Do I need to drain coolant to replace ECT sensor ?

[Burnsy]

And do i use Teflon tape ? Thanks

 

[bobbywalter]

be speedy......should have factory goo.....if not tape is fine.....leave 1st threads bare.

 

[rusty ol ranger]

No you dont have to drain coolant. You might lose a tablespoon changing it

 

[bigredrangero]

No reason to skip threads with your tape. Better sensors have the entire thread area covered.

 

[slater50]

after the engine cools, leave the cap on, dont take it off....
That will create a vacuume maybe & keep the coolant in....
keep it from pouring out...