PPE Trans Cooler Installation 2022 Silverado LM2 Duramax 3.0

[@j_white1305]

Your videos and responses on FB are a amazing contribution to the ownership community, thanks bud! Doing my cooler install this afternoon on a Yukon, wish me luck hah.

[@DemonWorks]

Thank you ! You won’t need any luck, the install will go smoothly! Let me know how it goes!

[@bigboyblue56]

Found a trick to getting the driver side line to snap in easy. Once you have the cooler in place, keep the single 10mm bolt loose. Slide the cooler out of the tab on the driver side and it gives you more play and angles to slide snap the line in. Once the line is in, then you can slide the cooler back in the tab, then tighten the 10mm.

[@mattspalla6427]

How much fluid did you have to add?

[@lukehayvaz9194]

I do not tow often but when I do it is usually 4wheelers and a side by side. I have seen high transmission temperatures when pulling steep gravel grades at low speeds in 4wd here in Idaho. I have stopped to let the transmission cool several times. The first time I stopped was at 232 degrees.

[@ryanlogan2911]

Just installed today. Way impressed with how fast temp drops after you get out of a load.

[@normalchristian3963]

I tow a 6500 Lbs travel trailer at 65 mph with 2020 Silverado 1500 RST Duramax with trailering package and have not experienced any transmission overheating problems.

[@DemonWorks]

I’ve never had transmission overheating problems either. There are times where I need to tow across the desert midsummer and the peace of mind this will bring me is well worth it.

[@lukehayvaz9194]

I have experienced transmission overheating problems with mine. Both times we’re pulling a trailer with a Honda pioneer on it. Going up steep Idaho grade, gravel, slow and 4wd. Had to stop twice to let cool down.

[@Italianborn]

If i tow daily i would consider it but even then who knows if PPE just made a bigger radiator without counting anything else or if they took consideration of other facts..I’m wondering if nothing will change with this mod, like coolant flow ratio, and transmission cooling ratio when cold/hot temps apply..there’s a bunch of engineers working on making an engine for good reason..

[@robertwotring7318]

If you maintain the stock thermostat bypass, cold fluid shouldn’t be effected. I’m not sold on the PPE bypass as too cold a fluid is bad as well. In town/short trips you want some heat. Towing when the thermostat is open this thing should see more consistent temps and hold a little more fluid too.

[@DemonWorks]

I agree with the engineering around the factory unit, but I also don't leave well enough alone. PPE has been around the diesel game a very long time. Very High quality products and while I don't have the data, I am confident in their R&D / Engineering.

[@robertwotring7318]

@@DemonWorks what’s the price on the cooler? I’ll probably knock it out over the winter

[@joshuaplace9095]

Did you add the PPE thermal bypass valve? Curious if you think it’s beneficial or not. Or just what your thoughts are on it. Getting ready install the cooler

[@ryanlogan2911]

PPE just told me they are going to have an intercooler hitting the market for the 3.0 Duramax at the SEMA convention. 10-10-22 was told this news by Charles @ PPE.

[@DemonWorks]

Valid source and that is the info I have as well.

[@lukehayvaz9194]

I’ll buy

[@gchavez43096]

Am I able to put this on my 5.3 truck with a 8 speed transmission

[@DemonWorks]

it will not work in your application, unfortunately.

[@antonioso17]

If you had to choose between the PPE larger transmission pan or the cooler which would you recommend?

[@The71chevyman]

I was wondering if you ran into any issues with this install. I installed mine before watching this video and I removed the whole front grill and shutter assembly. Before reinstalling everything I started it to make sure there wasn't any leaks and now I have the dreaded check engine light. Is it possible that I need to reprogram or reset the active shutters?

[@DemonWorks]

Zero issues, this cooler has also been installed on 4 different trucks. I am assuming maybe your connector for the shutters is not plugged in all of the way. Double check that connector. No relearn needed.

[@nabatron21]

Do you need a tune for any of these mods you add to the duramax? Tranny cooler, intake, bigger pans? Ect….

[@ZampostOk]

I never tow anything - what’s a normal trans temp on a 100F day. Also when at regen- would a temp rise?

[@DemonWorks]

I like 165-190

[@mooseman3136]

Were those temps with or without the cooler thermostat delete? I live in a very cold climate in winter and if I also have to delete the thermostat, it could void my warranty. I could probably get away with just the bigger PPE cooler.

[@DemonWorks]

Without. Get just the cooler and you are set!

[@MrSmurf459]

I know this would help with towing, not sure if this is too much to ask but can you provide on what mods you’d use to improve towing performance?

[@Jim.Christy]

By installing the new cooler, did you have to add more transmission fluid? If so, how much?

[@DemonWorks]

less than 1/4 quart.

[@bhouse4322]

How much more coolant did it require? Did you have to drain the system before the swap?

[@DemonWorks]

I added less than half a quart of trans fluid - I did not drain the system at all, just what dripped during removal. I will have a video up at a later time showing how to fill the transmission.

[@hightide9513]

@@DemonWorks since the driver side fitting is pretty high on the cooler do you think it’s possible to add it before you hook up the fittings?

[@DemonWorks]

@@hightide9513 I installed that fitting on to the line then threaded it into the cooler. That’s risky though, don’t want to cross thread the fitting/cooler.

[@Italianborn]

@@DemonWorks don’t u have to purge it in case of air bubble in the system ?

[@DemonWorks]

@@Italianborn no purging, just run it and the trans pumps fluid through

[@juliannedeoglo2894]

Would this be exactly the same for a 2023 suburban lm2? I mean it’s the same engine just different front end but I’m sure that wouldn’t be a problem and pretty sure the holes and bolts are in the same position and how much more fluid do I need to add and where

[@DemonWorks]

No, SUV’s have a different style so this wouldn’t work.

[@juliannedeoglo2894]

Would this be exactly the same for a 2023 suburban lm2? I mean it’s the same engine just different front end but I’m sure that wouldn’t be a problem and pretty sure the holes and bolts are in the same position

[@jarrettbarfield4279]

At what temperature does the transmission start to cause damage or reduce the life of the transmission? I have a 2024 3.0 @DemonWorks

[@DemonWorks]

There isn't a specific temp that is the cliff, it's more about maintaining temps as best as possible. the higher they go, the tougher it is on parts. I don't like anything above 200, even though that is still "safe"

[@omarhernandez7907]

What’s the operating temp on this trans? Under normal conditions

[@DemonWorks]

The transmission itself, all over the place. 145 in the gas trucks and cars all the way to 220 in the diesels. This same fluid is used in the 2500/3500 10 speed and temps are in the 145-165 area for them.

[@MauriceJonesJr]

Do you think you could just unscrew the fittings and leave them attached to the cooler lines when removing the OEM cooler and installing the PPE?

[@DemonWorks]

That’s how I installed on the driver side. Very risky, as one could easily cross thread them.

[@4961Studebaker]

Since your talking temps What’s the GM range on coolant I see 220 regularly on my Banks I dash (I’ve watched your oil temp video). Oil range? I typically see 225 +- 5

[@DemonWorks]

My banks doesn’t work on the new truck so I can’t see temps, but based on the dash, it’s considerably cooler than previous years.

[@4961Studebaker]

@@DemonWorks weird. I see oil and coolant temp on refreshed at4. But no egr temps or any pressures. Next update can’t come soon enough.

[@DemonWorks]

@@4961Studebaker if you saw that, then I should be able to as well. Sounds like I need to dined some time with it again to see if it works.

[@ryanlogan2911]

I have a 21 AT4 and monitoring with the Idash I have seen coolant hit 229 & oil hit 265 while towing. The intelligent cooling system doesn’t seem very intelligent.

[@DemonWorks]

I have a towing video I did on the previous truck that shows idash temps. I did not monitor trans at that time though.

[@seankellogg6154]

Will this same cooler be a direct replacement for the 2021 Yukon xl 3.0 duramax?

[@DemonWorks]

It will not, different fittings.

[@j_white1305]

​@@DemonWorks Meaning the ACDelco Part # 84240288 fittings are different? PPE told me it was 124068000 for the cooler on a 2022 Yukon 3.0.

[@DemonWorks]

@@j_white1305that part number is correct for the SUV’s. Install will be very similar but yes the fittings are a little different. Enjoy the new cooler!!

[@j_white1305]

@@DemonWorks Thanks, I was going to buy extra fittings for the backup clips. Hopefully my butter fingers wont fail me.

[@ralphcatalano8288]

Did you ever get your paint job fixed on your truck

[@DemonWorks]

Nope, still falling off and unsightly every time I look at it.

[@jmg_2_slow74]

So it does fit the 2020 Denali 6.2 ?

[@nickchesko1719]

Did you add any transmission fluid when you installed the PPE Trans cooler? If so how much and where did you fill it? I just purchased one and just wondering if you need to add more.

[@DemonWorks]

just under 1/4 quart.

[@blancs3030]

Is there a certain temp the transmission needs to be work correctly?

[@DemonWorks]

158 is when the valve opens up to allow fluid to flow though the cooler

[@joecavallio1293]

Does it increase your ECT? Extra liquid needed?

[@DemonWorks]

No change to engine coolant temps, still runs really high. Extra trans fluid is a small change.

[@honkytonkmark]

I dont tow really at all but do have other mods done to my Duramax. Is the Tranny cooler a benefit even if not towing? Is it necessary? Thanks

[@DemonWorks]

I'm a strong believer in cool transmission fluid temps, Anything I can do to keep them down within operating temp helps. My 20/21 and 22.5 all run much cooler than my 23.

[@ericjenkins3424]

Did you see any MPG gain when putting the stock filter back in?

[@DemonWorks]

Yes, the truck has been getting great mileage. 24-28mpg daily. I used to get like 21/22 daily. However, I’m also not taking the kids to school in the am and that was about 10 minutes of added traffic.

[@ryanlogan2911]

What spooks me is towing up a hill or in the wind with my 21 AT4 the engine coolant has hit as high as 229 and oil 265. Trans has never gone over 205 stock. I did install the PPE trans pan and thermostat but the engine is what bothers me. I wish the “intelligent” cooling system would be more intelligent while towing. Cmon Motorops for a delete tune…..

[@DemonWorks]

A delete won’t help you, but I know exactly what you mean on those engine and oil temps. I experienced the same on my first 3.0 then I bought each model year and the temps are cooler on each model year. It’s definitely a tuning thing with the coolant flow valve, in my opinion.

[@jacobkrzyzek5777]

Have you installed the PPE trans pan and the bypass valve yet?

[@DemonWorks]

I have done the pan but not the bypass valve.

[@jacobkrzyzek5777]

@@DemonWorks was the pan done before the cooler? As when you showed your beginning trans temps?

[@DemonWorks]

@@jacobkrzyzek5777 I did the pan before, yes. Ran the truck for a little over a week with just the pan installed.

[@ryanlogan2911]

@@DemonWorks be careful with the bypass valve. The magnet drain on mine which I installed on my AT4 3.0 was loose and sprayed oil everywhere. I installed at the same time as the larger pan. Cooler is next project.

[@DemonWorks]

@@ryanlogan2911 thanks for the heads up !

[@marcbrown1312]

Just wanted to know will these up grades viod your warranty?

[@DemonWorks]

They shouldn’t, but incorrect installation or incorrect fluid could.

[@ryanlogan2911]

Hey bro what is the GM PN for the end fittings to the lines that you purchased separately.

[@ryanlogan2911]

Bump….

[@ryanlogan2911]

84240288

[@DemonWorks]

@@ryanlogan2911 84240288 Thanks for watching !

[@misaelamayo1139]

I need this ahha

[@DemonWorks]

It's a great part !

[@gangelone999]

i called my chevy dealer and asked if this would void my warranty. He said yes. Is that true?

[@DemonWorks]

It’s not true, but you probably spoke with a service advisor. There’s so much to these warranty questions. Basically, if you are worried, you should just play it safe.

[@PlayWaves1]

Legally they can't void your warranty unless the aftermarket part directly contributed to the problem.

[@chrishisted1851]

Does the 10L80 run hot while towing?

[@DemonWorks]

I have not had it run hot, but it seems to be a very common question on trans temps when I do any kind of towing video. For me, this is a peace of mind upgrade.

[@2hndhnd]

In comparison, I have a Ram 2500 Cummins that when towing 14k my trans temp seldom rises above 140° even in this Texas heat. Around town empty, my 2022 GMC 3.0 is between 198°-200° constantly

[@DemonWorks]

@@2hndhnd I think that may be illegal to have a Cummins and a Duramax. Thanks for the comparison! Interesting how the 2 systems are so different in temps.

[@BrianKrahmer]

last year, i did a ton of towing, up to about 8k pounds, CO mountains, etc, never saw it go much over 200

[@TheLumberZak]

Do you have a pan install video? Im stuck on how to refill this sucker

[@ryanlogan2911]

I did the pan. It’s a plug you pump oil into above the pan. It’s subjective on how full you fill it.

[@MrSmurf459]

Also would this void the warranty?