I am also haing problems (1994)with shifting..(automatic trans).when I take of..it sometimes won't go into 1st, and when traveling 60mph automatically downshifts for awile..then goes back to normal...I had the fluids and filter changed..helped a little..then I had the shifting selenoid thing inside the tranny cleaned..it worked great for about 3 weeks..now back to it's old tricks.

HELP!!!!

94, how many miles on?

I knew a guy that was having problems with his AT, he changed the fluid 3x in about or 7 or 8000 miles, and it was fine after that. If the fluid change helped, then degraded over time, then some of the sludge (for lack of a better word) has worked itself around the transmission. I'd think that changing the fluid again will help. Just my :2cents:

Is the transmission having problems itself? Is it worn out? When you replaced the tranny fluid did you "power flush?" I think that helped when I changed the fluid, I had AMMCO transmission flush the transmission, they hook up a blower to it. Maybe that would help. And did you adjust the transmission when you replaced the fluid and filter?