Car Stall problems of the 2008 Hyundai Tucson

My 2008 v6 Tucson has stalled when stopped in traffic numerous times. It usually started right back up but the last time it would start but not stay running. The car also chugs when I release the gas pedal at around 45 mph and it does not shift smoothly during regular driving. I feel that the car is unreliable and I do not feel safe taking it on long trips. I have had it in to the dealer twice as it is still under warranty. The first time they replaced the mass air sensor. This did not solve the problem. The second time I brought it in, they told me they found wires that were loose and that they cleaned a ground. The car is not running any better and I expect the stalling problem to start at any time. I am very unsatisfied with the fact that Hyundai cannot correct the problem and the car is not running properly or safely.

The contact owns a 2008 Hyundai Tucson. The contact stated that while driving at approximately 45 mph, the vehicle stalled. The failure was experienced numerous times. The vehicle was taken to the dealer. The technician was unable to diagnose the failure. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 27,000 and the current mileage was 60,380.

The contact owns a 2008 Hyundai Tucson. The contact stated that when sitting in idle the vehicle would suddenly stalled without any warning. The vehice was taken to a dealer and they advised her that they were unable to diagnose the failure. The vehicle had not been repaired. The manufacturer had not been contacted. The failure mileage was approximately 14,000.