Q: My car does a little jerk between 30 and 40 mph then it goes away when I speed up? There are no engine lights on or anything so wh

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No engine lights on but it does this small jerk between 30 to 40 mph just jerks one time but after I speed up it doesn't do it and it does it every once in a while not every time I drive it.

My car has 67000 miles.
My car has an automatic transmission.

The jerking could be due to the turbocharger (if equipped) or it could be a transmission shift issue. If turbocharger related, it is probably "normal". If transmission related, some tests would have to be performed to determine the cause and the possibility of ECU/TCM software updates should be considered. To distinguish between the two broad possibilities (engine, if turbocharger equipped, versus transmission) requires that a mechanic drive the vehicle. If you desire a diagnostic, please schedule via YourMechanic’s automatic transmission shift diagnostic service request page. If you have further questions or concerns, do not hesitate to re-contact YourMechanic because we want you to make the most of your repair dollars and help you to get the best possible results.

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