rusty nut

Member
hi,have a polaris atv cooling system problem,looses antifreeze but don't see it anywhere, run machine it says hot check engine,this is after running a while,radiator cap does not get hot at all,reservoir stays at same level it is not drawing fluid from reservoir,I put new radiator in the other day,people talk of bleeding system I don't know, I don't see fan coming on,it use to work,but where is antifreeze going? why doesn't radiator cap get hot? when it says it is hot,why isn't it drawing fluid from reservoir?maybe thermostat is bad? hope its not head gasket.please help thanks.
 
My neighbor just went through this problem. On his there was a pinhole leak in a hose. It would let antifreeze out when hot and air back in when cooling so it couldn't suck any from the external reservoir.
 

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