Car jerking upon an acceleration?

Tiny
AWIED
  • MEMBER
  • 2015 CHEVROLET SPARK
  • 1.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 107,000 MILES
My car had recently started jerking upon an acceleration. My car had recently started jerking upon an acceleration with the engine light and traction control light turning on. I replaced the four spark plugs Which caused the lights to turn off. And cylinder one in ignition. I am still having issues with the car, jerking.
Friday, January 31st, 2025 AT 4:09 AM

5 Replies

Tiny
BORIS K
  • MECHANIC
  • 836 POSTS
Hello,

It sounds like you might have an issue with the ignition coil for cylinder 1.
Have you scanned the vehicle for possible fault codes?
If cylinder 1 is affected, you should get P0301.

How to scan:
https://www.2carpros.com/articles/can-scan-controller-area-network-easy

If a fault code set suggests swapping the coil with another cylinder, see if fault code moves with.

Also suggest inspecting that there is no oil leaking into the spark plug holes.

A guide:
https://www.2carpros.com/articles/engine-misfires-or-runs-rough
and
https://www.2carpros.com/articles/automotive-engine-misfire-code-p0300-causes-and-solutions

Cheers, Boris
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Friday, January 31st, 2025 AT 9:22 AM
Tiny
AWIED
  • MEMBER
  • 3 POSTS
We replaced the cylinder one ignition coil yesterday and it’s still jerking and bucking not as bad as it has been. The sake plugs has been changed or and doesn’t look like any oil is in there.
We plan on ordering the remaining ignition coils and reps of them all. Is there anything else that could be causing this issue?
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Friday, January 31st, 2025 AT 9:26 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 50,622 POSTS
How does the engine sound when cranking over? If the coil and spark plug don't fix it, it could be low compression, or the fuel injector is not working. I would remove the spark plug and see what it looks like, you can upload an image here so I can tell what is going on.
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Monday, February 3rd, 2025 AT 7:57 AM
Tiny
AWIED
  • MEMBER
  • 3 POSTS
We got the spark plus and ignition coils changed and it is still surging and bucking in a way what else could it be? Could replacing the MAF help with this.
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Friday, February 7th, 2025 AT 3:58 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 50,622 POSTS
Yep, that is not a misfire, this sounds like the acceleration pedal or throttle body is bad, let runs the codes to see if any codes are stored.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Here is how to change the sensor out which is my thought, thanks for the video, it helps. Also, has this car been modified? Check out the images (below). Please let us know what happens.
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Friday, February 7th, 2025 AT 6:06 PM

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