Torque Converter or Transmission ?
Today on the way to work I was driving along and I felt the engine rev up a little. I
thought it could have been ice so I slowed down and engaged the 4wd. A few miles
later it did it again and it was definitely the drivetrain not engaging. I slowly revved
the motor a few times and the truck slowed slightly and then it re-engaged. I'm
suspecting perhaps the torque converter or perhaps overdrive. I checked the fluid and
the level was good. Drove 20 more miles into work with no more issues so far. Any
suggestions or thoughts ?