position sensor to the throttle position sensor or complex issues with...

Related articles

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...
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...
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...