Transmission Gear Slipping problems of the 2006 Mercury Milan

Transmission is slipping, car is bucking and sometimes the engine slips to a reduced speed. I have to take my foot on and off the excelerator several times before the speed will increase. This is very dangerous during rush hour.

Well we were driving through the appalachian mountains on the highway, we went to pass a car that was slow. We stepped on the accelerator and it tried to shift into overdrive (because everyone if flying through there). But, as that happened the transmission slipped and sent the rpms to a really scary area where we thought it was going to blow up. Luckily, they came back down but as we would drive until it stopped. A couple months later we figured out if when that happened if we pulled over turned the car off let it sit for a minute then turn it back on and it would work fine for a while then. So, to me it almost seems like its a computer issue but its not because we went to an as-e certified shop and had the computers flashed then reprogrammed and it still does it while driving.

The contact owns a 2006 Mercury Milan. The contact stated that while decelerating from 30 mph, the transmission knocked and slipped. The contact took the vehicle to the dealer for a diagnostic test. The test results showed a defect valve body on the transmission. The dealer replaced the valve body. 44,000.

The first incident my car was bucking and shaking. I took to dealer and they replaced the computer that ran the transmission and 3 coils. Now at 77,000 it again is having slipping issues with the transmission. These issues seem to happen at random times, but usually between 40 and 50 mph. When you put your foot on the gas to accelerate from 40-50mph there is a loud banging sound when the transmission slips and you lose acceleration. You have to take your foot off the gas and try repeatedly again to get the car to accelerate. I almost got rear-ended by a tractor trailer when I attempted to change lanes, but could not accelerate due to the slipping problem. It took it to mechanic who had the car for 2 weeks and couldn't find the problem. Mechanic took it to Ford dealer and they said they put on computer diagnostics and couldn't find a problem. I have found countless other reports on the internet of people who have the same problem and even people who have reported either having to drive off the highway due to the lack of acceleration and also of people who have gotten into accidents due to this problem of not being able to accelerate. This is a very dangerous situation to be in on the highway - not being able to accelerate!!!!! I'm worried about getting in an accident and/or getting killed.