Three problems related to transmission gear slipping have been reported for the 2008 Ford F-150. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 Ford F-150 based on all problems reported for the 2008 F-150.
I was driving on on a city street when the truck started to hesitated. The transmission seemed to change hard. I stopped at a light and I noticed that the o/d indicator was on. When I started to move again, it seemed as if the transmission was slipping and the trans fault indicator came on. The transmission did not change smoothly when I drove approximately another mile. I parked the truck in fear of further damaging the truck.
There has been several times while I'm driving at a slow rate of speed at 20 to 30 mph, my rpm gauge will rev high to 4 to 5 and stay there for several minutes and will go back to normal rpm after my transmission shifts gears. I don't see why my truck needs to rev that high at a slow speed to shift gears. To me that shows that my transmission is slipping gears or the gear ratio was never properly tuned when I bought the truck. My truck revving that high while I'm slowing driving is an unsafe act and could potentially cause more unsafe situations.
The transmission slips in the 2008 Ford f150 crew cab. Yesterday I put it in reverse and it did not engage. So then I had to put it into park and then engage it again to reverse then it let me go.