Transmission slipping
My 2006 Tundra has a slipping problem in 1st and second gear but once it kicks in past third its fine.. I never had this problem until one time I needed a jump start and someone hooked up / the jumper cables in reverse which fried a bunch of electrical diodes through out the trucks electrical system , which I had Toyota Service department fix.. But ever since then my trucks transmission started to behave strangely. It works just like new, completely normal, if I remove the battery cables for 10 mins. and this seems to reset the transmission.. It will at that point run perfectly normal for a 1 or 2 hundred miles , and then begins slightly slipping during take off between 1st and 2nd gears and progressivly gets worse until I remove the battery cables and reset the tranny again, and then it works fine again for a couple hundred more miles.. Anyone have any idea what this problem is ? Is it electrical . or the tranny itself?