2G Trans won’t shift to 3rd

[awdmonster1904]

How’s it going

Curry have an issue with my auto transmission not shifting into 3rd.

If I disconnected the shift box it defaults to 3rd and it moves so 3rd is there.

It will let me downshift from 3rd to 2nd not up shift to 3rd.

Last track event I also lost reverse. I pressure tested still has 200 psi of pressure…

Any advise how to proceed thanks again

 

[DogWhistle]

You’ll have to clarify some things:

Is reverse now working again? P R N D is all accessed mechanically. Make sure your shifter detents are aligned with your valve body detents.

Shift box? Is this an aftermarket box like Forced Four, for example, or just the factory TCU?

Track day. Do you have an auxillary transmission cooler? Shift kits installed?

Have you unplugged — checked — and replugged in the harness connections on the transmission? Vibration and high heat conditions might have compromised the connections.

 

[awdmonster1904]

You’ll have to clarify some things:

Is reverse now working again? P R N D is all accessed mechanically. Make sure your shifter detents are aligned with your valve body detents.

Shift box? Is this an aftermarket box like Forced Four, for example, or just the factory TCU?

Track day. Do you have an auxillary transmission cooler? Shift kits installed?

Have you unplugged — checked — and replugged in the harness connections on the transmission? Vibration and high heat conditions might have compromised the connections.

-Reverse is not working but i tested the pressure port has 200 psi you feel it go in but when you rev it don’t move but I’ll roll …

-Track application only yes has a trans cooler and shift kit and shift box I already tested 2 shift boxes and same issue also tested them with volt meter usually when you shift to 3rd there is no power applied to the silanoids

- yes


Here is what I’m dealing with it does 1-2 no issues but 2-3 stays in 2nd
If i disconnect the shift box it’s in 3rd and it moves but once i Connect the box and move it in 3rd by default it moves I’ll down shift to 2 and makes the shift but if i try to shift from 2nd to 3 it stays in 2nd

It makes 1-2 shift
No 2-3 stays in second
It makes 3 down to 2
It makes 2-4
But when you go 4to 3 feels like it hits the brakes a little bit

 

[DogWhistle]

The key may be that it won’t shift into 3rd gear. It is correct that no power applied to the solenoids is the condition of 3rd gear.

The fact that it stays in second means there is still power being applied to the solenoids to keep it in second gear.

Assuming you’ve carefully checked the wiring and connectors on the outside of the transmission housing, there may be a short in the solenoid wiring harness inside the trans that is still finding a way to power the solenoid to keep it in second.

The power may still be being applied to that solenoid while you shift into reverse and that could be why the car won move.

Pull the solenoid group and check the internal wiring for shorts.

 

[awdmonster1904]

Update ***

Did a pressure test on front basket and only reads 60 psi so trans is coming out gotta open it up

 

[awdmonster1904]

Found the issue working on fixing it

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[1990TSIAWDTALON]

Well when you drive it like it was built to be driven, I guess these things happen. Why the low pressure? My DTR runs 200 in all 4 according to his paperwork and it DID shift very firm (but then the end of the main shaft snapped off after 200 miles or so.. )

 

[awdmonster1904]

Well when you drive it like it was built to be driven, I guess these things happen. Why the low pressure? My DTR runs 200 in all 4 according to his paperwork and it DID shift very firm (but then the end of the main shaft snapped off after 200 miles or so.. )

A while back I made the mistake to wire the solenoids incorrectly when I raced the car in the truck I went from first gear to fourth gear.

Obviously I toasted the end clutches at that time. That was back in January of this year. I’m sure at the time I hurt rear drum clutches. But was able to work

In Arizona at no prep the car did feel sluggish on top. Heat went to 225 on the trans

A couple weeks after that event I decided to go to my local track to fine-tune my launching strategy.

After one pass I’ve lost reverse I made a conscious decision that I dont need reverse to race
Ran my PB with only 2 working gears 5.85@111 1.41 sixty

What i learned from this ….

If you have an automatic transmission issues the first thing should be checking the pressures

Second if you lose reverse and the seal on the valve body is in perfect condition and placement you probably toasted rear drum clutches

This was a great learning experience

 

[1990TSIAWDTALON]

I didn't want to "like" it but I greatly appreciate the explanation and what happened for the thread purposes.
Both times I have accidentally went to 4th and toasted it, it has given me issues afterwards. So sorry about the luck. If I were confident enough I would have my main shaft replaced and the car ready for retune and track time but last time my trans gave me issues, I dam near welded the front pack in, then broke the replacement trans input shaft somehow.
My son and I follow you here and on IG. Keep up the effort, I'm trying. Age is not being kind but I still try to push it aside!
Marty

 

[Dark_50]

How’s it going

Curry have an issue with my auto transmission not shifting into 3rd.

If I disconnected the shift box it defaults to 3rd and it moves so 3rd is there.

It will let me downshift from 3rd to 2nd not up shift to 3rd.

Last track event I also lost reverse. I pressure tested still has 200 psi of pressure…

Any advise how to proceed thanks again

Hey I have a similar issue I believe in my 99 Eclipse auto.

The transmission is very iffy it will do 1-2 sometimes 2-3 but usually it will just redline and go into I believe maybe 4th or maybe it does go into 3rd. Adding to the issue the trans will sometimes down shift or something similar to that and will cause my car to feel like I slammed on the brakes.

I’m not the diagnostic type so I can’t figure out why it’s doing this. Would you know how to help me?

 

[awdmonster1904]

Hey I have a similar issue I believe in my 99 eclipse auto. The transmission is very iffy it will do 1-2 sometimes 2-3 but usually it will just redline and go into I believe maybe 4th or maybe it does go into 3rd. Adding to the issue the trans will sometimes down shift or something similar to that and will cause my car to feel like I slammed on the breaks. I’m not the diagnostic type so I can’t figure out why it’s doing this. Would you know how to help me?

I would start with checking the pressures and go from there . In my case it was the rear drum

 

[steve]

I’m not the diagnostic type so I can’t figure out why it’s doing this. Would you know how to help me?

Welcome to the site.

If you're not the diagnostic type, you might be best served taking it to a professional who is.

Please fill out a profile so we know exactly what type of 99 Eclipse Auto you have. It makes a big difference when it comes to helping you to know if it's a Spyder, RS/GS, or GST/GSX.