general problems of the 2005 Hyundai Tucson

This car accelerates while unattended. Most likely due to an ecm malfunction and unable to properly respond/send signals to the motor. On 4 occasions, the car has accelerated, even if in park. It will go 25mph on its own and to stop I had to put it in neutral. I’ve seen that my car isn’t the only one experiencing this. Considering it’s an ecm issue there should be a recall because that is not a part you change during the life of a car.

The contact owns a 2005 Hyundai Tucson. The contact stated that on several occasions while driving 65 mph and attempting to accelerate, the rpm failed to raise, and the vehicle failed to respond. No warning lights were illuminated. The vehicle was not diagnosed or repaired. Neither the dealer nor the manufacturer was notified of the failure. The failure mileage was approximately 105,000.

The contact owns a 2005 Hyundai Tucson. The contact stated that after refueling, the vehicle would not immediately start. Once the vehicle was started, the vehicle experienced unintended acceleration. The vehicle was taken to an independent mechanic who diagnosed that the nox, purge valve, fuel trim and camshaft sensors were faulty and needed to be replaced. The sensors were replaced however, ten days later the failure recurred. Laurel Hyundai located at 998 eisenhower blvd, johnstown, PA 15904 was notified of the failure. The manufacturer was not made aware of the failure. The failure mileage was 123,000.

The first time this happened I was pulling into a parking place in a shopping center. As I was turning into the parking place I very lightly tapped the accelerator and the engine reved up and I applied the brake only to have the car continue forward and go up the cement curb. I then pushed down on the brake pedal as hard as I could and only then did the car stop. If the cement block had not been there, I would have hit the car parked directly in front of me. The front tires had gone about two feet up on the cement block. The next time this happened I was once again parking. This time I was parking parallel to the curb. I pulled into and in front of the space I was going to park in. I put the car in reverse and began to back up slowly with my foot over the brake pedal. Suddenly, the engine reved up and the car lurched backward. This time I applied the brake very hard and I was able to stop my car before I hit car in back of me.

While stopped at a light the engine revved up to a high rate. I tried to put the transmission into neutral but put it into reverse instead, the high rate of revs continued, finally got it into neutral and engine went back to normal idle speed. When light changed put transmission into drive and proceeded home (a few blocks) without incident. This happened about 13 months ago whereby the mechanic replaced the idle speed control and throttle position sensor. Also they did a throttle body and fuel injection service at that time.

Transmission keeps slipping out of gear when you put into gear and car won't move. You stop at a light and even though car is in gear it won't move. Flip it back and forth on auto gear shift sometimes it moves. Other times it changes gears or slips out.

Unexpected acceleration of engine when at complete stop (at stop sign) and foot had been on brake for at least 30 seconds. Shift was in drive, engine went full speed, all wheels spun on ground, creating much smoke. Foot remained on brake. Note that accelerator pedal when not engaged is below level of brake pedal when it is engaged and that when accelerator pedal is full down then its level is 3 inches below the brake pedal level when it is engaged. Right foot was on brake - thus no way for operator error since if foot had been off brake the vehicle would have shot forward into intersection and there would have been a multiple car accident. And there is no way to have right foot on brake and to have accelerator full down at the same time. Shifted to neutral, engine continued to race, some noise when shifted - may have harmed transmission. Turned off ignition switch and engine stopped. Vehicle started normally after this. Ac was on. Car had full dealer service at 45,661 miles and state inspection a week before this incident. At 45755 miles, tech confirmed ses light; found code p0150 oxygen sensor- not replaced, software updated for engine control module.

Misfire cylinder #5. This has been an ongoing problem shortly after my mother gave me the vehicle at apx. 24,000 miles. The car was transported from the east coast here to arizona. It has been in and out of Hyundai dealerships and still no fix, with my father paying the bills, which is hard for him being on a fixed income, but my safety as well as his grand children are paramount. The vehicle will quickly slow down from a 70 mph speed to 35mph without warning and sometimes the engine light will come on (code p0305). I made a complaint once before (case #389816). This continuing problem with no fix has me have several near misses of a rear end collision, which so far I have been lucky not to have. The most recent repair was on June 14th thru 15th, 2013 and the problem was back on the Monday after picking the vehicle on Sunday, the 16th. When the problem first happened the vehicle was still under the extended service agreement and of course it's now expired will the same problem that wasn't researched during that time. I have seen many comments with owners having the same issues on Hyundai's forums, so it's not my imagination. Can someone please investigate these claims so that the problem can be solved? if I could afford a new vehicle it would solve my problem and pass it to someone else, but I don't have the money to do that. Please help, thank you.

I was slowing to a stop and could feel that the car was going to die and it did. I took it to the dealer and they did a fuel induction service and it seemed to fix the problem. The dealer should have not charged me for a car so new, but they put under the service "maitenance" which I didn't find out till a couple years later when it happened again and I called the dealership. I have since had the same incident happen 5 times and after reading several people have had the same thing with no explaination I decided to put my incidents in so that more people would know it isn't just a single happening of the same thing. After this happens I take the car on the freeway and floor it meaning to blow out what I think may be stuck in the fuel line???? it always works for a while. This thing doesnt occur for any particular reason and I have the car well maintained. I now have over 120,000 miles and the last time it did this was about 6 months ago. Thank goodness nothing bad has happened becuase of it.

: the consumer stated the vehicle does not reach a high enough temperature reading to operate in cold weather. The vehicle has been taken to the dealership four times for this problem. The first time the vehicle was determined to have an air pocket in the heating system. The consumer continued having the same type of problem. The vehicle was taken back to the dealership a second time. The dealership acknowledged there was a problem with the thermostat and it was replaced. The problems with the engine temperature persisted therefore, the vehicle was taken back to the dealership a third time. The dealership replaced the temperature sensor which did not correct the problem. The vehicle was taken back a fourth time and no problems were found.