need help to install the electric Fan please, thanks guys :).

[etlsport]

that roar is caused by a bad fan clutch, replacing the fan and fan clutch (usually sold together anyway) will take care of it

[SilverBullet75]

I was going to say... I haven't heard that kind of roar...??
Mine's pretty quiet.

[Ldub]

Cue up 70's Canadian songbird Helen Reddy...

I am fan clutch, hear me roar

With a noise hard to ignore

And I make you want to cool with electric-a-fa-annnn...