What does it mean when your top radiator hose is hard?
hard hoses can be a sign of the cylinder pressure entering the cooling system because of head gasket or cracks. The hoses are suppose to get hard as the engine reaches operating temp but you should be able to squeeze them especially after a short drive where the car reached operating temp.
What causes the radiator hose to collapse on a car?
At 195°F, the thermostat should be fully open. If the thermostat fails in the closed position, the water pump will attempt to pull coolant from the radiator and that can cause the upper radiator hose to collapse. However, this stuck radiator condition will also cause the engine to overheat.
When did upper radiator hose stop sucking flat?
Discussion in ‘ Engine Topic ‘ started by Philly78LT, May 11, 2005 . Hey guys we replaced the radiator cap and the upper radiator hose and the problem of the hose sucking flat stopped and the car was running at normal temp for awhile.
Why is the top of my radiator going flat?
Might be bad. Also start it witht he cap off, you should be able to see the coolant move. You should be able to stick your finger in and feel the water moving past your finger. The top hose was going flat?? The top hose is the return line, that shouldn’t compress flat. [This message has been edited by retorq (edited May 11, 2005).]
What should the pressure be on a radiator hose?
Caps are rated around 14–16 psi. Under normal circumstances, caps should release the negative pressure caused when an engine cools down and the liquid coolant contracts. They do lose their rating after years of use or sometimes they simply become too dirty to work. In these cases, all it takes to fix the issue is a new cap.
Why is the upper radiator hose sucking flat?
Hey guys we replaced the radiator cap and the upper radiator hose and the problem of the hose sucking flat stopped and the car was running at normal temp for awhile. Now its back to getting too hot even just idling for awhile, not sure if the radiator hose stopped getting flat because the newer one was stiffer or if that problem is solved.
What causes a radiator hose Cap to collapse?
Engine overheating is not necessarily a cause or effect of a collapsed hose. The most common cause for radiator hose collapse is a vacuum issue caused by a faulty radiator cap. Caps are rated around 14–16 psi.
Caps are rated around 14–16 psi. Under normal circumstances, caps should release the negative pressure caused when an engine cools down and the liquid coolant contracts. They do lose their rating after years of use or sometimes they simply become too dirty to work. In these cases, all it takes to fix the issue is a new cap.
What happens to a rubber radiator hose as it ages?
Rubber radiator hoses degrade over time and lose their ability to hold their shape.Rubber hoses deteriorate with age from the inside out. But they can also be damaged by oil. If you spill oil on a rubber radiator hose, you clean it off. Deteriorated radiator hoses lose their firmness and feel “spongey”.