I'm cutting off coolant flow to my throttlebody and tracing the plumbing it goes through the IACV before the TB. Ideally I'd like to cap the nipple on the hard pipe which would mean cutting off flow to the IACV. Does the IACV need coolant running through it to work properly?

Thanks
Ben

 

Mine works fine with no coolant flowing through it, but I live in Florida so I dont have to worrk about freezing temps

 

no you dont need coolant for the iacv, but if you live in cold weather yes

 

Thanks........