Hi - 2010 RAM 2500 With Trans Issues?

**Ayo_Guapo** · 10-13-2023

I'm new to the forum world but not to the Cummins.

I am Glad to be here after a few different tunes I've owned before, and by far, DRD being my favorite, I had to come back and look to purchase one for my 21' HO.

I now have a 2010 2500 with Trans issues before and after the rebuild.

Long Story short, both my trucks haul dump trailers daily.

Anywhere from 3k lbs to 14k lbs.

My 2010 68RFE back in September started getting hot while towing and sometimes staying in gear.

That Trans, on the worst day, saw 260 degrees temp but never slipped.

The truck already has 250k miles of constant towing.

I sent the truck to a local transmission shop that built my buddy's 68RFE, and he was happy with the build.

The truck gets delivered Monday, trans is removed Tuesday, and I'm shown pictures of the clutches Wednesday.

They seemed blueish and burnt; he tells me the trans and truck were all back together and tested Friday afternoon.

He claims when he drove it, it never passed 160 degrees trans temp, but within 30 minutes of my trip back home, trans reached 210 degrees, going ~70ish on the highway.

I take it back to him Monday morning; he calls me back later in the day and wants to put the truck back to stock tune or see if there is a way to tell what the lock-up maybe because he thinks the torque converter is the issue.

I am in massive need of my truck for my business and need help ASAP.

Can anyone comment or probably try to help me diagnose the issue?

I am unsure if it needs a new tune after a rebuild, but I am seeking guidance.

I appreciate any help you can provide.

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**dodgemark** · 10-13-2023

Welcome!!!

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**Bustedgrills** · 10-13-2023

Welcome

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**watersupply189** · 10-13-2023

Originally Posted by Ayo_Guapo

I'm new to the forum world but not to the Cummins.

I am Glad to be here after a few different tunes I've owned before, and by far, DRD being my favorite, I had to come back and look to purchase one for my 21' HO.

I now have a 2010 2500 with Trans issues before and after the rebuild.

Long Story short, both my trucks haul dump trailers daily.

Anywhere from 3k lbs to 14k lbs.

My 2010 68RFE back in September started getting hot while towing and sometimes staying in gear.

That Trans, on the worst day, saw 260 degrees temp but never slipped.

The truck already has 250k miles of constant towing.

I sent the truck to a local transmission shop that built my buddy's 68RFE, and he was happy with the build.

The truck gets delivered Monday, trans is removed Tuesday, and I'm shown pictures of the clutches Wednesday.

They seemed blueish and burnt; he tells me the trans and truck were all back together and tested Friday afternoon.

He claims when he drove it, it never passed 160 degrees trans temp, but within 30 minutes of my trip back home, trans reached 210 degrees, going ~70ish on the highway.

I take it back to him Monday morning; he calls me back later in the day and wants to put the truck back to stock tune or see if there is a way to tell what the lock-up maybe because he thinks the torque converter is the issue.

I am in massive need of my truck for my business and need help ASAP.

Can anyone comment or probably try to help me diagnose the issue?

I am unsure if it needs a new tune after a rebuild, but I am seeking guidance.

I appreciate any help you can provide.

Welcome; we are glad to have you here.

Hopefully someone will jump in here and help you with your issue.

2016 Ram Laramie 3500, G56, 6.7, CC, 4x4

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**AK Bob** · 10-13-2023

Welcome!

Regarding the transmission temperature, I wonder if the thermal bypass valve may be stuck closed.

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**CrazyTrain** · 10-13-2023

Bypass, that would be my guess.

260 is a death nail, for sure.

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**Corkey** · 10-13-2023

@Ayo_Guapo

250k on a stock converter seems a bit high, especially with it towing consistently.

When driving 1-6, does it get stuck in any gear or hesitate or shutter?

Does the temp start to get hot in a specific gear, perhaps 5th or 6th?

I don't think it's a tuning issue if DRD does it.

Did you do a trans-re-learn after the installation?

He should have shown you the CVI numbers or written them down somewhere.

Throwing out possible suggestions for us to help figure it out.

If the converter had hard lockups, your stock input shaft would be weak.

You should be covered by a warranty, though.

Transmissions aren't my strong point, but I'll try to wrap my head around it for you.

For a side note, hook up a charger to your battery, redo your stock TCM file, and then apply the custom.

It very well could be a simple bypass valve issue.

It's sticking closed and not opening up to cool down.

The odd thing is that the installer didn't drive it to operating temps or did small in-town trips after the installation.

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