2017 Kia Sorento: shudder or vibration when accelerating

Filed Sep 1, 2026 · Engine · 100,000 miles · FL

The contact owns a 2017 Kia Sorento. The contact stated that the vehicle experienced excessive oil consumption. The vehicle was inspected several times; however, no oil leaks were found. The contact stated that while driving 30 MPH, the vehicle shuddered, and the check engine warning light illuminated and flashed on the instrument panel. The vehicle was taken to an independent mechanic, where it was determined that there was a hole in a valve and a piston was fractured. The vehicle was then towed to a dealer, where the failure was confirmed. The dealer determined that the engine needed to be replaced and the repair was not covered under warranty. The vehicle was not repaired due to the cost. The contact notified the manufacturer via telephone and was referred to the federal safety agency Hotline for assistance. The failure mileage was approximately 100,000.

Filed Mar 20, 2026 · Engine · TX

My 2017 Kia Sorento with approximately 175,000 miles experienced engine failure involving the engine and engine cooling system. The vehicle began showing symptoms including engine shudder, reduced acceleration, and a check engine light. These symptoms worsened and were diagnosed by a Kia dealership as internal engine damage, specifically a failure in cylinder 4. The dealership advised that the engine would require full replacement at an estimated cost of approximately $9,600. The failure creates a potential safety concern because the vehicle experiences loss of power during acceleration, which could increase the risk of an accident, especially when merging into traffic or driving at highway speeds. The issue was confirmed by an authorized Kia dealership, Community Kia, after performing diagnostic testing. The dealership completed multiple recall and service campaigns but determined that the engine was not eligible for replacement because a required diagnostic code associated with the knock sensor detection system did not appear. To my knowledge, there is no clear documentation confirming that the knock sensor detection system update was installed on the vehicle prior to the engine failure. If this system was not installed, the diagnostic code required to qualify for engine replacement may not have had the opportunity to trigger. Prior to the failure, the vehicle displayed warning symptoms including a check engine light, engine vibration, and loss of power. These symptoms appeared before the dealership inspection and diagnosis. This complaint is being submitted due to concern that the engine failure occurred despite known issues associated with this engine type, and that the failure creates a potential safety risk due to sudden loss of power while driving.

Filed Aug 4, 2024 · Engine · MA

We were driving on the highway and the engine started to shudder and the check engine light came on. We pulled off and had the car towed to a Kia dealership. Their report indicated that cylinder #3 had a burnt valve caused by excessive heat and there was scoring on the cylinder wall. They deemed it a total engine failure and quoted us a new engine for $9800!!!

Filed Jul 23, 2024 · Engine, Fuel system · 68,000 miles · VA

The contact owns a 2017 Kia Sorento. The contact stated while driving at an undisclosed speed, an audible message indicated that there was engine failure, and the infotainment screen displayed the option to send an engine failure report. The vehicle then shuddered and made an abnormal sound. The contact turned off and restarted the vehicle, but the abnormal sound persisted. The vehicle was shaking, and the contact detected an abnormal odor inside the vehicle. The contact parked and turned off the vehicle. Additionally, the headlights failed to illuminate while driving at night. The vehicle was towed to the dealer, where it was diagnosed with multiple cylinders misfire. The dealer determined that the spark plugs and headlights needed to be replaced, as well as an induction cleaning and oil change. The dealer replaced the spark plugs and headlights but discovered that the fuel pump was leaking fuel into the engine. The contact was informed that the fuel pump needed to be replaced. The contact declined to have the induction cleaning, the oil changed, or the fuel pump replaced. The vehicle was not repaired. The contact related the failure to the federal safety agency Campaign Number: 18V907000 (Fuel System, Gasoline) and Technical Service Bulletin: 073 (Ball Joint Replacement); however, the VIN was not included in the recall and the vehicle was not covered under the TSB. The manufacturer was made aware of the failure and a case was opened. The failure mileage was approximately 68,000.

Filed Feb 16, 2023 · Engine · 75,114 miles · WA

The contact owns a 2017 Kia Sorento. The contact stated while driving 65 MPH, the vehicle lost motive power and decelerated to 25-30 MPH. The check engine warning light was illuminated, and the vehicle shuddered significantly. The contact veered to the side of the road. The vehicle failed to restart and was towed to the residence. The vehicle was then towed to the dealer, where it was diagnosed that the cylinders #1 and #4 were misfiring. Additionally, the dealer stated that oil residue was found on the spark plugs, indicating that the engine was consuming an excessive amount of oil. The dealer diagnosed that the engine long block needed to be replaced. The dealer replaced the long block, the engine, and the cylinders. The vehicle was repaired. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was 75,114.

Filed Dec 20, 2022 · Engine · 77,571 miles · VA

The contact owns a 2017 Kia Sorento. The contact stated while driving at an undisclosed speed, the vehicle shuddered with the check engine warning light illuminated. The vehicle was taken to the dealer; however, the vehicle was not yet diagnosed. The vehicle was then towed to Kia at Williamsburg (3012 Richmond Rd B, Williamsburg, VA 23185) where it was diagnosed that the engine needed to be replaced; however, the replacement part was on backorder. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 77,571.