Where are you getting that these have no TSS?
http://cgi.ebay.com/ebaymotors/01-02...-/310226948824

http://www.fixya.com/cars/t1967529-s...003_dodge_neon

yep your right put that part in and your problems won't be solved but if you want to keep arguing about this part fixing the no rev past 4k in neutral... have at it, it'll fix your no shift problem.

Im not trying to argue. Im trying to listen to what youre saying, but everything youre telling me is conflicting with everything else I'm reading. Dont get frustrated with me, Im just trying to get **** figured out before I go buying parts. If I wasnt listening to what youre saying, I wouldnt be bothering to post here.

Correct me if im wrong- but cycling the key on/off 3x's will cause the CEL to flash the codes if any are present?

This is a site referring directly to the NEON and LIMP MODE and the SHIFTER SOLENOID.

If I'm retarded, please, by all means, school me. But I'm just not finding any information thats consistent with what youre telling me.

http://www.allpar.com/fix/trans.html

well your on the part you need TSS I just never heard it called that. It's always been known as a solenoid pack. ya, put that part in. but it won't fix your 4k max rpm in neutral and if it was bad, you would still be able to go well over 3k in drive. infact you'd be stuck in 2nd gear with it bad and you'd be able to run over 6500rpm @ about 80mph.

oh and to actually diagnose this TSS, you can only do it with a real scanner and accessing the transmission computer. the engine computer and MIL codes will have little to no value in accurate diagnosis.

however you never really answered my very first question about is this the 41TE transmission you have in your car? oh and when these transmissions default to 2nd gear only operation it's called "limp-in".

Its been a while since I posted, but I've learned a lot about what I have since my last post. Sapporo, Im sorry for doubting you. I was very confused because of many of my resources telling me one thing, and you telling me another, and now I know why. I was under the impression that the Neon came with two different transmissions- auto and manual. Little did I know that it came with a 3 speed and a 4 speed auto. All of the information I was finding elsewhere was regarding the 4 speed, which is why what you were telling me wasnt making sense. So my apologies.

Anyway, the transmission is a 31TH three speed, and you were correct- there is no shifter pack for this transmission. I'm wondering what my options are with the three speed. Some sources say the 3spd is very stout and can take a lot of abuse, while others say that once it starts acting up, replace it. I started by pulling the pan and replacing the filter and trans fluid. The fluid had a brownish reddish color, but didnt contain any metal shavings. I have reinstalled the filter and pan, but the car is still in limp mode. I disconnected the battery, restarted the car, and let it idle for 10mins hoping to reset the ECU, but that didnt make a difference.

What are my options here? Are there any common, easily fixable problems with this transmission?

there is NO such thing as 'limp mode' with a 31th. see the "H" stands for hydraulic meaning there is NO computer input what so ever to shifting this transmission. the only computer control is for the torque converter lockup, which does not affect shifting.


now that we know you have a 3speed hydraulically controlled transmission, so start over, WTF is wrong?

420SX go to the car and turn the key on, off, on, off, then on and tell us what it says on the dash for codes. It will start with P and have 4 numbers after it. Like P0344. Put all of them in this forum. There is a such thing as limp mode for the PCM and it will keep the car from going past 3000rpm my SRT-4 has done this when my crank sensor was going bad. It keeps you the driver from doing more damage to the car until you get it fixed. Crank senor and cam sensor will throw a code and put the car in limp mode not allowing you to go past 3000rpm no matter what gear you are in. These are just a couple examples. So do the above and write down all the codes that come on the dash. However, going to the dealer to have the codes pulled is in the end better. But at least we can tell you what might be wrong if it shows a code on the dash.

It is confusing because we are talking about two seperate issues. One is transmission (wont shift into third gear as said in first post) and one is the car wont go past 3000rpm.

I did this- P1684 Battery disconnected in last 50 starts. Thats the only code its showing. I was under the impression that the transmission problems are what were causing the engine to run that way, but now Im not so sure. Is the transmission problem causing the engine problem, or is the engine problem causing the transmission problem? Or are they completely unrelated? The fact that theres no useable code for me to work off of makes it more difficult.

Basically what happens is when I start the car and press the gas, the revs climb slowly. When it gets to about 3500rpm, the revs stop climbing, and the car sounds like its at redline... meaning I could continue to rev it, but havent because it really doesnt wanna rev past that... It just sounds like its pinned. Not revved totally out, not hitting a rev limiter.. it just kinda tops out, and the revs stop climbing. Im not sure exactly where it will stop revving. The car will move under its own power, and reverse also works, but it will only do about 35mph. I changed the fluid and filter. The cat was recently replaced (not sure if thats relevant, but it does rule out a clogged cat). It almost seems like the tach is reading double- but it doesnt sound like its running on less than 4 cylinders. It idles perfectly fine, its just as soon as I start to rev it, it doesnt want to rev up normally. I reset the ecu as well.

Would it help if i took a video? I can take one and post it up this afternoon.