I've installed the PPE bypass on my 2021 LM2. The hottest temp I've ever seen was 193 while driving in heavy traffic in the Orlando area where I live. I usually see Temps in the 160's to low 180's range. I haven't seen a temp above 199 degrees since since removing the OEM bypass in favor of the PPE unit. I don't tow anything with the truck, I do load the bed with heavy objects from time to time.
I live in Florida. Average temp is about 60-70 in winter and summer is well above 90. I did both the trans cooler and bypass and my average temp is between 140-150 degrees now, I did not like the factor 198-210 trans temp degree especially being down here, definitely worth the money.
190 is way too hot for a transmission temperature I have seen thousands of transmission failures due to these kinds of high temperatures I’ve never seen a single transmission failure due to running them cold All of GM’s newer three-quarter ton trucks and up run at 143 to 155° transmission temperature using the same exact ULV transmission fluid as what’s used in the half ton 3.0L Duramax trucks
I have a LM2 on a 23 Suburban I installed the PPE valve early in the Summer and max temps dropped from 215 to 190 which is great but now that it is cooling off in Michigan it takes 20 miles to get up to 150 or so what would you estimate a low operating temperature should be? Maybe put oem for winter? Thanks for the great vids
I have a 18 5.3 Silverado with the 8L90 and it constantly ran 190’s (I live in the desert). After I bypassed it, it runs 145 max even in triple digit temps. All for “fuel economy”. So stupid.
I just bought a 2020 with the LM2. Live in TX and it's always at 210 when I am not towing. Went to buy this part and it's now showing a 404 not available and I can't find it on their page :( I love the truck and I am able to do everything I intended, but these 100+ degree days and the trans temps are making me nervous.
For anyone wondering what this bypass valve will do without any other mods: I have a 2023 LZ0 Trail Boss and the operating ATF temp was 198. After installing just this bypass valve, I couldn't get it above 155. That's with the stock cooler and pan. Be sure to top off your ATF after changing it, you lose quite a bit of fluid.
Love the channel and I’ve learn so much thank you. Do you recommend I get both since I live in AZ and our sumner heat is definitely above the 100 degrees in the summer?
I have the PPE Pan, Cooler and Bypass in. In the winter while not towing my Trans temp is 100-115 def F. I may put in the improved Racing thermostat in to run at 140 deg F.
@@ryanlogan2911 It does, but it's made for the lines with the manifold on the side of the transmission, which only the gas engines have. The 3.0 is the only one with the valve on the side of the engine.
In your opinion what would be your first mod in looking for lower temps on your transmission? I am thinking I will go wit this bypass valve replacement from ppe. I am not a fan of the factory valve restricting the fluid flow. I would love to know your thoughts Thanks.
wow that really made a big difference my LZ0 is stock if i added in just that value would that be worth it or do i need to do that cooler also i do not tow that often but like that it runs cooler do you have a discount code for PPE
Do you prefer the LM2 or the LZO? Wondering if I should by the older one or the newer one. I appreciate your videos. I have learned a lot from watching your videos. Look forward to hopefully hear back from you. Thank you and have a great summer.
I prefer the LZ0 but the LM2 is superb as well. i had a 20/21 and 22.5 and they all did the job well ! You really cannot go wrong with any, just choose the color and interior you like and you will be fine.
I have the lm2 and I have the ppe cooler. I just towed a 6k camper avg 70mph with outside temp of 70-75 degrees. Never went over 194. When it hit 194, it would drop to about 187. I did buy the bypass valve but I’m just not sure if I want to install because I live in Boston Mass area and we get all kind of weather.
I planned on removing mine when it got colder out. Going to continue driving to see how long it takes to get up to temp then decide next step. Your temps sound great!
@@DemonWorks I think the cooler and the bypass is a little to much if your in a hot cold climate. If you live in a area that is always hot. Maybe both will work.
@@b18civicsi00 i absolutely agree. I was holding back for a future video, but I will just come out and say right now… I think, for my use, the deep pan and trans cooler with factory bypass valve is the way I will go.
This is great content. I stumbled across the STL020 kit from Superior Transmission parts a while back and one vendor claims it's compatible with the 10L80 in the newer 2021's. Now that I see that the cooling packages different between the LM2s and LZ0s it probably won't fit my 2020. I liked the concept of it though because (temperature discussion aside) it maintains the safety protection of bypassing a plugged cooler which must be a feature of the stock bypass valve?
I saw that kit, I believe it's designed for the built in bypass at the line manifold on the side of the trans (not our design) but unsure if it will also fit our block.
@@DemonWorks Looks like it would fit the block, but not work. I emailed support at Superior Transmission and they replied instantly. They said that kit wouldn't work because the blow off spring is too heavy (they claim there is only 25 psi being sent to the cooler) so they need to make some modifications so that it works properly. They did say they were working on making it compatible but wasn't able to give an ETA.
@@valmasj hey that’s great info! I appreciate you sharing that with myself and everyone else that reads this. I also appreciate companies that respond quickly as well as listen to the customers questions then work to resolving the issue. Thanks for sharing !!!
At first I thought maybe the trans temp sensors were inaccurate but after your installation it seems like a major drop so maybe its not that far off but it would be great to varify! I wonder if you could list all the stuff you have added (cooler etc) to improve your transmission temps. Did the larger cooler really help? Lots of helpful info.
Hey! The trans cooler took my temps down from 210 daily driving to 199 no matter what I am doing, daily driving or towing. Next I’m installing the ppe deep pan and going back to stick with this valve.
Has anyone with the ppe bypass, larger cooler, or larger pan experienced trans failure of any kind? Seems like high temp is killing the pump idler gear bearing.
Depends on where you are and what you are using the truck for. I’d say if you are in a warm climate, the bypass valve is the way to go. If you are somewhere that gets really cold, I don’t t think the valve is a great idea. I’m in that category so I’m running the trans cooler with the deep pan. Will be toying with the stock valve real soon though.
So going by your diagram of the transmission fluid layout, won't the cooler that receives engine coolant help with maintaining an idea temp for trans fluid if the bypass, deep pan, and PPE cooler are used under higher load conditions?@@DemonWorks
@@huntsman12g that cooler receives coolant flow from the coolant valve, helps to get the trans temp up quickly. I do not know the temp in which that valve opens or closes though.
I live in North Dakota and winter months the temp can get to -20 to-30 below, If i install this will the transmission temp stay to cool for the winter months.. I do tow with it in the summer and so far the transmission has temps around that 195-205 degrees, thanks
I cancelled my order for the PPE bypass after watching this. 75 degree drop is too much, I can just imagine in the winter time..Yikes! I still haven't done the pan but that is definitely on the to-do-list. Just wish I could find a shop to do the engine oil pan, made a few inquires but all declined.
According to some guys' anecdote in a GM forum, it isn't an issue in the winter because the truck will close down the the grill shutters to get the trans temp to a reasonable operating temperature. I ordered one of these and will be see how it goes next week while we still have temps in the 30's where I'm at. Thought about just doing the larger trans cooler but that alone doesn't seem adequate and both seem overkill.
This is so interesting to hear. I have a 2019 AT4 with the 6.2 and my transmission operating temps are drastically lower. Just got back from Glamis towing my toy hauler with rzr (10k pounds) and I never saw it go higher then 185 degrees. I wonder if this is only a problem with the diesel trucks..
I have a 2020 at4 6.2 And noticed your comment so you got the ppe bypass valve for the 3.0? And worked on your 6.2?? Plz let me know because I want to get it just wasn’t sure if it would work although they have the same transmission
I am installing the deep pan today. My prior pan video was for a different truck I had. I will be pulling the Poe valve off and back to stock, then gave the ppe pan and cooler. Will note the temps
@@Jim.Christy prior temps were 160-175 on the prior trucks. That’s why my LZ0 temps are so interesting. I’m hoping to get those numbers again, while doing this video, I saw the valve is open by 170. In theory, we should be able to maintain that 170-175 but since we are not, I’m thinking it’s a low flow situation. The additional fluid in the pan can help with temperature management. I have documented every change and temperature with this truck so I’m hoping to have all of the data needed to help everyone decide what they need/want.
I haven't been able to find anything definitive on this specific transmission. The ford version calls for high temps, but even though this platform was built with Ford, I don't trust their side since their cars overheat the trans regularly on the track. I have always been under the teachings of the trans temp is typically 160-175. GM calls for 158 degrees when checking the fluid level So I feel that is the area of "good" up to 190 degrees. My prior LM2 trucks ran at 160-170 degrees. Stock 10 speed gas trucks have been shown to run in the 150-160's. So I would say operating above 150 is the minimum. Yes, it can be "too cold" and that is where I waited to install this until ambient temps picked up. i will monitor my temps over the coming weeks.
Hope that doesn’t affect the warranty because I was thinking about ordering this valve just don’t understand why a daily driver temp needs to be in the 180-190 heat kills clutch packs
Looks like a significant change, but like the other comment said it almost feels like its doing too good of a job when the transmission isnt being worked hard. Would be nice to see an option with a 160-170 degree thermostat, allowing for better flow when opened but also keeping flow out of the radiator when you want it to get up to temp.
Based on the testing in the video, the stock unit was wide open at 170 degrees. So, this open valve may be too open for me, I now know the stock valve will be open by 170 and that’s fine but why am I still getting as high as I am is the next question. I’m going to put in the deep pan next with the stock valve and see what that does for me. Stay tuned!
@@DemonWorks nice, I suspect the stock valve just doesnt flow much through the thermostat, so even if fully open it's only getting a relatively small portion of the fluid out to the radiator. Looking forward to all the testing. This will be super helpful for those with either generation engine.
This gives me vibes back to the old days of running no thermostat on our cars when they ran too hot. Not sure if this is the best idea because there’s always a sweet spot of where the temp should be at. Too cold isn’t a good thing
Has PPE or anyone come up with a valve for the 2023 LZO bypass valves that only have 3 lines going to them. One of the cooler ports is blocked and that line goes directly to the cooler. Have seen 207° on mine towing a 5k boat on a 90° day
In the LZ0 trucks this ppe block eliminates the engine cooler or transmission heater this is what I’m calling it. Because of the 3 line setup on the factory valve block. This is why the fluid won’t heat up because the fluid is not going through the engine cooler/ heater
It actually doesn't eliminate anything in the cooler like what you are saying. It's still going through that cooler, it's just not circulating through it and looping at the bypass valve. The system would loop the fluid through multiple it's at 196 then allow some flow through the cooler. this just eliminated the multiple loops.
I’m looking at installing a lighter spring for the factory valve and see how that works. I want the fluid to heat up fast but keep the temperature around 150°
Well the lighter spring in factory valve didn’t do much different maybe 5° less. Now it’s running around 190° that sucks and running the PPE block sucks too running at 120° and it takes forever to get there. The LM2 setup was perfect for this PPE block I guess GM found a way to fuck it up with this LZ0. If it had a different pill like a 140-150° in the factory valve it might work.
@@DemonWorksCorrect me if I'm wrong but it seems like the deep pan and cooler drop temps 25-35 degrees where as the bypass drops them around 40-50 degrees. To me, it makes the most sense to just run the bypass since it gets operating temps around 160 degrees and because it's cheap and easy to install. Have you ever ran the bypass exclusively?
I was looking at that and noticed the 6.2. Has the 10L80 as well Im wondering if that ppe will work on the 6.2 Even tho its for the 3.0 but they both have the 10L80
in 30 degree ambient temps i was hitting 210 degrees just driving. I have talked with a bunch of people and temps all vary but it seems the LZ0 on average, runs hotter trans temps. All of my LM2's were much lower
Not yet, need to be able to get it up in temp (longer driving). The amount lost was minimal, so I’m not concerned right now. It will get topped off in the near future and I do use a pump device for that.
@@DemonWorks can you make an update video about the highest temperatures you're running in daily driving? My LM2 gets up to about 190. Driving in the city. Stop and go traffic. I'm looking for something to lower those temperatures down to about 150 or so
I agree, That's why I waited until ambient temps warmed up before installing. My 5 minute test drive also doesn't show real numbers, my daily driving temps over the. next few days will be monitored...
I've installed the PPE bypass on my 2021 LM2. The hottest temp I've ever seen was 193 while driving in heavy traffic in the Orlando area where I live. I usually see Temps in the 160's to low 180's range. I haven't seen a temp above 199 degrees since since removing the OEM bypass in favor of the PPE unit. I don't tow anything with the truck, I do load the bed with heavy objects from time to time.
I live in Florida. Average temp is about 60-70 in winter and summer is well above 90. I did both the trans cooler and bypass and my average temp is between 140-150 degrees now, I did not like the factor 198-210 trans temp degree especially being down here, definitely worth the money.
190 is way too hot for a transmission temperature I have seen thousands of transmission failures due to these kinds of high temperatures I’ve never seen a single transmission failure due to running them cold
All of GM’s newer three-quarter ton trucks and up run at 143 to 155° transmission temperature using the same exact ULV transmission fluid as what’s used in the half ton 3.0L Duramax trucks
I have a LM2 on a 23 Suburban I installed the PPE valve early in the Summer and max temps dropped from 215 to 190 which is great but now that it is cooling off in Michigan it takes 20 miles to get up to 150 or so what would you estimate a low operating temperature should be? Maybe put oem for winter? Thanks for the great vids
Installed Ppe bypass block and max 163 trans temp was 198 to 205 before install. Block only and stock cooler
That’s good stuff ! I’m assuming this was on a LM2?
I have a 18 5.3 Silverado with the 8L90 and it constantly ran 190’s (I live in the desert). After I bypassed it, it runs 145 max even in triple digit temps. All for “fuel economy”. So stupid.
Why the hell does GM put that valve there in the first place !!!!!!!!!
I just bought a 2020 with the LM2. Live in TX and it's always at 210 when I am not towing. Went to buy this part and it's now showing a 404 not available and I can't find it on their page :( I love the truck and I am able to do everything I intended, but these 100+ degree days and the trans temps are making me nervous.
For anyone wondering what this bypass valve will do without any other mods:
I have a 2023 LZ0 Trail Boss and the operating ATF temp was 198. After installing just this bypass valve, I couldn't get it above 155. That's with the stock cooler and pan. Be sure to top off your ATF after changing it, you lose quite a bit of fluid.
Love the channel and I’ve learn so much thank you. Do you recommend I get both since I live in AZ and our sumner heat is definitely above the 100 degrees in the summer?
Yes, it appears you would fit the temps perfectly.
I thought I was loosing my mind when I installed mine. I was where the hell is the 4th line at.
I have the PPE Pan, Cooler and Bypass in. In the winter while not towing my Trans temp is 100-115 def F. I may put in the improved Racing thermostat in to run at 140 deg F.
I didn't know they came out with one for the 3.0? All I have seen was for the gas engine style, on the transmission.
@@DemonWorks
Says it’s for 6-8-10L?
@@ryanlogan2911 It does, but it's made for the lines with the manifold on the side of the transmission, which only the gas engines have. The 3.0 is the only one with the valve on the side of the engine.
@@DemonWorks maby we need to hit Improved Racing up to build us a Thermostat bypass which opens at a lower than stock temp.
@@ryanlogan2911 I did :)
In your opinion what would be your first mod in looking for lower temps on your transmission? I am thinking I will go wit this bypass valve replacement from ppe. I am not a fan of the factory valve restricting the fluid flow. I would love to know your thoughts Thanks.
wow that really made a big difference my LZ0 is stock if i added in just that value would that be worth it or do i need to do that cooler also i do not tow that often but like that it runs cooler
do you have a discount code for PPE
No code for PPE products, unfortunately, but there is a sale from time to time.
Do you prefer the LM2 or the LZO? Wondering if I should by the older one or the newer one. I appreciate your videos. I have learned a lot from watching your videos. Look forward to hopefully hear back from you. Thank you and have a great summer.
I prefer the LZ0 but the LM2 is superb as well. i had a 20/21 and 22.5 and they all did the job well ! You really cannot go wrong with any, just choose the color and interior you like and you will be fine.
I have the lm2 and I have the ppe cooler. I just towed a 6k camper avg 70mph with outside temp of 70-75 degrees. Never went over 194. When it hit 194, it would drop to about 187. I did buy the bypass valve but I’m just not sure if I want to install because I live in Boston Mass area and we get all kind of weather.
I planned on removing mine when it got colder out. Going to continue driving to see how long it takes to get up to temp then decide next step. Your temps sound great!
@@DemonWorks I think the cooler and the bypass is a little to much if your in a hot cold climate. If you live in a area that is always hot. Maybe both will work.
@@b18civicsi00 i absolutely agree. I was holding back for a future video, but I will just come out and say right now… I think, for my use, the deep pan and trans cooler with factory bypass valve is the way I will go.
This is great content. I stumbled across the STL020 kit from Superior Transmission parts a while back and one vendor claims it's compatible with the 10L80 in the newer 2021's. Now that I see that the cooling packages different between the LM2s and LZ0s it probably won't fit my 2020. I liked the concept of it though because (temperature discussion aside) it maintains the safety protection of bypassing a plugged cooler which must be a feature of the stock bypass valve?
I saw that kit, I believe it's designed for the built in bypass at the line manifold on the side of the trans (not our design) but unsure if it will also fit our block.
@@DemonWorks Looks like it would fit the block, but not work. I emailed support at Superior Transmission and they replied instantly. They said that kit wouldn't work because the blow off spring is too heavy (they claim there is only 25 psi being sent to the cooler) so they need to make some modifications so that it works properly. They did say they were working on making it compatible but wasn't able to give an ETA.
@@valmasj hey that’s great info! I appreciate you sharing that with myself and everyone else that reads this. I also appreciate companies that respond quickly as well as listen to the customers questions then work to resolving the issue. Thanks for sharing !!!
At first I thought maybe the trans temp sensors were inaccurate but after your installation it seems like a major drop so maybe its not that far off but it would be great to varify! I wonder if you could list all the stuff you have added (cooler etc) to improve your transmission temps. Did the larger cooler really help? Lots of helpful info.
Hey! The trans cooler took my temps down from 210 daily driving to 199 no matter what I am doing, daily driving or towing.
Next I’m installing the ppe deep pan and going back to stick with this valve.
Has anyone with the ppe bypass, larger cooler, or larger pan experienced trans failure of any kind? Seems like high temp is killing the pump idler gear bearing.
Does this also work on the 10L80 found in Tahoe trucks? I checked the website, and it only lists a bypass valve for the 6 speed for my year?
incredible find!!!
Running way too cold. Should run around 180deg regardless of OAT unless pulling a heavy load.
Mine averages like 189 highway driving. Today I hit 258 driving on the beach in 4WD. Lolol
That’s spicy!
HOw will this impact cold weather driving? Can the temps remain too low?
In my opinion, this is too low. I will be doing a few new videos in the near future.
So after all the testing would you recommend the larger cooler and the PPE bypass valve or so other combination?
Depends on where you are and what you are using the truck for. I’d say if you are in a warm climate, the bypass valve is the way to go. If you are somewhere that gets really cold, I don’t t think the valve is a great idea. I’m in that category so I’m running the trans cooler with the deep pan. Will be toying with the stock valve real soon though.
So going by your diagram of the transmission fluid layout, won't the cooler that receives engine coolant help with maintaining an idea temp for trans fluid if the bypass, deep pan, and PPE cooler are used under higher load conditions?@@DemonWorks
@@huntsman12g that cooler receives coolant flow from the coolant valve, helps to get the trans temp up quickly. I do not know the temp in which that valve opens or closes though.
I live in North Dakota and winter months the temp can get to -20 to-30 below, If i install this will the transmission temp stay to cool for the winter months.. I do tow with it in the summer and so far the transmission has temps around that 195-205 degrees, thanks
I personally think your winter temps are too low to have this, but others may disagree.
Lm2 maybe ok, but the LZ0 probably not. Not unless you change the lines to the LM2 style.
I cancelled my order for the PPE bypass after watching this. 75 degree drop is too much, I can just imagine in the winter time..Yikes! I still haven't done the pan but that is definitely on the to-do-list. Just wish I could find a shop to do the engine oil pan, made a few inquires but all declined.
According to some guys' anecdote in a GM forum, it isn't an issue in the winter because the truck will close down the the grill shutters to get the trans temp to a reasonable operating temperature. I ordered one of these and will be see how it goes next week while we still have temps in the 30's where I'm at. Thought about just doing the larger trans cooler but that alone doesn't seem adequate and both seem overkill.
@@derekpearson766 how was it during the winter months
@@droppeds10404 Unfortunately, it didn't fit on my '24 due to a plumbing change that I wasn't aware of.
Did you add fluid after adding the bypass valve? If so how much and do you have a video on it ?
always check the trans fluid level and do it at proper temp.
This is so interesting to hear. I have a 2019 AT4 with the 6.2 and my transmission operating temps are drastically lower. Just got back from Glamis towing my toy hauler with rzr (10k pounds) and I never saw it go higher then 185 degrees. I wonder if this is only a problem with the diesel trucks..
Different setup, but this is what I use (5.3/6.2 Trans Temp) as fact when people tell me the transmission isn't meant to be cool. thanks for sharing !
I have a 2020 at4 6.2 And noticed your comment so you got the ppe bypass valve for the 3.0? And worked on your 6.2?? Plz let me know because I want to get it just wasn’t sure if it would work although they have the same transmission
Did you notice a drop in temperature when you changed out to the PPE Deep Pan with 12qts. If so, how much?
I am installing the deep pan today. My prior pan video was for a different truck I had. I will be pulling the Poe valve off and back to stock, then gave the ppe pan and cooler. Will note the temps
@@DemonWorks considering changing it out on my 22’. Did you notice a substantial temperature change on the prior truck?
@@Jim.Christy prior temps were 160-175 on the prior trucks. That’s why my LZ0 temps are so interesting. I’m hoping to get those numbers again, while doing this video, I saw the valve is open by 170. In theory, we should be able to maintain that 170-175 but since we are not, I’m thinking it’s a low flow situation. The additional fluid in the pan can help with temperature management. I have documented every change and temperature with this truck so I’m hoping to have all of the data needed to help everyone decide what they need/want.
Have to admit I don’t know a whole lot about automatic transmissions, what is a good operating temp? Is there such a thing as too cool?
I haven't been able to find anything definitive on this specific transmission. The ford version calls for high temps, but even though this platform was built with Ford, I don't trust their side since their cars overheat the trans regularly on the track. I have always been under the teachings of the trans temp is typically 160-175. GM calls for 158 degrees when checking the fluid level So I feel that is the area of "good" up to 190 degrees. My prior LM2 trucks ran at 160-170 degrees. Stock 10 speed gas trucks have been shown to run in the 150-160's. So I would say operating above 150 is the minimum. Yes, it can be "too cold" and that is where I waited to install this until ambient temps picked up. i will monitor my temps over the coming weeks.
@@DemonWorks love learning about this stuff, keep up the good work!
For it to live a long, happy any healthy life, about 165-170*.
@@sierracat that’s where my prior trucks were, I like 160-190. 190 being hottest it reaches when towing. Normal driving, 160-170.
Was that with a PPE trans cooler? My '21 LM2 typically runs 185-190*.
Hope that doesn’t affect the warranty because I was thinking about ordering this valve just don’t understand why a daily driver temp needs to be in the 180-190 heat kills clutch packs
any modification could alter warranty status. The high temps are for fuel economy, not longevity unfortunately.
@@DemonWorks longevity is better then the other option
Looks like a significant change, but like the other comment said it almost feels like its doing too good of a job when the transmission isnt being worked hard. Would be nice to see an option with a 160-170 degree thermostat, allowing for better flow when opened but also keeping flow out of the radiator when you want it to get up to temp.
Based on the testing in the video, the stock unit was wide open at 170 degrees. So, this open valve may be too open for me, I now know the stock valve will be open by 170 and that’s fine but why am I still getting as high as I am is the next question. I’m going to put in the deep pan next with the stock valve and see what that does for me. Stay tuned!
@@DemonWorks nice, I suspect the stock valve just doesnt flow much through the thermostat, so even if fully open it's only getting a relatively small portion of the fluid out to the radiator.
Looking forward to all the testing. This will be super helpful for those with either generation engine.
@@ALMX5DP I agree. Maybe there’s a way to modify the factory one as well, unsure. I have fun testing this stuff out.
This gives me vibes back to the old days of running no thermostat on our cars when they ran too hot. Not sure if this is the best idea because there’s always a sweet spot of where the temp should be at. Too cold isn’t a good thing
What’s too cold?
Has PPE or anyone come up with a valve for the 2023 LZO bypass valves that only have 3 lines going to them. One of the cooler ports is blocked and that line goes directly to the cooler. Have seen 207° on mine towing a 5k boat on a 90° day
Nevermind was not looking at the pics correct
In the LZ0 trucks this ppe block eliminates the engine cooler or transmission heater this is what I’m calling it. Because of the 3 line setup on the factory valve block. This is why the fluid won’t heat up because the fluid is not going through the engine cooler/ heater
It actually doesn't eliminate anything in the cooler like what you are saying. It's still going through that cooler, it's just not circulating through it and looping at the bypass valve. The system would loop the fluid through multiple it's at 196 then allow some flow through the cooler. this just eliminated the multiple loops.
I’m looking at installing a lighter spring for the factory valve and see how that works. I want the fluid to heat up fast but keep the temperature around 150°
Well the lighter spring in factory valve didn’t do much different maybe 5° less. Now it’s running around 190° that sucks and running the PPE block sucks too running at 120° and it takes forever to get there. The LM2 setup was perfect for this PPE block I guess GM found a way to fuck it up with this LZ0. If it had a different pill like a 140-150° in the factory valve it might work.
Would something like this technically void warranty?
one could say so, but that goes for anything, even an aftermarket paper air filter.
Did you get this temperature reduction just by changing the valve block or also changing the cooler?
Yes, I did have the other parts prior but the bypass valve is the big one for the cooler temps.
@@DemonWorksCorrect me if I'm wrong but it seems like the deep pan and cooler drop temps 25-35 degrees where as the bypass drops them around 40-50 degrees. To me, it makes the most sense to just run the bypass since it gets operating temps around 160 degrees and because it's cheap and easy to install. Have you ever ran the bypass exclusively?
Thinkin about grabbing this for my 20.
Works great on the LM2 as well, temps of 140-160 have been reported here by others.
I was looking at that and noticed the 6.2. Has the 10L80 as well Im wondering if that ppe will work on the 6.2 Even tho its for the 3.0 but they both have the 10L80
it will not, different design on the gas trucks.
Would this bypass valve work with the stock trans intercooler?
Works great in stock setups as well
your link for the ppe bvpass valve is dead, can you let us know why this part has disappeared from PPE's website?
It's out of stock, will return to the site when in stock.
How much transmission oil did you add after the bypass valve?
I put on the ppe trans radiator on my 2021 3.0 durmax but the temps are 180-190 if I put the bypass will it drop the temps?
Also my truck is setup for Overlanding so it’s kinda heavy
Yes, I saw a significant drop in the limited testing I did. Will do more testing over the next few weeks.
@@DemonWorks I have the LZO in mine towing in fl. my trans temp is 205
in 30 degree ambient temps i was hitting 210 degrees just driving. I have talked with a bunch of people and temps all vary but it seems the LZ0 on average, runs hotter trans temps. All of my LM2's were much lower
Yes I see temps around 165° driving in Houston,TX
Do you or any of your subscribers know if this will also work on the 6.2 with the 10 spd tranny also?
it does not, different design and you guys have a better temperature anyway.
I was curious about that as well
Do you know of anyone that has these in stock now everyone is telling me 4 - 6 weeks
Did you have to add back the fluid that was lost during install?
Not yet, need to be able to get it up in temp (longer driving). The amount lost was minimal, so I’m not concerned right now. It will get topped off in the near future and I do use a pump device for that.
@@DemonWorks can you make an update video about the highest temperatures you're running in daily driving? My LM2 gets up to about 190. Driving in the city. Stop and go traffic. I'm looking for something to lower those temperatures down to about 150 or so
125* temps probably won't be good in cold climates in the wintertime...
I agree, That's why I waited until ambient temps warmed up before installing. My 5 minute test drive also doesn't show real numbers, my daily driving temps over the. next few days will be monitored...
Do you think this will help with code p0747
it will not, unfortunately.