Well, I don't really know how to prove that the car shifted fine before, all I have is that I went back to the shop the same day because it was shifting really hard in all gears b/c it was low on fluid. They apologized and filled it.. and I went back a week or so later with the same problem after i took a long trip on a hot day. This doesn't happen very often, only when its really warm out and I've been driving for a long time and the engine temp is up high. It just seems to slam into gear; but if i shut the car off for 30 sec or so then restart it; the car is fine.. shift smooth as the day it was new. idk why. The solenoid does make sense, and i'm leaning toward that. I'm just pissed if it happened because of the botched up fluid change job by the shop. I don't know how i could prove it though. And Hell no, i most certainly don't need a rebuild. The trans itself is perfectly fine otherwise and shifts really well. I'd have a law suit with that shop before I had to do a rebuild![]()