I have a 1993 Chevrolet S10 Blazer. Its a CPI 4.3 vortec with the 4l60e transmission. It takes off in 2nd even if you drop it in low. Although it starts in 2nd all the other gears shift and downshift properly. Ive changed the filter and topped it off with fluid and it still does it, Ive even changed the ecm just to try it. Ive heard somthing about an accumulator piston but im not sure which on. Thanks for the help.