Replacing vehicle thermostat (2008 Lexus RX350) NO HEAT in car!

Replacing a stuck vehicle thermostat and a vapor locked heater core in a 2008 Lexus RX350.
This was definitely a challenging repair for me. The thermostat housing is held on by 2 -10mm nuts. The problem is, they are hidden behind the idler pulley and there is zero visibility.
Slow and steady, but we got it done!
Sorry did not record the entire repair. Wanted to just get the job done.

[@ArtHill-ul8jq]

Thank you, don’t be so hard on yourself. It was very helpful to me.

[@patricklucki5368]

Thanks for your info. You explained it perfect

[@theoriginaljimmykicker]

Watched another video where it appears that you remove the upper dog bone mount, and remove the assembly from the top. Doesn't require taking any belts or pulleys off. Take off that assembly 16323-31040. Replace the parts and place that back in the car.

[@Letsfixthings]

That was the other option to try. But this was easier for me.

[@theoriginaljimmykicker]

@@Letsfixthings the housing is leaking on mine so it’s gotta come off either way.

[@iphone3manu88]

Do you have a link to that other video? Thanks

[@BigDipper79]

The idler pulley bolt was it reverse threaded? I.e Left tightens right loosens? A lot of those are. Thanks.

[@Letsfixthings]

I am sorry but I don’t remember. I normally would say it in video if it was.

[@LuisSanchez-by7mh]

Does it work for a 2010 model?

[@Letsfixthings]

Sorry I do not know.