TOYOTA SIENNA 2005 THERMOSTAT REPLACEMENT

TOYOTA SIENNA 2005 THERMOSTAT REPLACEMENT

[@ToddDWebb]

I'm going to be doing this to my wife's 05 Sienna tomorrow. I love Toyotas, but man, they've got everything piled on top of everything else in these vans. You don't realize how much you helped me. Thank you so much. Just knowing where things are located in this haystack of an engine really helps a lot and saves time. Thanks again for the video and the detail you included. Have a good one.

[@frankg8178]

I haven’t even finished this video and I can tell you is the best on KZbin. I’ve watched every single one of them holy smokes and then I run into this guy who is excellent start here and dear. Good job my man I’m subscribing. I’ll give you five thumbs up , and a 10 mm wrench at the end golden

[@johnelroy8149]

The video helped me replace the thermostat on my 06 Toyota Sienna today . Doing it the 1st time was not as easy as shown on the video . However I did complete the job . It will take some time and be gentle with the hoses wires etc .

[@burakbey1068]

Did you add coolant and bleed it after replacing thermostat?

[@paulr.8910]

Thank you for posting this video, your step by step explanation helped greatly to replace the thermostat on my 2006 Sienna. I used a flexible socket extension and battery powered impact wrench/gun (set to lowest setting) to get to the awkward bolts/nuts. The nut on the backside of the thermostat housing is a pain, but not impossible. For others that may not know, you can determine if it's your thermostat that is failing by (obviously) observing the engine overheat via temperature indicator in your dashboard, and feeling the top and bottom radiator hoses when engine has been ran. If the thermostat is failed, the top radiator hose will be HOT, while the bottom radiator hose will be much COOLER - usually this is a good indicator that it's the thermostat.

[@julier1080]

A thermostat can fail in more than one way. Your engine may NOT overheat because the stat is stuck open. In that case you may be experiencing poor fuel economy or rough running because the engine doesn’t get up to temperature. Also lack of heat in the passenger compartment.

[@paulr.8910]

julie r Good point, glad we're all sharing information in diagnosing our individual scenarios.

[@datruth9329]

Paul R. If you can afford to get both parts I would you don’t want to change one part put it back to together and it leaks again. You can’t go wrong changing both.

[@Peter-gl1yv]

Code P0128 has temp sensor and thermostat as 2 main issues. I replaced the easy sensor (no help), time to move onto the more difficult thermostat. Mine appears to be stuck open running cold. Thanks for video.

[@bstarkey54]

Mine is running cold also which then has caused an error code to show as the motor isn't getting hot enough. I have an inexpensive OBDII reader that shows water temp so you can see what its doing. $25 for a Blue Tooth reader and download a program on your cell phone and you are good to go. Thanks for the video. Actually looks like something I can do myself.

[@aaronbreitbard1086]

Super helpful! Others said remove the starter, you said remove a single bolt and keep on. Well and good! Great editing and commentary. Fixed my customers p0128 code with a fresh thermostat

[@markread7333]

Thanks for the video. When you started to seat the gasket in the opening, I was like, "Naaaw!!" but you saved yourself. Nice job...

[@markjohnson9495]

Thank you very much! Very clear, concise explanation. (Toyota deserves a swift kick in the pants for designing it this way.) Thanks again!!!!

[@phillipwolf2055]

Hugely helpful for my 2004 Sienna. It went just like you showed!

[@nledelnr]

You made that look easier that I suspect it's gonna be. Thanks for helping.

[@pauloatonio5721]

Thank you for the video,, it helps me a lot,, i'm sick and tired of these pluff mechanics,, waisting a lot of money,, but now i can do it myself,,

[@gertis7420]

Just what I needed, thanks for taking the time to help others.

[@corpsebride1453]

Thank you, I was gonna have to scoop $450 out of my account to fix my car but with this video I was able to do it all myself and save so much. Appreciate what you do

[@zacharypfefferkorn6895]

Thanks so much for this dude. I'm gonna do this this weekend. Van has been a real beast and I can't let it go without doing some maintenance myself and trying to get at least 300k out of it. Appreciate you, liked and subscribed.

[@timdenham5618]

Hello , I just recently received a 2005 Toyota. And I got a whole 2 weeks of happiness before I had to start working on it. This video and your step by step instructions are on the spot. Only I can't seem to get the airflow sinser to unlatch. Any tips? Also, if you don't already, please 🙏 fix more of them. I have had 3 brain aneurysms, and most videos have vehicles up in the air with excellent lighting & knowledge of vehicles. I have none of those things 😕. I have a car port and some tools. But yeah, you have the best alround for dummies like me..AND I THANK YOU...TREVEAL 😊

[@kamalBEY]

Finished with 2 snapped bolts but it’s still success, thanks for great video, combined with repair manual it took about 5 hours to get it done

[@dmcc7365]

A liberal spraying of PB Blaster on those nuts may help. I've had great luck using an induction heater ("BoltBuster') on stubborn engine bolts. There is no flame with an induction heater, so little risk of melting wiring and such.

[@bleedingfingerT1]

Nice video. I saw another video and the dude took the starter out. I questioned if that was necessary. Glad I found this video. I hit subscribe too!

[@cristesilverio4557]

Thanks for sharing this educational video, it's very helpful. God 🙏 bless

[@kharmicsales6329]

Awesome! Thanks so much.

[@brad173]

Looks to be fairly simple. I’ve replaced my starter before and that wasn’t too difficult. Hoping this will treat me about the same. Thanks for making the video!

[@timearly5241]

Impressive details given. Well done!

[@Urawizardary]

Great step by step

[@charlieboy501]

good job bro your a big help would anybody know we're the fuses are for the air conditioning

[@aristotleaquino3067]

Thanks for this. At least I know now I don't want to replace the thermostat myself. Ask me though after I pay the bill :)

[@gackal1982]

thanks for the video bro imma get on it this weekend

[@waseemusa6733]

Thanks man very nice😊😊😊

[@barricadegarage5361]

nice!

[@johnathangrey3463]

Hey playa. Thank you so much for the post. I was trying to find and do the same to a Toyota 2005 solara se. There the same engine. Kickass playa, thanks again.

[@johnathangrey3463]

Much love.

[@johnathangrey3463]

Like the video? Hell I loved it.

[@orionthehunter9107]

How hard was it to remove and reinstall the 3 thermostat bolts?

[@david90210ca]

thanks bro!!

[@bhonjiyo5885]

Thank you for the video, I have a 2006 Sienna and coolent started leaking right where the thermostat and housing are. Without being able to see the bottom of the housing, do you think its the housing or thermastat gasket that is causing the leak? I was planning on buying both parts since they are cheap but wanted to get your opinion. Thanks again!

[@farrukhabidi2764]

Can some one please tell me what is to be connected to the screw coming out from the housing?

[@kharmicsales6329]

Trying to save some money, got everything done. Replaced it but now it won’t stay on. Have no clue what I did wrong. 🤦🏻‍♀️

[@1highplains]

So no gasket or at least some kind of sealer or permatex goes on the housing where it bolts to the block?

[@dmcc7365]

The design depends on proper seating of the thermostat gasket, which is grooved to fit around both sides of the thermostat.

[@jesuscarballo4445]

i'll just take it to my mechanic :)

[@jjack6896]

Eventually the POS plastic thermostat housing will break at the hose. Horrible total design.

[@dmcc7365]

For sure! I read where someone replaced the plastic part with a metal housing and extension pipe salvaged from a 2000 Sienna 1MZ engine. Hole patterns match, but the metal housing has a port for a temperature sensor that must be plugged. Also, the extension pipe is mated to the housing with a rubber o-ring, which seems like a weak link in what should be a more reliable fix, although I suppose that a leak around that seal would be less severe than a split along the seam of the original plastic part. BTW, if I were going to the trouble of so much disassembly to replace the thermostat, I would also replace the two plastic heater hose tees with metal equivalents.

[@sophiadelaird7375]

Can you remove the thermostat without taking out the battery and air filter box?

[@datruth9329]

Sophia De Laird no you can't you won't be able to get to the housing bolts

[@sophiadelaird7375]

DA TRUTH , Ok thanks. I'll try again tomorrow. I stopped because I couldn't take it out and it was late. I'm going to be asking you more questions tomorrow. So stay tuned to your phone :)

[@sophiadelaird7375]

I already took out the bolts (they where reachable for me) But the thermostat don't fit between all that stuff. I just noticed mine is a different year, a 98` (slightly different). I took it out already!

[@waseemusa6733]

No

[@528freq8]

You sound like Gary Sinise

[@normaeunicechavarria4101]

How did you know it was the thermostat that was bad?

[@datruth9329]

The upper radiator hose would get hot and lower would stay cold also the fan would not come on when the vehicle got hot and the vehicle was overheating

[@normaeunicechavarria4101]

@@datruth9329 thank you

[@gackal1982]

ill just have the mechanic do it 😂

[@destressfrlyf843]

jesus carballo You took the words right out of my mouth 🤣🤣🤣 Much respect to him, but I'll just have to let the mechanic make money on this one

[@Iarecutter]

I completely missed how the housing was replaced.... there's no way to fit it in without removing the small motor. SMH

[@johnelroy8149]

I had to twist mine around a bit to get the thermostat out with out removing the starter .