2016 Kia Sorento: jerking or lurching

Filed Nov 4, 2026 · Engine, Fuel system · RI

Severe high-pressure fuel system failure and engine oil fuel dilution creating a fire hazard and engine seizure risk following a corporate engine replacement. On July 15, 2026, my 2016 Kia Sorento (2.4L GDI) received a corporate-covered engine block replacement due to rod bearing failure. On September 30, 2026 (2,332 miles later), the vehicle jerked violently while driving. Inspection revealed the engine oil was heavily diluted with gasoline due to an internal failure of the High-Pressure Fuel Pump (HPFP), creating a fire hazard. The HPFP was replaced out-of-pocket. Kia Corporate Case #26456059 is open regarding this safety issue. A severe safety hazard currently persists. Within 20 days and 176 miles of this fuel pump repair (totaling 2,512 miles on the new block), the vehicle exhibits severe drivability issues and the oil dipstick again smells heavily of gasoline. This fuel dilution compromises oil viscosity, threatening catastrophic engine seizure and creating an active fire hazard. Due to the severity of this fire risk, the Kia Executive Director of Customer Care intervened, ordering an emergency flatbed tow to a different authorized facility. An invoice audit revealed the dealer violated Kia repair protocols, factory TSBs, and federal safety guidelines. Kia’s factory TSB mandates that the high-pressure fuel pipe is a strict, single-use component that must be replaced upon pump removal; however, this part was completely omitted from my invoice, confirming it was dangerously reused. Reusing it introduces a volatile engine-bay fuel leak risk, mirroring the hazardous pattern in the federal safety agency Recall 18V‑907 (Kia Campaign SC172) regarding fuel lines mishandled during engine swaps. Furthermore, the dealer illegally charged retail fees for Service Campaign SC340 materials and withheld all diagnostic trouble codes (DTCs). I request a formal the federal safety agency investigation into unsafe recall compliance and systemic powertrain installation failures originating from the engine replacement.

Filed Sep 20, 2026 · Engine, Transmission · NY

Upon a catastrophic engine failure Tasca Kia replaced engine under Theta II settlement. I picked up my kia on 9/12. Engine is not running properly. It’s jerking and there is loud mechanical knocking. I don’t feel safe driving. I’ve contacted Kia corporate beginning 9/16 who contacted Tasca to arrange for tow and loaner. They said Tasca service mgr would contact soon to set up. They never did. I called corporate again later that day and after they called Tasca they were told service mgr went home for the day. As of this date Tasca Kia has not contacted me. I again called Kia corporate 9/17 asking to please escalate and allow me to use another service dept. The only other service location with loaner is a half hour away and I cannot afford another tow or another rental. I am stranded with a car that is not safe due to installation failure or another defective engine. No one from Kia will help in a reasonable time frame. I’m now told it can take up to 48 BUSINESS HOURS for any assistance. In the meantime I’m being forced to decide on whether to risk driving an unsafe vehicle to the service dept or to continue waiting for Kia to contact me.

Filed Aug 24, 2026 · Engine · GA

I went in a few months ago for a routine oil change. My car has had zero operating issues since I had the engine replaced around 5 years ago. They told me that I need to have a voluntary emissions update performed, so I gave consent. (The letter I received a few days later referred to it as "Voluntary Emissions Service Campaign.")On the way home, it seemed to drive rougher. I figured it was relearning some of the basic operating values. The following morning, it idled rough and then when I began driving, it would lurch forward irradically for the first one or two minutes of driving. I called the dealership and they insisted that it was coincidence. They said they will look at it, but there would be a charge. I have noticed a pattern since then. During normal driving, it is now smooth. It only happens on cold starts. Allowing it to idle elimiates the issue. However, it continues to idle rough on cold starts. If I drive it after it warms up, however, it does lurch forward. After this, it drives normal. Today I went in to the dealership for another oil change and asked about it. They continued to insist that it was impossible, but that I could leave it overnight and pay to have it looked at with the understanding that the two cannot be related. The safety issue is that it will literally make the car lurch forward when barely touching the gas. If this continues to worsen, it will cause a wreck. It has not been formally inspected, but I can provide dash cam footage.

Filed Jul 19, 2026 · Engine, Transmission · TX

I recently took my 2016 Kia Sorento L to the Kia dealership for the Emissions update recall. The next day when I started it up and put it in drive, it started jerking hard when I was trying to speed up (going from first to second gear). I had to stop and then slowly push the gas so it wouldn't jerk so hard, then it finally switched gears and was smooth. Ever since it's happening only at the first cold start up of the day, and have sluggish acceleration throughtout the day. No lights on or codes. I took back to dealership twice and they said they couldn't replicate it and so they aren't sure, but it definitely still does it (anyone riding with me notices before I even mention it).

Filed Jun 24, 2026 · Engine · OH

Took 2016 kia sorento april 22nd to kia services eastgate batavia oh 45103 to have all recalls fixed, few weeks later engine blew, kia services replaced engine then had to replace my battery because they had to for a month and my good battery was now a total loss, replaced my battery then my car started jerking and won't start unless in neutral, now they say my inhibitor switch needs replaced when I NEVER had any issues in the past with shifting and they wont fix it because they claim its not their fault

Filed May 21, 2026 · Transmission · IL

2016 Kia Sorento 2.4 mileage 75,500 (just out of warranty as of Jan 2026), vehicle is having transmission issue, hard shifting/jerking from1st gear to 2nd gear on first cold start-up of the day. No warning lamps on. Took into Kia to have the transmission serviced, cost $462, did not solve the issues. Kia paperwork upon completion of service paperwork stated "No further action required, Transmission operates to manufacturer's specifications". Safety issue: vehicle may stall during operation.

Filed Feb 13, 2026 · Transmission · TN

Gear shifter gets stuck. Car jerks back when trying to speed up

Filed Jul 2, 2025 · Electrical, Engine · CA

While I am driving it can be jerking anytime and also the slippery light come on the dashboard.Sometimes the engine light come on too.

Filed Feb 17, 2024 · Electrical, Engine · NY · 1 injury

We were driving on the [XXX] on [XXX] with a speed of around 70 miles per hour. We started to see a small amount of white smoke coming from under the hood and at the same time the truck started to slow down by itself unexpectedly and then started to jerk back and forth. No indicators showed up on the dashboard. The speed reduced quickly and hitting the gas pedal did nothing to accelerate our speed. The white smoke started to increase and it became difficult to see. We then saw the temperature gauge go all the way up to hot out of nowhere. There were vehicles all around us and the passengers in the car started to yell to try to get to the shoulder. We had to maneuver very quickly through traffic with the car continuing to jerk at a very slow speed, which was very scary and dangerous. We were finally able to slowly get over to the shoulder. We turned off the truck. When we opened the hood, white smoke was everywhere coming from the engine and the coolant in the plastic receptacle was bubbling. The coolant looked like it was about to explode and the driver got burned trying to remove the cap. There was significant heat coming from the engine. The coolant then drained out of the receptacle. When we tried to start the truck again it would not start. We spend hours trying to get a tow to a shop in NJ miles from where we live in NY. Several days later, the mechanic in NJ took a look at the car and he reported this week that the head gasket is blown and that we need a new engine. We plan to tow the truck back to NY to KIA where we have the car serviced normally to have it looked at. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Dec 6, 2023 · Driver assistance, Steering · MI

When driving down the road at any speed in a striaght line steering sticks requiring constant over correction. This is becoming a big problem at highway speeds as vehcile will jerk and on an icy road Im affaid I my lose control

Filed Aug 4, 2023 · Engine · TN

The contact owns a 2016 Kia Sorento. The contact stated that while driving at 70 MPH, the vehicle lost oil , the low oil and low fuel warning lights did not illuminate. The vehicle started to slow down and it made an abnormal noise and lost power. When she depressed the accelerator pedal, the vehicle would make a jerking motion. The contact was able to pull over to the shoulder and the vehicle was towed to a safe area. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was unknown.

Filed May 13, 2022 · Engine, Fuel system · IL

The car engine was using excessive amounts of oil at 80,000 miles. The dealer in an attempt to save the engine did a major flush. Several components failed within 10,000 miles of that service. Spark plugs, fuel pump and catalytic converter. The car would lurch forward. It stalled at 65 mph! We were scared it would start on fire or stall again. The first time it happened there were no warning lights. After the spark plugs and fuel pump were replaced there was an engine warning light on. The dealer did check it out and the latest test revealed a hole in the catalytic converter. They could not guarantee that that was the only issue. We chose not to have any additional repairs and sold the car at a loss because we were scared to have our grandkids in the car.