colder thermostat mod for Chevy Sonic, Cruze Trax.
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- Опубліковано 3 лип 2021
- this mod has been extensively discussed at:
www.cruzetalk.com/threads/1-4...
it involves a dorman thermostat donor (902-2080)
and the original sonic thermostat housing. and a lower pressure cap (15 psi)
if you find some of this useful consider making a donation at: www.paypal.me/amedsoprano - Комедії
Thanks
When my 2012 cruze gets hot the thermostay doesn't open. I had one installed that stayed open and left an error code. Installed New one an now it wont open.
Thanks, where is the link for what i should buy
Worked fine for me now with 198k on it. No codes,passes inspection..........heater vents use to burn kids inside the car if they touched them while heater was on and fan on low...... not now.
Would this work for the 1.8l too? Nothing but cooling system problems all related to the high temps from factory.
I have no clue how the tstat on the 1.8 looks like
Does the check engine turn on with the low temp thermostat?
No, whit this mod it doesn't. However if you remove the thermostat core completely it will. There's a threshold in the ECU, I believe if it doesn't gets past 70°c after a certain time of running it will throw a CEL.
And how long as this worked for my car ran under temperature for like 6 months and I started not burning fuel correctly has this happened to you bc my tstat don't open till around 226 and I think that is way to high also... And also the fan do t ever run on your car? What about if you turn the ac on them is it to cold?
Mi car has run fine ever since, the fan almost never kicks on because there's no need (it never reaches the "on" temperature)
anyone do it for chevrolet trax 2017?
Hi, may I ask what is the different between replacing a 15psi cap vs keeping the original 20psi cap?
The cap regulates the pressure of the entire cooling system, by lowering it there's less force pushing outwards in every single part of the system thus less stress. You're also technically decreasing the ability of the water to go over its boling point without it boiling, but with the combination of thermostat and cap I've never seen anything over 97°C even when trashing the car heavily, revving and attempting burnouts.
the boiling point of a 50/50 mix at 15 psi is 126°c so I'm well under the safety margin.
20 psi would be 135°c which is necessary with the original tstat that operates at 110~115°c
@@amedsoprano the previous owner of my 2017 Chevy Trax actually removed the spring of the thermostat completey, leaving only the core remains. He ran it for years, I think. I've just replaced a new one and notice that the temperature is too high, now the car often run around 100°C to ~108°C. I'll try to find the cap you show in the video and order the dorman thermostat as well. Its really hot in Vietnam this summer 🥵
I want to install Thermosta 197F Do I have to install the 15psi tank cap or leave. 20 psi
You can leave it if you want
Is there an upgrade for the cooling fan switch
because my cooling fan comes on at 221 Fahrenheit
That's ECU controlled. You'll have to get a tune for that but if your car never reaches that temperature there's no need for the fan to kick in
@@amedsoprano So all I have to do is swap the thermostat, no tune or anything like that? Just a quick swap?
@@saifsaid6705 the thermostat is basically a wax slug with a heater built in. The amount of wax determines the temperature it needs to push the plunger and open the t-stat. The ECU can send power to the heater and open the t-stat whenever it wants to, but if the coolant around it is already warmer than the opening temperature it will open by itself. So no need for a tune
@@amedsoprano Got it, thanks. Going to pull the trigger on this mod
can this method be applied to cruze 1.8? Because there are differences in shape between the Cruze 1.4 and 1.8
Idk since I don't have one of those, but if the inside piece is identical it should work
I did it in a 2016 chevy sonic and works really good but now the radiator fan its working all the time at its max speed, maybe I need to check therm sensor or some lose connectors but let me know if you have any idea or advice. thanks
Plug an obd reader and clear any codes you may have but not before resolving each one first
@@amedsoprano thank you! It was the MAF sensor wasn't plugged in on, cleared the codes and its good... Now I would like to know if there any way to force the fan to start at lower temperatures for example when reach 88 C without the need to start the A/C, I was reading in the forum something about an "auxiliary radiator fan switch" but I can find more detailed info.
@@RafoRisco with a tune
This doesn't work , don't waste money. There is error and require reprograming
@@euronickelit3kavadarci946 what error did you get?
hi. did you noticed an increased fuel consumption after this modification? i've ordered myself parts to test. i have an Opel Meriva B 1.4 120hp(A14NEL). thanks
I have not
@@amedsoprano i will modify mine in about 2 week. I hope that worth..
@@amedsoprano does this modification will trip a check engine light?
@@adaniel69 no
Daniel you changed it ?
How u lost any mpgs since the car is running cooler ???
Nope, not that I have noticed. I may have but it's so little that I honestly don't notice any difference in mileage
Скажите пожалуйста какой модели термостат cadillac подойдёт
Elr
Do i have to replaced all together or i can do only the reservoir cap???
You could as long as the temperature and concentration of your cooling mixture doesn't exceed 15 psi. There are charts on the internet that correlate how much pressure does water generate at what temperature (it varies from just water to 50 50 water and coolant) just search for engine coolant pressure chart.
www gomog com/allmorgan/coolantcolors html ..... Just replace the spaces with dots, that page has one of many charts available
Ok got confused so i dont want to replace the thermostate but i was thinking only for the cap to swap the 20psi for one of 15 psi
The boiling point of 50% coolant in water is 267 degrees Fahrenheit at 16 psi. As long as your tstat is below that you should be good
Is any way to set up the ecu to send info to the thermostat to open on a more cold temperature instead a 221f
Do u have a part number for the donor Thermostat
It's in the description of the video
@@JuanPerez-pi9id that's the number that I used to order mine. You can look it up as a Chevy volt thermostat
Do fans have to be programmed?
No, with a lower temp for the thermostat the coolant will not reach the fan turn on temperature and even if it did, they would just turn on.
Hi..
It's been a year since you post this video. How is your car now after the swap?
It hasn't lost a single drop of coolant since, seriously I haven't even opened the reservoir.
@@amedsoprano Do you still use the pink Dexcool Coolant according to GM recommendation?
@@pfuljono4213 yes, 50/50 Dex cool
Awesome! I wonder if this modification applied on diesel captiva?
@@pfuljono4213 if the housing is the same it should
How much does that cost
Depends on where you buy your stuff. You can search each part by their number
These plastic cars aren't built for this kind of very high pressure and high temps. I own two cruzes one 1.4 and 1.8. Both had leaks from coolant overflow bottles (never had to replace coolant bottles in any of other cars), bulging radiator hoses and cracking plastic coolant outlets. I believe this is a good mod which I am going to add to my 1.4 (I don't care saving few pennies on gas but replacing expensive parts). If you have one for 1.8 let us know. THx
I don't have a 1.8 to tinker with but I assume the procedure is basically the same. Idk if the internal structure is the same so the same volt tstat could be used
This doesn't work , don't waste money. There is error and require reprograming
@@euronickelit3kavadarci946 I did it and it’s working and running fine. No CEL
This doesn't work , don't waste money. There is error and require reprograming
GM tech here, just to let you know, the stats are all the same, when you see the temp open number advertised on the stat, that is a lie, that is what the car is programmed to open the stat at, the stat is 100% controlled by the ECU, why they have 2 water sensors, there is no water controlled wax in any of them. This mod won't change anything. You'll either have to remove OE stat for a traditional water temp controlled one (3D print custom housing) add a tone to delete OE temp and codes set to desired temp to open, or will have to manually control it by plugging in a PWM set to desired temp after scoping it and leaving another sensor plugged in to OE connector as to not set a bias code.
EDIT I should say first before i put foot in mouth that that is for the US however, i don't know about the rest of the world if GM did something different, but for any Trax, Volt, Cruze, Sonic...ECT with the 85Ci (1.4) in the US, they all use the same thermostat.
Every single thermostat in the world works the same, it's a wax filled piston of sorts. when the wax heats up and melts it expands pressing on the plunger which in term pushes on the sealing part of the t-stat. The only difference with modern cars is the addition of a small ceramic heater within the piston which will heat the wax on command instead of letting the water heat it up. You can open it whenever you want(or the ECM rather) but you can't close it if the water is hot.
@@amedsoprano That's what the Chevy Cavalier and Cobalt had yes, but not the Trax, Volt, Cruze, Sonic ECT... uses, it's 100% controlled by the ECM on those. If you unplug the connector on top of the thermostat, it will never come open and will eventually overheat. Just cut one open and you will see.
@@joshausterlitz3798 why don't you follow your own advice and unplug one while at operating temperature. Hell if you're a tech you should have obd tools capable of closing the thermostat on command. Try closing it while at working temp and see what happens. If you come up with video evidence to prove your point I will PayPal you 100 bucks
@@amedsoprano LOL typical youtube tech, if we get a trade in, i'll get my 100 bucks then (you won't do it though) But, i asked you first, cut one open and show us, or better yet, take the hose off the thermostat housing, unplug the connector and lets see what happens..... i'm waiting......
@@joshausterlitz3798 you're the one claiming BS here. Prove it or go kick rocks