new fan clutch or radiator fan sencor???

so my b2200 runs normal timp but at times ideling for awhile it gets alittle warmat maybe after 10u minuts till it gets moving and air cools it back down how do i know if i need to replace the clutch for the fan or that sencor in the bottom of radiator with the two wires?

Running hot at idle or in traffic, and cooling while the vehicle is in motion is symptom of of a bad fan clutch.

Remove a battery cable. Remove the belts. Replace the fan clutch, pull out your 10mm box wrench. If you undo the rubber hose coming off the air cleaner to the metal pipes, you'll be able to angle the fan/fan clutch out of there and then be able to replace the fan clutch. Make note of its orientation.

You should not need to remove any radiator hoses to do this.

so what do i need to pay atention to? and thank goodnes for a weber it makes it alot easy to get to....and what is that sensor for in the radiator then?...and one more queation it pertains to the leftover wire harnes after instaling the weber ware it hooks to the egr valve below the carb and a green conector sencor thing on side of the manafold can i remove all that also?