No overdrive 4r100

David N · Mar 28, 2013

So I did a 4x4 launch tonite with the new setup. I left pretty hard, and the truck felt amazing. It shifted great, and then the 3-4 shift slammed, and what sounded like a loud bang. Now I have no overdrive. The truck drives fine, the torque converter locks, and the tranny shifts fine. It just doesn't go into OD. When it is supposed to be in OD, the tc won't lock.

Any ideas that I can check out on my own?

David N · Mar 28, 2013

And also, the fluid smells absolutely horrible...

Lethalthreat7.3 · Mar 28, 2013

Doesn't sound good. Have you hooked up a gauge to see what happens hydraulically?

4.0l sahara · Mar 28, 2013

Time to yank the trans out........

David N · Mar 28, 2013

No, it literally just did it 20 minutes ago. I read something about a valve that can hang open. I just wanted to see the opinions on that. But the loud bang makes me think something hard broke. But Im having trouble figuring out what.

neverkickn · Mar 28, 2013

A fluid change outta fix it:lookaround:

4.0l sahara · Mar 28, 2013

If it made a loud bang and the fluid is now burnt it will need to come out.

ghohouston · Mar 28, 2013

Assuming it still has fluid in it?? Did you wipe off dipstick and re-check?

David N · Mar 28, 2013

No I didn't re check. But I will check it soon.

average · Mar 29, 2013

That plus black fluid and random slipping was the end of my trans. Barely made it down to the trans shop at that point.

lincolnlocker · Mar 29, 2013

David N said:
So I did a 4x4 launch tonite with the new setup. I left pretty hard, and the truck felt amazing. It shifted great, and then the 3-4 shift slammed, and what sounded like a loud bang. Now I have no overdrive. The truck drives fine, the torque converter locks, and the tranny shifts fine. It just doesn't go into OD. When it is supposed to be in OD, the tc won't lock.

Any ideas that I can check out on my own?

was this with the twisted stage 2 trans?

neverkickn · Mar 29, 2013

average said:
That plus black fluid and random slipping was the end of my trans. Barely made it down to the trans shop at that point.

Drove mine three hours north to BTS with no second gear and no ODLOL

It wasn't pleasant.

David N · Mar 29, 2013

LOL

Yeah this was with Twisted's Stage II. I called them today, Rave said to bring it in and it will be fixed under warranty. But Im going back with billet parts this time. It has been abused for the past year, and if it broke this time, it will break again.

MINK · Mar 29, 2013

David N said:
LOL

Yeah this was with Twisted's Stage II. I called them today, Rave said to bring it in and it will be fixed under warranty. But Im going back with billet parts this time. It has been abused for the past year, and if it broke this time, it will break again.

Right on man!

bluedge8 · Mar 29, 2013

good luck,

lincolnlocker · Mar 30, 2013

David N said:
LOL

Yeah this was with Twisted's Stage II. I called them today, Rave said to bring it in and it will be fixed under warranty. But Im going back with billet parts this time. It has been abused for the past year, and if it broke this time, it will break again.

good deal.... i was wondering how they would hold up... so you basically have a somewhat sorta built trans and you have abused it well? and it held till now?

David N · Mar 30, 2013

Yeah I believe this trans is rated to ~600 hp. It was at ~500 for over a year and a half, and they were hard miles. LOL I'm hoping with this new setup Im closer to 600 now.

And I don't know that anything actually broke yet. We will see when Rave tears it down. It could be something simple. Who knows. But I am probably going back with some billet parts this time.

lincolnlocker · Mar 30, 2013

please describe the ABUSE you put it through please?

live life full throttle

02BigD · Mar 30, 2013

Whats the new setup?

David N · Mar 30, 2013

The truck saw 40 psi at least 5 times a day, for 7 days a week for a year and a half. Probably 30 or more truck pulls, one of which while I was attempting to shift from 2nd to D, I accidently went to neutral. And not thinking clearly, I immediately slammed it back into D with the accelerator to the floor. I also drive with a tc lock up switch just about every stop and go. So it shifted with the tc locked up most of the time. It has seen probably 30 or so passes on the track as well.

And I'm hoping to go back with billet parts this time Dom. Not sure exactly what yet, as we will have to see about cost. Being a college kid sucks. Big time.