AT pops into neutral on 2-3 shift

[Rockemum]

So This car is just a little DD I put together. 95 AWD auto, 6 bolt swap with kiggly kit, basically stock. IT was driving normal except for it would slip in first gear when cold, unless OD was off. I bought a used valve body with the shift kit installed and a new large separator plate. I rebuilt MY OWN (95) valve body with the spirngs and check balls per the IPT videos, which went great aside from digging for the correct size bits. The only spring I didnt have was the "brown" one that is specific to a 2g trans, as the kit came out of a 91 Valve body. New filter, gasket and fluids, and everything went together great, so I thought.

Now, when I'm in D with OD enabled, first and second are firm and when it tries to go into 3rd or OD, the car bucks and it pops into neutral. If I disable OD, I have first and second (I think) and it drives fine for DD purposes and downshifts and feels okay. Any I idea on what could be wrong? I'm almost certain that I did everything right, but I'm not perfect.

Also, this MAY be the real issue, I only have to press the button on my shifter when shifting to/from park. Is my selector malfunctioning or is this normal. I'm going to keep looking into this and searching, but any experinced help is welcome.

Yes, I have fluid right above the hot mark when hot. Thanks.

[Rockemum]

So after adjusting the shifter assembly, I now have to use the button as it should be used. I just pulled the driver side cover off and the button wasn't coming all the way up and the pin was just barely hitting the catch for the parking "lock". That's fixed, so then I returned my blue wire switch back to stock wiring, and Bam, Limp mode. Unhooked the battery and I'll drive it and see if any codes pop up now... Worst case I guess I'm pulling the valve body back out.

[Rockemum]

Pulled valve body today and rebuilt it again, cleaned all valves again and assured proper installation. Check balls are all there, one might have been in the wrong place, but I don't remember where I put it the first time, but I was aware the first time that they have different looking holes that the rest of the channels, so I doubt it. All orings are good, not smashed or torn, everything torqued to 52 in/lbs.

I think what's happenening is I'm actually downshifting for some reason. I'm going to pull the TPS from my spyder and I guess that car gets a new one now, haha. We'll see.

[HOT97ECLIPSEGSX]

I'd help ya if I knew my A/T transmissions. Unfortunately, I don't.

[Rockemum]

Tcu reads good, no codes. Tps was not the issue either. Trying an oem style filter from napa once i can get one. Sigh...

[BISHILVR]

If you had or have a slipping condition, a shift kit is not going to fix it, likely your transmission is worn out or was low on fluid/dirty filter originally, not sure what is going on with it now, as we dont really know if it now has added problems or not. I would always advise to properly diagnose a problem before poking around inside of the transmission which can complicate or hide a problem.

[Rockemum]

I dont think it was slipping before. It was more like it was in 2nd. I think not driving automatics too much makes everything seem weird. Im going to make a shiftbox tomorrow and try to verify mechanical function.

[KeeleDesign]

Your problem is going to get worse. My car did the same thing it would jump into neutral when going to 3rd , now I don't have 3rd at all after 4 months of that happening. And after a year of still DD the car, I still don't know why 3rd is working. The valve body has been gone through and still nothing changed. It is odd.

[Rockemum]

Well, I did the shiftbox, which I like tons better that the sudden shift in o/d off mode, haha, but It seems that MY problem is in fact mechanical, and preobably due to the valve body install. Who knew? I have two gears, either first or second, and third. I would say I have 1st and 3rd, simply because 2 and 4 are related to the kickdown band, and when it tries to go into fourth, it feels like its in second. I'm going to pull the valve body again, and put my original, non-drilled separator plate back in and see what happens.

I have to wait on further work though, putting my girlfriends 7 bolt together, and then get her gst running so I can use that spot in the garage again.

[Rockemum]

So I got the GST driving and "the hell" out of my way and pulled the valve body for the third or fourth time, I don't even remember. I started by dissasembling everything with the boxes I used before to hold the bolts. I drew pictures, though at this point I don't even need them as far as fastners go, being that I've handled them so much. I put all of the valves in line and compared to the IPT videos, and everything looked fine, except one valve that they don't actuall remove that I found by chance.

I had the spare valve body that I stole the shift kit from, and to ensure that the valves that aren't shown in the videos were oriented properly, I looked at the marks on the end plate and the valve itself to see where they had been contacting and found one small half valve to be backwards. To ensure this was the problem I kept the drilled spacer plate in, and reassembled everything. ( I had suspected that I might have drilled something wrong in the new plate) I tested the solenoids befored re-installing and turned down my pressure adjustments just a tad as I have been receiving complaints about the ride quality.

Filled her up and checked fluid, Good. Took it for a drive and I have all gears again! I wired out the manual box and turned overdrive on, bracing myself for the 2-3-2 shift I was having, and nothing. 1-2-3-4. Awesome.

Unfortunately there isn't a lot of help in this area, but I'm well aware that new problems are usually a result of something the operator has done, but I guess I wasn't dilligent enough in my search for the problem. It's pretty embarrasing, becuase I was so sure of myself, but I'm glad that it wasn't internal or anything major.