My 90 silverado was shifting fine until one day coming home from work it wouldn't shift gears unless you nailed it wide open and finally it would shift hard into 2nd and the same to make it shift to 3rd and it wouldn't go into OD at all.
I made it home and parked it for a couple of years because I had already bought another truck and started driving it.
My buddy told me to stomp on the gas petal real hard about 10 times with the truck not running because it can get trash in the pressure cable, and that got it shifting again until today.
Now it's starting to downshift from 3rd to 2nd when I slow down to about 15mph and It's up-shifting late and hard again also but not as bad as the first time.
I tried the stomping method again but it didn't work this time.....any advice?
I googled (700r4 troubleshooting) and found this kit--anyone tried it?