upper and lower radiator hose collapsing
 

for some reason the upper and lower radiator hoses collapses halfway, but when i open the radiator cap the hoses expands back to normal. anyone know what causes this?? this is a b18c1 in a civic

Re: upper and lower radiator hose collapsing (FLCivic)
 

I'm pretty sure this is caused by the valves in the radiator cap being shot. Also do you have enough coolant in the motor

Re: upper and lower radiator hose collapsing (sleeperlude92)
 

thanks i'll try replacing it.