Thread: Won't shift from 30mph to 47mph, no matter what i do! HELP!

There's nothing like rapping out in 2nd gear because the speed limit is 40 and your car won't shift! I did the tranny fluid, new filter, synthetic fluid etc and I can't really say if it was happening before that or after because she has had soooooooo many things go wrong I lost track in the process of fixing them all. I would really like to know why it's doing this because it's not showing any codes when I run them with my million dollar snap on scanner, so wtf! I'm pretty sure it's not good for it and would like to avoid any other problems as a result of this one. A lot of people who I have asked said it was the tranny slipping, then I took them for a ride and when it's stuck between those speeds I press on the gas and she jumps to it instead of slipping like assume the people thought it would, and I'm still at a loss as to why and now, so are they. Help me! And if anyone knows what other cars have these same tranny's (if any) and have some insight on a good avenue to take if and when I decide to replace it that would be soooooo awesome!

It won't up shift between those speeds, I"m pretty sure it only goes through the first gear and the second is the one that has the problem. Sometimes she's responsive and sometimes she's not I just got a gauge to test the transmission in hopes of narrowing down the issue, have you ever done that before? I know I'm not supposed to run the test for longer than 2 minutes and the car has to be at running temperature, anything else I need to know or can do???

the car is supercharged and the only reason I haven't set it on fire at this point actually haha so what I meant was it wont go from 2nd to 3rd from what I can tell, I only feel it go through first gear before it starts this crap so I assume 2nd to 3rd is correct. and i am pretty sure I can command the gears from my scan tool, it's the snap on modis if that helps at all. I did a test on someone elses transmission a while back with it but I am not sure if it was the gears I was commanding or something else, all I know is I started the test and went up from 1, every five seconds until I got to 10, recording the reading on the gauge each time. I have been wanting to do this to my car but i'm just really uncomfortable with what I've been told about that particular test and what it can do to a transmission if something went wrong. is there any steps I could and should take that you think would be helpful??

First off.. did you drive the car previous to all the work and verify it had all four gears working?

When you did the trans.. I assume you checked the level with the engine running? If not.. that's likely the issue
Use the modis to command shifts, I'm pretty sure it'll do it.

Thank you very much for you response, very very helpful. I guess I didn't state the year of my car ha oops...! It's a 97 so that works with what you were explaining. The last paragraph where you explain a test to see whether the problem is internal and 3rd clutch or sprag etc. sounds like exactly what I need but I don't completely understand what I do after I unplug the connector. I am very familiar with these cars and am capable of doing this test I just won't feel comfortable doing anything unless I am confident I fully understand what I need to do. If you wouldn't mind going into more detail for me on the procedure/steps you would be my hero!!! Thank you again!

Well hell, what now? What would you suggest as the best plan of action??? Preferably the most inexpensive yet efficient avenue but if there isn't one then lay em on me, at this point it really doesn't matter about the money I guess cuz my sanity is on the line lol

Do what trannyman stated.

Pull connector off trans. Start car and put car in 2 on shifter start driving, when you get moving put the shifter in 3 or D. If you feel no difference, the problem is the sprag or clutches for 3rd gear.

AMAZING! I'll do that today and post what happens later...

Ok so just an update, I hooked up my Snap-On Modis and went to the Command Gear section where it takes over the transmission basically and I just hit the ' Y ' button to shift. The one problem I found was, like someone previously said in this thread, I do not have 3rd gear, it's going straight from 2nd to OD explaining why it won't shift until 47MPH! AMAZING! When I tried to command it to go into the 3rd from 2nd the RPM does not change period when they definitely should drop and start 3rd gear but it doesn't, so thank you to the two or 3 that mentioned this particular solution.