How to Replace Thermostat Chevrolet S-10 Blazer V6 1993-2004 - EASY!

Today we are taking a look at replacing a worn out thermostat for a 1993-2004 V6 Chevrolet S10 and Blazer. Please dump you old coolant at your local EPA approved dumping facility. Thank you so much for watching!
Thermostat: amzn.to/2tF3kcR
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*Disclaimer: Please use all safety precautions

[@MikeHobsonSOHC]

Great video. Well filmed, clear and no fluff. Thanks for putting that together. It helped me a lot.

[@2carpros]

Great to hear!

[@foxrydes6249]

Thanks for the great step by step, just did this on my 2002 S10, Thanks again!

[@2carpros]

You're welcome! Thanks for watching!

[@daltondoyle3306]

do you absolutely have to drain the coolant ?

[@tarwashsomeonestolemyhandle]

10:55- that bracket you are putting on should go behind the throttle cable bracket by your left thumb and that is another stud bolt. Some body put it on wrong the last time this was done.

[@Mike_The_Hog_A_Nator]

I just pop my Housing off when it's cool & take out the old & drop in the new thermostat. I Just did my water pump, Severe Duty Clutch Fan & thermostat on my 2002 Blazer ZR2 which shows on a scan tool to be a Trailblazer! Took about an hour.

[@jonamadatsu2918]

Interesting. I don't want to drain the system myself as I am worried about the collection of all the old antifreeze since we have pets around. My plan is to change the part myself and then flush it out.

[@ssgllc7007]

I agree. I did the same.

[@lildeathwishhh]

came looking for this exact method, cuz i had the same idea. thank you for confirming it will!

[@reynoldpetersen3280]

An excellent video and explanation.

[@2carpros]

Many thanks!

[@SuperYoyoitsme]

Thx alot of the people do videos could give less then 2 dames GREAT JOB BUB

[@2carpros]

Awesome! Thanks for watching!

[@josegurrola7683]

So there’s no bleeding the system on these??? I know in other cars I leave the funnel on with enough coolant in there while the engine gets to temp and usually don’t cap it until I get all the air out

[@uzileopard6199]

He did, it was just skipped over. That funnel he used is specifically made for coolant cause it has different parts/add ons in the kit to create a vacuum seal. It’s a cool little tool to have but i mean it is pricey $30 for a funnel.

[@josegurrola7683]

@@uzileopard6199 yea that’s the funnel I use, best thing for bleeding cooling systems

[@jerryfreeman8587]

Thanks man, my truck was running around 200° (just bought it and had the transmission and differential) and after this it’s running a cool 165°

[@2carpros]

Nice work!

[@andrewbelmonte-russo721]

165 is probably too cool. Your thermostat might be stuck open. These 4.3 V6s are meant to run at 195.

[@thagerdorn2009]

165 is very bad for these trucks. HAS to be around 195-210 or it won't run right. Owned a bunch of these and worked on hundreds. And my current one I'm replacing it because it wouldn't even reach 195 degrees.

[@bryantbutlermf]

I see you got them tiger paws as well 💪

[@mordinwrex1375]

13mm one the bolt for my S10 Chevy 2001?? You had a different bolt for the side .

[@lanajantz2240]

Good learning experience

[@2carpros]

Glad you think so! Thanks for watching!

[@josephutuadoPR]

Jesse just mad he didn't get any from his boyfriend great job as usual

[@2carpros]

Thanks Joseph!

[@hectorramirez880]

would a bad thermostat cause weak heat ? needle seems to stay right below middle

[@louisgallaher5487]

where do u go to replace them if one of them breaks into a little piece inside the block

[@Mike_The_Hog_A_Nator]

Those Thermostat Housing Bolts snap very easily. The 4.3's are known for snapping. I just run 1 bolt for years & no leaks. If you can get both out? Put some grease on them, for future replacement.

[@borntobewild846]

Does anyone notice any performance differences by running 180 vs 195. Did mileage drop off? Mine seems to be running warmer than I want according to the guage. Thinking about a good radiator flush, new coolant and thermostat.

[@n.h.moreno]

Nice!!! My Jimmy keeps getting a P0117 Code and I changed out the ECT and there is a misfire in the 4th Cylinder. Says it might be a fuel injector, now. But, will this help with the crappy start??

[@2carpros]

I would definitely change that fuel injector, clear the codes and see if it worked. Thanks for watching!

[@noedominguez8908]

Do you bleed it after ?

[@rccleto4727]

Sou aqui do Brasil, muito bom seu video, vou seguir seus passos para trocar o meu, como faz para tirar o ar do sistema depois disso, obrigado

[@BillyNoons]

That you so much. Great video

[@2carpros]

You are very welcome!

[@killastr8059]

Good step by step. But the antifreeze on these engines is suppose to be orange

[@brandonplaisted8194]

I run green in my and it runs better. As long as you don't mix Dex merc and normal antifreeze you should be alright.

[@1988FoxbodyDookie]

Dexcool is corrosive, hence why we do not see it used as a popular choice.

[@killastr8059]

@@1988FoxbodyDookie Thats what you suppose to use in GM vehicles.

[@rileyhart3503]

@@killastr8059 it’s what gm calls for but most people just drain and flush. Then go to the green. Like the gentleman above said. Dex cool eats gaskets which is why most try to go with the green.

[@ghouliesgarage3922]

GM went bankrupt because of the Dexmerc orange corrosive garbage. That eats intake and other gaskets . Id strongly suggest flushing that garbage out real quickly..

[@desertblbuesman]

Oem is 195F thermostat. Some say put in a 180F thermostat because 195 is actually too hot. Any thoughts? I'm not getting enough cab heater action.

[@louisgallaher5487]

i have 180 in my new thermostat

[@kontrarien5721]

You've got two videos that I've found for this job, but unfortunately neither are for my engine.

[@williambourbeau4374]

Great video!

[@2carpros]

Glad you enjoyed it!

[@BigDsHomestead]

Why not reattatch radiator hose before installing thermostat and then refilling block as much as possible then install thermo/housing, yhen refill radiator. To me it makes more sense because your block will already be partially flked and tthen you wont have as much risk of it overheating as you add more clant and burp the system. Sort of like filling an oil filter with as much oil as you can before installing to have full oil pressure. It will be ok your way, but I'd figured I'd throw that in.

[@hueytlatoani1177]

Do 92 and 93 use same thermostat?

[@timothyheard1566]

Is there not a gasket that goes on that housing

[@ron4413]

No, I just did my 94 and I thought the same thing.

[@johnnyv.1178]

mine has gasket maker on it for some reason

[@ron4413]

Aren't you suppose to use distilled water. I mean, I have used tap water many times but I dont know if it's good for it

[@theguy4801]

I’m a painter not a mechanic but I believe the distilled water will be less likely to promote corrosion. Water has a ton of minerals in it and obviously those will react with other stuff especially ferrous metals!

[@georgesmith4216]

Yes. Use distilled water. It has no minerals in it.

[@RogerRHF]

Is it necessary to drain the coolant? Would I be able to just change the thermostat without doing that?

[@2carpros]

If you want to make a big mess sure. Thanks for watching!

[@christopherharrell842]

Does this work for a s10 1994 truck?

[@2carpros]

Yes this was on a S-10. Thanks for watching!

[@languageprogressions9111]

Helpful video, but does anyone else feel how depressed this guy is?

[@2carpros]

Thanks. We all have down days. Thanks for watching!

[@thagerdorn2009]

Dont spray brake cleaner or carb cleaner directly into the cooling system. Should have left the thermo in and cleaned befofe removing.

[@2carpros]

Really doesn't matter. Thanks for watching!

[@thagerdorn2009]

@@2carpros yes it actually does matter. You can't get brake cleaner or carb cleaner in the cooling system buddy. You can get it in the engine itself and it'll be fine. But not the cooling system. It's pretty easy to clean the surface with the thermostat still in. I've done thousands of thermostats and I've actually seen an engine seize from someone getting brake cleaner in the cooling system.

[@2carpros]

@@thagerdorn2009 Seize?! Seize from a bit of carb cleaner in the cooling system? Haha you have to be trolling me. Nice try.

[@rafikiAli]

Why no distilled water? "Not a mechanic!!" Just a DIY guy wanting your take.

[@2carpros]

While technically correct. Hose water is just fine especially when you are working on blown head gasket cars that aren't going to be on the road long enough for chemical reaction of hose water to effect the different metals in the system.

[@gwanpaw]

Doesn't look "easy" to me.

[@2carpros]

It really isn't bad. Thanks for watching Bill!

[@k24civic]

If changing a thermostat isnt easy for you……please take it to a professional

[@ezescousin14213]

Ohh good no porno music

[@2carpros]

Yep got rid of that sometime ago. Thanks for watching!

[@jessecanales9000]

No gasket don’t clean the housing crap job . What a KZbinr

[@2carpros]

The gasket is on the thermostat. Did you see that?

[@josephutuadoPR]

@@2carpros Jesse just mad he didn't get any from his boyfriend great job as usual

[@305_cowboy]

2CarPros I’m kinda confused, I saw the gasket on the thermostat but online I’m seeing a separate gasket for the actual housing

[@GEAKUNO]

Doesn’t this truck require orange coolant?

[@KillianDeaton]

@@josephutuadoPR that’s at least the second time you’ve commented that. You do realize that it’s neither funny nor clever right?

[@greysonstewart1577]

Talked wayyyy too much. Just get to the point dude

[@2carpros]

I’m a talker. Just skip over it. I’d rather say too much than not enough. Thanks for watching!

[@elmeme68]

too much bra bra bra, and no action, see you bye...

[@2carpros]

lol bye

[@elmeme68]

@@2carpros nice and helpful video, man, thanks….