47re converter locking up in fwd and rev, and coming to a stop

[flathead31Ford]

The answer supplied by SnoKing was VB related, but there were steps in that post to troubleshoot electrical vs VB issues in that post if you step thru that whole post again.

If you decide on a Mystery Switch IMO, if you jump over to mopar1973man.com you can sign up for a monthly membership for a few bucks, there are articles on how to build a mystery switch to control lock up. It's on here as well somewhere, their format is a little bit easier to find the "article" it's not a post.

You need to figure out if it's electrical or mechanical and go from there.

I have see posts about bad internal harnesses, so when I did mine it was recommended to swap the harness with the new parts, you should be able to check the harness.

Don't have a shop per say.. but if I was looking here is how I would find a shop...

Goerend is a very good supplier, they do not do builds anymore, but their installer list should be pretty solid shops, but I don't know about where these places are, it's a starting point if you need a shop.

https://goerend.com/installers/

Find one near you and see the reviews of those shops, you can also call Goerend and see if they are still a recommended installer in case there was an issue and they were removed but web site not updated.

doesnt seem to be electrical, i pulled the trans relay, and it still does it...also i was told that hitting the brake it would not let it lock up, also was told it should not even be locking up in dr or rev.. and there is no voltage coming from the computer to call foe lock up,,,,,, the fact that it applys slowly until it kills the engine, has me thinking its tc and valve body...its has a new solenoid master kit installed

 

[flathead31Ford]

i like the idea of having an ato trans, and have no problem rebuilding one...but just dont know enough about lockup converters... just wish i could be sure what was wrong so i could fix it,,,lol if not going with a manual conversion...

 

[Timd32]

I don't know of a way to test these TC either at your home shop.

The TC is about 65lbs it's a bear to get it shipped out, but places like Goerend could possibly test it for you, give them a call and see if they offer that up, they are in northern Iowa if I recall.

There are some bench checks you can run on the VB.

 

[flathead31Ford]

I don't know of a way to test these TC either at your home shop.

The TC is about 65lbs it's a bear to get it shipped out, but places like Goerend could possibly test it for you, give them a call and see if they offer that up, they are in northern Iowa if I recall.

There are some bench checks you can run on the VB.

thanks

 

[flathead31Ford]

iwas told to stay away from a single disk converter,not sure why... if in a stock app.....

 

[Timd32]

Here is some info on converters.

https://goerend.com/converter-theory/

 

[SnoKing]

iwas told to stay away from a single disk converter,not sure why... if in a stock app.....

So you have ruled out the Spool Valve leaking. What ruled out that? SnoKing

 

[flathead31Ford]

So you have ruled out the Spool Valve leaking. What ruled out that? SnoKing

no i have not, iam thinking that has alot to do with it...

 

[dieselshadow]

The TC is a “dumb” device. There’s no controller, no relays, no solenoids, nothing to do anything on its own. It simply reacts to turning and transmitting force. If pressure is applied to the lockup clutch circuit, the clutch should lockup. It can’t and won’t lockup on its own as described, fluid pressure is being supplied somehow.

This isn’t saying there’s nothing wrong with the TC, but it’s not the source of this lockup issue.

Simply put, the TC is a container holding two fans and a simple clutch to lock them together. Not much going on beyond that.

The difference between a single disc clutch vs a triple is huge. The triple has a LOT more clutch surface to hold that torque your engine produces in a 1:1 ratio when applied. A single disc has to hold all of that force on its own. Billet TC’s have a large area for heat to dissipate and holds its shape better. These features usually go hand-in-hand. When you have raised internal pressures that many aftermarket trans kits have, this heavier flat backing plate makes the TC a lot stronger.

 

[Timd32]

iwas told to stay away from a single disk converter,not sure why... if in a stock app.....

Yeah for $200 more a triple disk is not a bad investment, IMO you can keep the stock stall speed for sure, that part of it does not need modification.

At the end of the day you will need to sort thru the wreckage of all the posts and ideas, took me a while to do that, my truck was still "OK" at the end, was able to pull the hay wagons and do its job. Once I had my list of what I think I needed, I consulted a pro shop in Goerend for my rebuild parts and had a good conversation on what my plans were with the truck and the sort.

If your looking to just fix what's broken I get it for sure you want to narrow it down first.

For me and my exact home shop I go back to how heavy these things are to get in and out of the truck without a lift and a second pair of hands, could just be me I guess can toss that out with a lift and help, if I had a helper even for a day would be night and day no issue pulling this apart a few times to troubleshoot and try a few things first.

IMO a built VB and Triple Disk TC are some serious investment.

 

[flathead31Ford]

thanks everyone.... i have plenty to sort through,,, lol

 

[flathead31Ford]

so i just left a diesel guy after awhile messing with the truck, he came to a conclusion that he thinks its the valve body. when
it start acting up he could run through the gears a few time , the it would come out of it and work great. he did this a few times, he thought that a valve is hanging up sometimes...also said if it was the converter was bad it would not fix itself and would have messed up to the point of junking it. he had a scan tool and said no codes,,,,,thoughts?

 

[Ozymandias]

iwas told to stay away from a single disk converter,not sure why... if in a stock app.....

And I'd told you the exact opposite, you dont want a triple disc as long as you dont need it.
It acts pretty harsh in engagement and beats the transmission.
I have now for 60k Miles a TC from BD, Single Disc with 60% more lining and it works - Perfect.

Remember, not everything that can be bought is always good for every application, and there is also a lot of trash on the market.
Be careful.

 

[Timd32]

I'm all for it being a VB issue, then you won't have to pull the whole trans. That would be great news.

I don't see why a good TC like Ozzy mentions would not work for a stock set up.

In my situation I have a series of matched parts and I kept my triple disc stock stall, it is part of my specific build, so I would not just throw a triple disc at your stock trans and nothing else. Just like you cant just install my exact VB for example with out doing other stuff, but I could get a VB built to what I needed and tell the builder I was keeping the stock TC.

So are you leaning towards getting your VB rebuilt or go with a different one and use yours for a core?

Do you have other vehicles to use while your truck is down?

 

[flathead31Ford]

I'm all for it being a VB issue, then you won't have to pull the whole trans. That would be great news.

I don't see why a good TC like Ozzy mentions would not work for a stock set up.

In my situation I have a series of matched parts and I kept my triple disc stock stall, it is part of my specific build, so I would not just throw a triple disc at your stock trans and nothing else. Just like you cant just install my exact VB for example with out doing other stuff, but I could get a VB built to what I needed and tell the builder I was keeping the stock TC.

So are you leaning towards getting your VB rebuilt or go with a different one and use yours for a core?

Do you have other vehicles to use while your truck is down?

not sure on a vb, yes i have other transportation. any suggestions? and what are your thoughts on a converter that is going bad,,,wont fix its self. and by now if bad it would have been gone by now

 

[Timd32]

My OD would work and not work for some time before it finally let go completely. Some failures are intermittent.

I think in your case you disabled the lock up external signal and it was still locking up slowly and killing the truck? I forget really.
Does not matter really, a decent place might be able to check your VB.

A place like Goerend might be able to test your VB if you need to know with out just rebuilding.

There are a few places that specialize in these 47RE, but overall a decent trans shop should be able to handle the VB issue.

Personally I would check out this list maybe there is a local place that can help you out.

https://goerend.com/installers/

 

[flathead31Ford]

an update... it turns out it was the converter....replaced it no issues at all..... working great.

 

[Ozymandias]

an update... it turns out it was the converter....replaced it no issues at all..... working great.

What brand you get, just curious.

 

[flathead31Ford]

iam thinking it was a recon by transtar billet cover...

 

[Joe Mc]

Glad you figured it out .Do tell how problem was determined.