2007 Hyundai Sonata: jerking or lurching

Filed Jul 11, 2019 · Brakes, Transmission · 70,000 miles · PA

The vehicle would randomly accelerated without warning. During the failure, the rpms would increase and the vehicle would lunge forward. The failure occurred on multiple occasions. The contact would have to apply extra force to the brake pedal to prevent the vehicle from accelerating around 70000 on car. It has a jerk when I am accelerating until I get to a faster speed. But it doesn't accelerate on its own.. I was string at a lightor whenever I go to stop it accelerates on its own. Sometimes while I'm driving it seems to pick up speed on its own as well

Filed Jul 5, 2016 · Driver assistance, Steering · CA · fire

"tanaka recall " this has happened on multiple, intermittent occasions. When decelerating, the steering wheel "sticks" in the straight-ahead position. It becomes very difficult to turn & navigate a highway exit that curves. You have to fight with the wheel and pull hard to make it turn, at which point it feels like the wheel "unlocks" and turns freely again. This is truly a safety concern. I have taken it for service several times , and they did not find anything wrong (now that I see others have had this issue, I plan on scheduling service again). I have had to replace upper control arms on both sides in front due to the squirting sound evertime I go over hole or speed bump and the passenger side is slowly hanging. I too had issues with the ESC and jerking and pulling not long after I purchased the car, but those issues weren't addressed or fixed by the mechanic. (after many trips to the shop & several accidents later) my hyundai sonata 2007 needs help.

Filed Mar 26, 2015 · Steering, Visibility · OH

This has happened on multiple, intermittent occasions. When decelerating while exiting a highway, the steering wheel "sticks" in the straight-ahead position. It becomes very difficult to turn & navigate a highway exit that curves. You have to fight with the wheel and pull hard to make it turn, at which point it feels like the wheel "unlocks" and turns freely again. This is truly a safety concern. I have only taken for service once, and they did not find anything wrong (now that I see others have had this issue, I plan on scheduling service again). I have had to replace my driver's side visor due to the spring breaking and the passenger side is slowly hanging and will probably break too. I too had issues with the ESC and jerking and pulling not long after I purchased the car, but those issues were addressed (after many trips to the shop & several highway scares) and finally repaired.

Filed Oct 3, 2014 · Electrical · 98,000 miles · OR

I bought this car used last september. When the weather turned very warm one day I put in the key to start the car, and the key wouldn't start. I looked in the book that came with the car, and it said to jiggle the steering wheel and then turn the key. This happened in my garage. I called the dealer where I bought the car. He actually came to my house and we both tried everything and we couldn't get the key to turn. I kept at it. I dis-engaged it out of park into neutral and tried moving the car. After what seemed like an hours or two, I tried it again, and finally the key turned. I called hyundai in medford, oregon, and they said they didn't have any idea as to why the key wouldn't turn. Great service!! Now it seems whenever it gets really hot it does this often. I have gotten stranded so many time and have had others help me. My insurance towing service guy called me after I got stuck at the grocery market, and explained this was a security lock, and to make sure I had the wheels turned straight, and to just jerk the steering wheel left, and the key should un-lock. I am beginning to think this may be why the prior owner sold this car. I am 69 years old, and I am afraid at some point I will be off with no-one around to help me. Is this a common problem with this model? When I researched this on line, it seems to be a glitch with this 2007 model. Please help me with a solution. I can not afford to buy another car. I am on a fixed income. Thank you.

Filed Aug 4, 2014 · Brakes · 35,584 miles · MD · crash

I was parking the car (going about 5 MPH ) at the food market , had coasted into the space and was using the brake ready to totally stop at the cement stop block..suddenly the motor sounded like a racecar and the car lurched forward and up over the cement stop block into the concrete wall /column where it stopped ! I was so fortunate to be in that parking space in front of the wall or I would have gone straight into the glass wall of the market !!several people ran out of the market to help me out of the car.there was steam coming from under the hood and some liquid was draining under the front of the car..someone decided to call the fire dept..because they thought it was gasoline.. Someone else suggested that I turn off the motor because it was still running..I could not shift the car so I could not get the key out. The gear shift was stuck and would not work . We decided to leave it alone until the tow truck arrived .I was really reluctant to do too much because it was on a slight slant and I thought it might start moving again.noone else was in the car. The skin on my knee was scraped and my knee felt a little sore...no major injuries.just very shaken!!.the car was towed to a repair shop and my insurance company will schedule an inspector for the repair order. I am in no hurry to get it back. I'm feeling very nervous about driving it again....affected parts? ( item on this form) I can see that the hood and the front bumper are damaged..fluid and steam came from somewhere under the hood so maybe the radiator or hoses are also damaged.I am not a mechanic and I don't have the report yet but something else is going on if the car makes a racing car noise and then moves forward quickly. The mileage is only 35,584..a 2007 hyundai sonata..I have pictures if you need them.

Filed Aug 19, 2013 · Transmission · 35,000 miles · AL

Car began "jerking" motion while doing 45 MPH to 50 MPH. Dealer says they are unable to locate problem as there is no code. Transmission fluid was changed and temporarily "fixed" the issue. Two different dealers have looked at the car and have both said without a code, they can't find anything. The tach does not fluctuate when the problem occurs. After 50 MPH, the jerking motion stops. This is a 4 cyl, 2.4 liter engine.

Filed Aug 19, 2013 · Transmission · 35,000 miles · AL

Car began "jerking" motion while doing 45 MPH to 50 MPH. Dealer says they are unable to locate problem as there is no code. Transmission fluid was changed and temporarily "fixed" the issue. Two different dealers have looked at the car and have both said without a code, they can't find anything. The tach does not fluctuate when the problem occurs. After 50 MPH, the jerking motion stops. This is a 4 cyl, 2.4 liter engine.

Filed Jan 11, 2011 · Acceleration, Brakes · 25,728 miles · NY · crash

While operating my 2007 hyundai sonata, I experienced sudden unintended acceleration (sua) which resulted in an accident of moderate property damage and no injuries. I had pulled to a curbside to park, and had stopped approximately 8 feet behind a large SUV. As I began to raise my foot off the gas pedal, the engine started to accelerate. I applied the brakes which initially began to hold the car which was starting to move forward, but as the acceleration increased, the brakes became unable to hold the car, and it lurched forward and struck the unoccupied SUV. Even though my car only accelerated and traveled 8 feet, the impact was strong enough to cause $6000 worth of damage (actual allowance by insurance company). I've since found out that the hydraulic breaking system and the electronic throttling system are inversely connected to the vacuum generated by the car's engine which means that braking power decreases as throttle increases. Cause of the sua has not been determined. After I got the car repaired, I took it to hyundai and they were very conciliatory but after checking it for an hour, state that they were unable to recreate the condition and that they did a complete safety check and scanned all the electronic systems to no avail. I had never experienced this condition in the past in this vehicle, however, I had experienced it 3 times in my wife's 2003 hyundai sante fe. In those situations, there was not anything directly in front of me, and I was able to shift into neutral and regain control of the vehicle.

Filed Mar 6, 2008 · Acceleration · 4,950 miles · GA

On 3/3/08 I was returning home from picking up my daughter from school. I made a left hand turn onto jones chapel road and when I went to accelerate the car full throttled on it's own. I tried mashing the brakes and it only slowed my car by 10 miles an hour or so. I finally put the car in neutral(the engine continued to rev very high) and shut my car off. I had roadside tow it and it is still at the dealership. They have been unable to duplicate the problem. There was nothing in the floor board and my car floor mat is secured by a peg. When the car took off it literally jerked mine and my daughter's heads back.