Scotty, I recently purchased a 2000 Bonneville SSEi supercharged....134,000 miles. Transmission shifts hard at times or sometimes it shifts soft or feels like it's lost. No codes. I changed the fluid and filter recently and added the Lucas anti-slip. I've heard about people trying the Transgo shift improvement kit. Have you heard of it?? And if you have does it work?? I plan on keeping the car for a long time, even if I have to replace the transmission but if the shift kit would buy me more time I would put it in. Thank you for all you do.
Bump.
Just ride it out
Dont know that car but check if you have any shifting regulation, or linkage that can be corrected a little. I have 1998 Jeep with 46RH its hydraulic controlled and I have linkage that can be corrected a little if the shifts are too hard or too soft.
