Trans thermostat part number?

[Mozzer]

I tried doing the thermostat flip but couldn't get it out, the c clip came out ok but there was some corrosion stopping the guts coming out. Want to buy a new complete replacement with the block to swap out but can't seem to find the part listed.

 

Anyone have a parts diagram? Can only find lists on the parts sites.

 

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[Grumpy Bear]

Take you VIN to the dealership and he will order the correct part. 

[Mozzer]

Take you VIN to the dealership and he will order the correct part. 

Was hoping to avoid that as it's a 45 minute drive to dealership so if I can't do any other way I guess it will have to wait for another couple of weeks.


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[rav3]

I had the same issue when I did the "flip" on mine. Remove it from the truck, spray some penetration fluid on the C-Clip area, remove the C-clip & take pliers & twist the aluminum top using the standing boss on tip. It will come loose & out. Before assembling, clean top & housing block with some Scotch Brite, run the C-Clip over some fine sand paper to remove any corrosion or just replace it. Put it back together BUT make sure the C-clip goes back into the groove all the way. If you don't , others have had it pop back out. Spin the C-Clip in the home position to verify it's in the groove good. Then reinstall on the transmission.

 

Here's a link to what I found for P/N https://www.gmpartsnow.com/oem-parts/gm-tube-assembly-84036742?c=Zz1jb29saW5nLXN5c3RlbSZzPXRyYW5zLW9pbC1jb29sZXImbD0xJm49QXNzZW1ibGllcyBQYWdlJmE9Y2hldnJvbGV0Jm89c2lsdmVyYWRvLTE1MDAmeT0yMDE3JnQ9bHR6JmU9NS0zbC12OC1nYXM%3D

[It's Tim]

32 minutes ago, rav3 said:

I had the same issue when I did the "flip" on mine. Remove it from the truck, spray some penetration fluid on the C-Clip area, remove the C-clip & take pliers & twist the aluminum top using the standing boss on tip. It will come loose & out. Before assembling, clean top & housing block with some Scotch Brite, run the C-Clip over some fine sand paper to remove any corrosion or just replace it. Put it back together BUT make sure the C-clip goes back into the groove all the way. If you don't , others have had it pop back out. Spin the C-Clip in the home position to verify it's in the groove good. Then reinstall on the transmission.

 

Here's a link to what I found for P/N https://www.gmpartsnow.com/oem-parts/gm-tube-assembly-84036742?c=Zz1jb29saW5nLXN5c3RlbSZzPXRyYW5zLW9pbC1jb29sZXImbD0xJm49QXNzZW1ibGllcyBQYWdlJmE9Y2hldnJvbGV0Jm89c2lsdmVyYWRvLTE1MDAmeT0yMDE3JnQ9bHR6JmU9NS0zbC12OC1nYXM%3D

If the OP destroys the original trying to "fix" it he'll really be without a paddle. (or a truck for that matter too.)

[14burrito]

This is what I bought for my 2019 Tahoe 6L80. I wanted to have two on hand just in case, so I wouldn't have the vehicle out of commission. My personal recommendation would be to do the thermostat exchange on a "cold" vehicle, so first thing in the morning after sitting overnight. This is just my paranoid self, I would rather work on materials and deal with tightening/torque specs at amb vs elevated temps.

 

By-Pass Valve – 48.76 -

13511136

6 speed.

https://www.gmpartsdirect.com/oem-parts/gm-by-pass-valve-13511136/?c=Zz1jb29saW5nLXN5c3RlbSZzPXRyYW5zLW9pbC1jb29sZXImaT1HQzE1MTE1NSZyPTMmYT1jaGV2cm9sZXQmbz10YWhvZSZ5PTIwMTkmdD1sdCZlPTUtM2wtdjgtZmxleA%3D%3D

 

Found it on Ebay from a local vendor for under $35 IIRC

Edited October 14, 2020 by 14burrito

[rav3]

19 minutes ago, It's Tim said:

If the OP destroys the original trying to "fix" it he'll really be without a paddle. (or a truck for that matter too.)

This statement is true for any owner making this modification and only proceed depending on their confidence level & tools available to them. I wouldn't recommend it to a novice that does NOT have the tools or confidence to preform this modification. All I was doing was sharing a similar situation that I experienced hoping that iy would help him. If he wants to buy a spare back up set, that's surly his option. That's why I gave a link for the part that I thought he was searching for. 

[Mozzer]

This statement is true for any owner making this modification and only proceed depending on their confidence level & tools available to them. I wouldn't recommend it to a novice that does NOT have the tools or confidence to preform this modification. All I was doing was sharing a similar situation that I experienced hoping that iy would help him. If he wants to buy a spare back up set, that's surly his option. That's why I gave a link for the part that I thought he was searching for. 

Thanks for the info. I did soak it with penetrating fluid but didn't have the time to leave soaking for a few hours so would rather have the spare & yes the c clip was a bugger to get seated properly.

Now I know what the parts site calls it 'bypass valve' so that should help with sourcing, thanks very much.


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[Grumpy Bear]

3 hours ago, Mozzer said:

Was hoping to avoid that as it's a 45 minute drive to dealership so if I can't do any other way I guess it will have to wait for another couple of weeks.


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Understood. I found when I did mine that there is more than one depending on year and VIN. The hoses attach by a few different means. Mine didn't use clips but a plate and bolt setup. VIN is important. A random part number may not work. That was/is my concern. 

[newdude]

5 hours ago, Mozzer said:

 

I tried doing the thermostat flip but couldn't get it out, the c clip came out ok but there was some corrosion stopping the guts coming out. Want to buy a new complete replacement with the block to swap out but can't seem to find the part listed.

 

Anyone have a parts diagram? Can only find lists on the parts sites.

 

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Depends on how the lines are attached to the thermostat.  When you removed the thermostat, did the lines un-bolt from it with a plate holding them down?  Or were the lines quick connected into the thermostat? 

Edited October 14, 2020 by newdude

[Mozzer]

Understood. I found when I did mine that there is more than one depending on year and VIN. The hoses attach by a few different means. Mine didn't use clips but a plate and bolt setup. VIN is important. A random part number may not work. That was/is my concern. 

Ok, thanks very much for the feedback.

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[newdude]

2 hours ago, Mozzer said:

Thanks for the info. I did soak it with penetrating fluid but didn't have the time to leave soaking for a few hours so would rather have the spare & yes the c clip was a bugger to get seated properly.

Now I know what the parts site calls it 'bypass valve' so that should help with sourcing, thanks very much.


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Just double replying.  Not sure if you saw my other post but I've got the ? again here as well.  

 

Quote

Depends on how the lines are attached to the thermostat.  When you removed the thermostat, did the lines un-bolt from it with a plate holding them down?  Or were the lines quick connected into the thermostat? 

 

[Mozzer]

Here's what I've got.

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[Grumpy Bear]

1 hour ago, Mozzer said:

Here's what I've got.

 

That's the quick connect style. My part number will help eliminate a choice. This number is for the plate and bolt style my truck has: GM 13511136 The other GM number is then yours. Hope that makes sense. 

[Mozzer]

That's the quick connect style. My part number will help eliminate a choice. This number is for the plate and bolt style my truck has: GM 13511136 The other GM number is then yours. Hope that makes sense. 

Great thank you very much.

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