pressurized radiator hose?
04-24-2004, 09:13 AM
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pressurized radiator hose?
Okay, i did a search and couldn't find any results....
Was looking through the engine bay today and noticed that both my radiator hoses were "pressurized," they were kinda sucked in ... if that makes sense. Last time i checked they were normal, but when i opened my radiator cap, it let go of the pressure that was sucking the hoses.. does anyone know what caused this? And yes, my car does overheat.
Could it be air in the system? what would cause this to vaccuum the hoses in?
Was looking through the engine bay today and noticed that both my radiator hoses were "pressurized," they were kinda sucked in ... if that makes sense. Last time i checked they were normal, but when i opened my radiator cap, it let go of the pressure that was sucking the hoses.. does anyone know what caused this? And yes, my car does overheat.
Could it be air in the system? what would cause this to vaccuum the hoses in?
04-24-2004, 08:06 PM
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Re: pressurized radiator hose? (VinceVTEC)
well, if your radiator hoses are "sucked in", they wouldn't be under pressure, they would be under suction, aka vacumn...... unless i am misunderstanding you.
pressure would be if they were bulging.
pressure would be if they were bulging.
04-25-2004, 03:19 PM
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Re: pressurized radiator hose? (VinceVTEC)
doesn't matter if it's a new one...
the radiator cap maintains an approximate 13psi of pressure inside the radiator... as the engine heats up, the pressure increases. the cap opens a valve allowing the excess pressurized coolant to expel out into the overflow tank...
when the engine cools down, the pressure decreases inside the radiator. the lower temperature and lower pressure creates a "vacuum" inside a sealed coolant system, and the radiator cap NORMALLY opens allowing coolant in the overflow tank to get sucked back into the radiator.
NOW, if your radiator cap is not working properly, when the radiator is trying to "suck" the coolant from the overflow and is not able to, the radiator hose collapses. (it's like sucking though a straw with your finger plugging up the other side. try it next time you're at McDonalds or something...
when you open up the cap, you're just equalizing the pressure that the radiator cap was SUPPOSED to do.
the radiator cap maintains an approximate 13psi of pressure inside the radiator... as the engine heats up, the pressure increases. the cap opens a valve allowing the excess pressurized coolant to expel out into the overflow tank...
when the engine cools down, the pressure decreases inside the radiator. the lower temperature and lower pressure creates a "vacuum" inside a sealed coolant system, and the radiator cap NORMALLY opens allowing coolant in the overflow tank to get sucked back into the radiator.
NOW, if your radiator cap is not working properly, when the radiator is trying to "suck" the coolant from the overflow and is not able to, the radiator hose collapses. (it's like sucking though a straw with your finger plugging up the other side. try it next time you're at McDonalds or something...
when you open up the cap, you're just equalizing the pressure that the radiator cap was SUPPOSED to do.
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