Kia Sephia Acceleration problems by year

Tl*the contact owns a 1998 kia sephia. While driving approximately 35 mph the vehicle began to accelerate to 50 mph on its own. The driver stated that he had to press the brake pedal excessively in order to slow the vehicle down. The failure mileage was 160,000. The current mileage was 171,000. The vin was unavailable. The driver also stated that he notified the dealer and they told him that someone would contact him.

Vechical at idle went into high rpm and loss of brakes and lasted about 30 to 45 seconds

The vehicle brake and gas pedal are too close together. Consumer applied brakes, but their foot hit the gas pedal also, which caused an accident. Please provide more details. Ph

At 40mph when taking foot off accelerator vehicle would rattle. Cause unknown. Dealer notified. *Ak

Vehicle will maintain a speed of 35mph even when applying gas pedal, vehicle will suddenly surge up to 55mph. Dealer contacted.*Jb

Consumer states when accelerating the vehicle speed decreases instead of increasing. Replaced parts 4 times. Problem still occurs. Nlmvehicle has been repaired for wiring harness and sensor failure, the transmission is slipping, the transmission fluid is burnt and it is leaking fluid at the shift shaft (consumer was advised to replace transmission), the over drive light keeps flashing and the check engine light illuminates due to the hold unit not being applied. *Jg

Vehicle at 55 mph decelerated to 30 mph for about 15 seconds, and then sped up to over 55 mph before stalling out. Vehicle has been in the shop four times already, and there have been parts replaced,but problem still occurs.*Ak

When royal sold us the car no information was given to us that the car has 5 problems,with it.On the window was a sign saying it had cruise control it doesn't.Also the finance company that is the holder has been really unprofessional.I had the car for only 4months had insurance they kept telling me I didn't,they send a man out to check for the third time.I went to my car to give him the information,he called the office of a.B.C. Finance to let them know I had insurance, starting joking with someone on the other...

On mar 10 2001 consumer was ready to pull out into traffic with foot on brake vehicle suddenly accelerated, and hit another vehicle. Vehicle accelerated once before in 1999, but there was no accident.

Intermittently, engine will rev up and cannot go over 20 mph. Engine check light will come on. *Ak the cause for check the engine light was found to be computere failure. Also, transmission problem caused the vehicle to stall. *Yh

While driving about any mph vehicle will suddenly accelerate without a prior warning.Consumer will step on brakes pedal to stop acceleration, but vehicle will not stop, and concerned about fact of an accident.*Ak transmission failed. Brakes make noise due to rotor failure. Wiper blades failed. Battery failed. *Yh

While driving consumer experienced engine sticking and revving to a high rpm or behaves as if it going to stall. *Ak

Vehicle stalls at any speed. Consumer had brakes/rotors and idle control valve replaced. *Ak

Would be driving and vehicle stalled out. Then, would restart on its own. Cruise control remained unreliable. Brakes would not release cruise control when it was on. Took to dealership & mechanic replaced electrical wires. Also, exhaust system had holes in it & was leaking, and air conditioner was replaced due to compressor seizing up. *Ak

At various speeds overdrive light flashes off and loses power. Dealer has inspected vehicle several times, and have not been able to duplicate problem.*Ak after the 7th time dealer replaced the throttle sensor and the car is running fine. *Yh