allison no workie

well my cat runs great but my tranny no workie so pulled the little inspection plate off the bottom and flywheel is spinning but the torque converter is not some thing on flexplat must be broken anyone seen this

The bolts back out of them. They did not put locktite on them. There is a thread on this.

https://www.youtube.com/watch?v=jnKev0FuLCc

all bolts in place but converter not turning

If you can start the truck then the trans is connected to the engine. Did you check the fluid level?

when engine is running torque conv. is not turning

mogger7 said:

when engine is running torque conv. is not turning

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well then i am pretty sure the bolts you say are there are either broke off or not there Those bolts hold the flywheel to torque converter if the flexplate is spinning and the torque converter is not then they arent attached as should be.

bolts are there and tight at least 6 of them for sure

can you take a video of the area of your inspection plate with the truck running then because they are connected by bolts one cant spin without the other unless they arent hooked up. Upload it to youtube or email it to me at simpson.wes.1985@gmail.com and i can host it and post it here.

Even if the torque converter would not be bolted on, then the flex plate would still spin. Or the truck would not start.
Not sure what anyone would want to see in a video that one couldnt figure out in ones head.

Can you put a prybar through the inspection hole and while holding the torque converter try and mone the flexplate with the bar and see what happens. Does the converter move?
You'd do all of this with engine off, of course.

We can only see half the bolts that hold the assembly together. Half bolt the plate to the flywheel/ringgear assembly and the other half are up between the plate and flywheel that bolt the flex plate to the torque converter adapter ring...

page 8-1 in the 24p manual has the exploded views of the two possible assemblies...

pryed on converter today and there is some movement without ring gear moving owner of local truck shop said flex plt broke most likely he has seen it before can be repaired by moving tranny back and not dropping it to the floor (so he said) I tried to find a parts breakdown pic showing parts lined up in a rol to figure out what he is talkn about pryor to me tearing into it this all started with tranny not working when i bought it so rot it running and after a few min . running there is a clunking and a vibration or hard shuttering so i pulled the inspection plt at botom and was hoping to find the bolts missing or sheared off but there in and tight

I don't have the manual

my experience with lmtv transmissions is that you will mot move it back far enough to gain access to the flex coupling. The trans slides back a few inches than will have to be lowered and tilted to move it back than leveled again. I was quite happy to find my flywheel ring gear was good and that I needed only a starter drive. As I remembered what a pain it was to pull the transmissions out of those trucks.

If the truck starts then the torque converter module is bolted up. I don’t think it’s a matter of broken bolts somewhere. Something inside the converter assembly itself is damaged.

mogger7 said:

I don't have the manual

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All the manuals are available here on this site, it is the first section at the top of the main page look under current conflict vehicles...

Suprman said:

View attachment 746779View attachment 746780If the truck starts then the torque converter module is bolted up. I don’t think it’s a matter of broken bolts somewhere. Something inside the converter assembly itself is damaged.

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thank you

Ronmar said:

All the manuals are available here on this site, it is the first section at the top of the main page look under current conflict vehicles...

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If the person is on accessing this board from their phone or is in the filed , it can be difficult to download a PDF

In the trans pic. Maybe if all the black bolts are broken off it would cause the symptoms. Prob easier to pull the engine forward than the trans back.

I heard about a case where the pump in the transmission failed . I think the symptoms were similar. I think that fellas truck has been towed over a period of time with all 4 wheels on the ground and driveshafts connected