I have a 93 4runner. When i put it in drive, and press the gas the motor revs but the truck barely moves. I have to put it in first gear to get to start and then shift to second and then drive. It was also slipping pretty bad, especially in reverse. I flushed the transmission and changed the filter. That fixed the slipping but I am still not getting any power in drive. Is this the transmission, or something else? The problem started about a month ago, after having the computer replaced. Could it be something with that?

 

I'm having the same problem. Did you ever find a solution?