confused with the names??

i just need someone to clarify what
they do and which one is necessary.
which one turns on the fans?
which one controls the gauge? (mine isnt working)



temperature sensor??
thermostat?
temperature sending unit?
temperature switch?

my gauges arent working either bro.

waitin for this answer aswell!

You should change the title to the thread, I, and probably a lot of other people thought this was going to be a n00b thread about the difference of Rs, Ls, etc..
Contact a mod and ask him to change it to something more explanatory :thumbs up

lOl i thought that too when i clicked into it