[scholzee]

The first step would be to change the transmission fluid. I have had good luck with "Seafoam Trans Tune" NAPA auto carries it. Follow the directions on the can. You put it in and it helps gat the junk out when you change the fluid. I have used it on a Explorer with 165K miles and my Blazer with 185K miles. I do not believe in what others say about if its "high miles do not change the fluid it will make it worse or ruin the tranny theory " It has worked well for me.