Q: Hyundai Elantra 2017- RPM is going up and same time Speed is reducing on Highway

asked by on

While accelerating rpm is moving up and speed is reducing to 80, 60 ,40 from 100 mph on highway. However after shutting down and starting it again resolved the issue at that time but would like to know what can be the issue which might have cause this.

It was running smoothly for 300+ KM on that drive and all of a sudden i felt like accelerating is doing nothing but just increasing the RPM only and speed was reducing sharply and I had to stop the car in the middle of the highway.

My car has 10000 miles.
My car has an automatic transmission.

In most cases this issue is caused by a faulty speed sensor on the transmission or a ECU glitch that should be reviewed or repaired by a Hyundai dealership. Since your car is a new model, it might be best for you to take your car to the dealership so they can determine if it’s a computer issue; which should be covered under warranty.

Was this answer helpful?
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. Hyundai Elantra 2017- RPM is going up and same time Speed is reducing on Highway

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: Steering wheel won't turn

It is unclear if you are referring to a locked steering column versus a circumstance where there is loss of power assist or perhaps failure of a steering linkage that is causing the steering wheel to bind. Regardless of which...

Q: can you tell me how to do it in a 2018 90-series Volvo?

Hi Dan. Thanks for the question. Unfortunately, this is a built-in safety feature that can't be removed by a mechanic. You'll have to consult with Volvo to see if this is something they would be willing to attempt, as it's...

Q: Q: Car knocking

Hi there. These engines are known for having isolated rod bearing failures. In fact, there was a recall on 2011 and 2012 models for this issue. Rod bearings are used to hold and support the connecting rod to the crankshaft...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...