2005 Hyundai Santa Fe 3.5 L engine. When accelerating from a stop, the engine often surges, causing the car to jump forward rapidly. Happens perhaps one time out of 3, but incidence is increasing. Hard to control acceleration.

- Dayton, NV, USA

: the contact stated while driving 60 mph there is a severe vibration in the front end of the vehicle. The vehicle was taken to dealer, upon inspection the vibration was noticed however a repair could not be made. The manufacturer representative stated the harmonic balancer caused the problem.

- Vernon-Rockville, CT, USA

The contact complained about several problems. The first problem was the traction control, which allowed the front wheels to slip in the snow. The electronic accelerator cut in and out when the traction control was on. The dealer was contacted, and they suggested turning the traction control off. The contact tried the dealer's suggestion. And now, only one wheel will turn in the snow, the engine idled low, and the vehicle did not move forward. The second problem occurred on normal road conditions the vehicle lurched forward after a complete stop. The last problem was the check engine light which intermittently illuminated. The dealer replaced the dps valve sensor and reprogrammed the computer software. The contact had only driven the vehicle once since the repairs were completed, and did not notice any difference in the performance of the vehicle.

- Jefferson, NY, USA