That small hose is an overflow tube for the radiator. Ford radiators will typically release coolant until the fluid level is down just above the core. And they work fine after the equilibrium level is achieved. And there"s no point to topping it up again, as it will waste coolant.
The tube doesn"t normally blow off. Your overflow tube may be plugged. Check it out.
Re: Ford 3000 radiator HELP! in reply to sixbales, 01-05-2013 13:15:16
Thanks sixbales. I pulled the top of the overflow tube off and blew as hard as I could thru it. I can't tell if it was plugged but if it was, its not anymore. My operator's manual said that if the fluid level is more than an inch below the bottom of the filler neck to add more fluid. I topped it off b/c I looked in there and didn't see any fluid. Could that be b/c equilibrium was achieved? Should I drain a little fluid out before starting it up again? Also, where does the bottom of the overflow tube connect?
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