For the last couple of days while I'm driving it gets hot then my bottom radiator hose bursts off and I lose all my coolant. At first I thought. "Oh I must not have put the clamp on correctly"... so I put those hose as far on as possible and clamp it back down. The next night I go for a run up through the canyon and at the top it blows off again. Luckily I had tools and hose clamps and got water from someone passing. I tighten the hose clamp as much as possible and it seemed fine until today. I pull up to my girlfriends house and right as I park it blows again. This time it was the bottom of the radiator. My question is Why the hell is this thing creating that much pressure? Could it be that the thermo is stuck shut? Any help would be awesome.

Thanks

 

if the thermostat was shut, shouldn't it overheat? how old are the hoses?

 

replace the radiator cap.

 

It does overheat. The hoses we're probably never changed. I have an extra rad cap so im gonna go put that on right now.