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Installing reman 6l80 after TC failure

BraydenH
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BraydenH Enthusiast

BraydenH

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I’m having a reman 6l80 shipped to my works shop for my 2014 Silverado and going to swap it out myself and wondering if it’s a good idea or not to take the techm out of my current trans and toss it in reman so I don’t have to have reman trans programmed to my truck when I’m done and if I shouldn’t do that, will I be able to drive it about 15 min or so to dealer to get it programmed?  Lastly other then rear main seal of engine, what would you guys recommend I swap out or inspect while I have transmission out?

CamGTP Senior Enthusiast

CamGTP

Posted
Posted

The TCM has seals and wearable parts, I do not recommend swapping them out.

 

The transmission will not move with a new TCM, you will need it flashed with the correct calibration files before you drive it. So towing it is likely your only option.

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BraydenH Enthusiast

BraydenH

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1 minute ago, CamGTP said:

The TCM has seals and wearable parts, I do not recommend swapping them out.

 

The transmission will not move with a new TCM, you will need it flashed with the correct calibration files before you drive it. So towing it is likely your only option.

Damn…aight….any other good news? lol

newdude Senior Enthusiast

newdude

Posted
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7 hours ago, BraydenH said:

I’m having a reman 6l80 shipped to my works shop for my 2014 Silverado and going to swap it out myself and wondering if it’s a good idea or not to take the techm out of my current trans and toss it in reman so I don’t have to have reman trans programmed to my truck when I’m done and if I shouldn’t do that, will I be able to drive it about 15 min or so to dealer to get it programmed?  Lastly other then rear main seal of engine, what would you guys recommend I swap out or inspect while I have transmission out?

 

 

Replace the transmission thermal bypass valve if you haven't yet and or do the Surecool kit or pill flip to bring your transmission temps down.  Being you have a 2014 if you still have the original lines you'd have to surecool or pill flip as the updated lower temp TBV requires the 2nd design lines.  So technically you could also replace the transmission lines.

 

Oh, and flush the lines and cooler in case any debris was pumped into them.  

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BraydenH Enthusiast

BraydenH

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7 minutes ago, newdude said:

 

 

Replace the transmission thermal bypass valve if you haven't yet and or do the Surecool kit or pill flip to bring your transmission temps down.  Being you have a 2014 if you still have the original lines you'd have to surecool or pill flip as the updated lower temp TBV requires the 2nd design lines.  So technically you could also replace the transmission lines.

 

Oh, and flush the lines and cooler in case any debris was pumped into them.  

100% will do the bypass for cooler temps and was thinking of just running new lines to new cooler and install in front of coolant radiator….thoughts?  I heard it’s near impossible to get all junk out of trans cooler and don’t see it mounted in front of radiator so I’m guessing it’s built into it?

 

newdude Senior Enthusiast

newdude

Posted
Posted (edited)
2 hours ago, BraydenH said:

100% will do the bypass for cooler temps and was thinking of just running new lines to new cooler and install in front of coolant radiator….thoughts?  I heard it’s near impossible to get all junk out of trans cooler and don’t see it mounted in front of radiator so I’m guessing it’s built into it?

 

 

 

2014 has two cooler sections.  The lines go through the main radiator and then to the aux cooler which is the top 1/5th of the AC condenser.  So if you replace, you'd have to replace the radiator and the AC condenser.  

Edited by newdude
BraydenH Enthusiast

BraydenH

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1 minute ago, newdude said:

 

 

2014 has two cooler sections.  The lines go through the main radiator and then to the aux cooler which is the top 1/5th of the AC condenser.  So if you replace, you'd have to replace the radiator and the AC condenser.  

I couldn’t install an aftermarket cooler with new lines?  The only reason why I was thinking that way is because from what vids I’ve seen, even with the fancy big trans fluid flushing machines they say it’s hard to get all metal out of coolers 

 

BraydenH Enthusiast

BraydenH

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9 minutes ago, BraydenH said:

I couldn’t install an aftermarket cooler with new lines?  The only reason why I was thinking that way is because from what vids I’ve seen, even with the fancy big trans fluid flushing machines they say it’s hard to get all metal out of coolers 

 

But yea this is why I’m asking here is because I’ve got a bit of experience with vehicles but most of the knowledge I have about this topic is from YouTube which I’ve been goin hard on about these 3rd gen GM’s for a couple weeks now and haven’t ever had to worry about everything being right on point with a job like this that’s a bit more technical then stuff like this was 10-15 years ago so I’m very appreciative of any and all advice/insight that anyone’s willing to share 

newdude Senior Enthusiast

newdude

Posted
Posted (edited)
20 hours ago, BraydenH said:

I couldn’t install an aftermarket cooler with new lines?  The only reason why I was thinking that way is because from what vids I’ve seen, even with the fancy big trans fluid flushing machines they say it’s hard to get all metal out of coolers 

 

 

 

I assume you are looking at something like the Mishimoto cooler?  If so, that's an additional cooler in the system and does not replace the factory setup.

 

So you'd still have to replace the radiator and condenser if you wanted to 100% eliminate possible metal left in there, and then you could add the Mishimoto cooler on addition.  

Edited by newdude
BraydenH Enthusiast

BraydenH

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1 minute ago, newdude said:

 

 

I assume you are looking at something like the Mishimoto cooler?  If so, that's an additional cooler in the system and does not replace the factory setup.

 

So you'd still have to replace the radiator and condenser if you wanted to 100% eliminate possible metal left in there, and then you could add the Mishimoto cooler on addition.  

 

1 minute ago, newdude said:

 

 

I assume you are looking at something like the Mishimoto cooler?  If so, that's an additional cooler in the system and does not replace the factory setup.

 

So you'd still have to replace the radiator and condenser if you wanted to 100% eliminate possible metal left in there, and then you could add the Mishimoto cooler on addition.  

 

1 minute ago, newdude said:

 

 

I assume you are looking at something like the Mishimoto cooler?  If so, that's an additional cooler in the system and does not replace the factory setup.

 

So you'd still have to replace the radiator and condenser if you wanted to 100% eliminate possible metal left in there, and then you could add the Mishimoto cooler on addition.  

Aight. How many cans of trans fluid flush do you think a guy would need to be safe flushing it back and forth a few times 

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