Transmission Slip Out Of Gear Problems of Ford Five Hundred

Vehicle slipped out of drive into neutral while ascending hill. I had to pull over completely and stop, shift into low and slowly back into drive. The car behind me almost rear ended me as I had lost power with no warning. Car once warmed starts to buck violently while driving at an even speed, bucks violently when coming to a stop and randomly slips out of gear with no warning. I have had this car since 2009 and have pot less then 20000 miles on it. The dealer tells me the computer does not read any problems.

See all problems of the 2005 Ford Five Hundred 🔎.

The contact owns a 2005 Ford Five Hundred. While driving 55 mph, the vehicle slipped out of gear and the rpm's increased. The vehicle was taken to the dealer, but they could not provide a remedy. The contact feels that a crash could occur due to the over acceleration. The current mileage was 120,000 and failure mileage was 60,000.

Purchased Ford Five Hundred in February 2006, an sel automatic. Around 15,000 miles began noticing transmission issues, mostly hesitation when shifting into gear. First major incident occurred oct. 22, 2006 while traveling at 65 miles per hour on the freeway, engine revved while pressing the gas pedal but vehicle slowed as if it was in neutral. Then it punched violently and resumed driving normally. We pulled over thinking something major was wrong with the vehicle. We began our journey again and had several incidents of minor punching of the transmission, like it was slipping out of gear and going back in again. After we returned home, these problems were very intermittent. About 2 weeks later while driving on the freeway, the vehicle slipped out of gear and almost came to a complete stop before re-engaging. We brought it to the Ford dealer the second week in November. They said they could not duplicate the issue, however they said there was a computer technician log that suggested a reset. They reset the computer, changed the oil, checked the transmission fluid, etc. A few days later the transmission was back to slipping intermittently. On November 20, 2006, the severe punching began again, so bad this time the vehicle almost came to a complete stop. We had to shift the gear into 2nd before it engaged and we were able to accelerate. Since we were on vacation, we had to continue on our trip with the transmission slipping in and out of gear. When we returned from our trip, back to the Ford dealer we went. We took the transmission technician guy for a test drive and luckily we were able to duplicate the problem. He was amazed, hadn't seen anything like it before. He talked to other transmission tech's who were stumped by the problem, too. He ended up calling Ford headquarters and spoke with the engineers. They decided a complete replacement of the transmission was in order because they weren't sure what was causing the problem.