Q: Why does my engine surge when the cruise control is on in my 2017 Kia Sportage

asked by on

When I have the Cruise Control on between 60-66 mph - the engine surges between 2300 and 3700 RPM ... While driving on flat level highway. At slower peed - Cruise set at 55mph - Engine surges between 1800 and 2500 RPM. This uses up a lot of fuel ... WHY is it doing this?

My car has 2000 miles.
My car has an automatic transmission.

Hello. This commonly occurs due to the fact that this engine is underpowered. The smaller engine in your vehicle has a problem maintaining speed which causes this fluctuation. I have seen a lot of complaints on this vehicle for this. In some cases having the dealer reprogram the computers can help this, but for the most part this is how the cruise works on your vehicle.

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. Why does my engine surge when the cruise control is on in my 2017 Kia Sportage

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: Q: How do you use the Speed Control system?

The Speed Control system on your car is the same as what you know as a Cruise Control system on other vehicles. It provides you with a way to control the speed of your car without having to keep your...

Q: I just replaced the battery in my car and as I was driving I stacted to lose power and the car died it cranks but won't start

The new battery that you bought should be fully re-charged. Confirm that the engine immobilizer system (security system) is not activated thus preventing the car from starting. Check for the characteristic, but momentary, whirring sound from the in-tank fuel pump...

Q: What are the symptoms of a bad coolant temperature sensor

The coolant temperature sensor on this engine sends a feed back voltage data to the computer. The computer uses this data to monitor the engine temperature from about minus 40 degrees F to over 300 degrees F. The coolant sensor...

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...
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...