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Aug
Engine overheating is not necessarily a cause or effect of a collapsed hose. The old ones used metal blades on the impeller that drop to bits meaning it cant pump water anymore.
The water pumps job is to pump coolant from the engine block towards the radiator to cool the coolant down.
Top radiator hose hot. Either-way the top hose gets hot after the thermostat has opened. As for radiator hoses the top hose is genally hotter and breaks the most. What causes upper radiator hose swelling.
There are three primary causes for a hose to become swollen. The top radiator hose is were the hot coolant goes into the rad and the bottom provides cool to return. The water pumps job is to pump coolant from the engine block towards the radiator to cool the coolant down.
If the water pump is not functioning properly the water will stand still in the engine and no water will get pumped to the radiator. The lower coolant hose is most likely the coolant output side of your engine which means that the hose will stay cold. 1993 oldsmobile cutlass - over heat smell and some steam but mostly radiator cap and radiator are cool however hose leading from brand new thermostat is red hot.
Could this mean I now need a new pump. Turn the temperature control knob to the maximum hot position. Check the temperature of the heater inlet and outlet hoses by feel.
The air temperature around the hoses must be at least 85F 24 C. What can cause the top of the radiator hose to become swollen and the heat to no longer work. Community Answer The hose might have burst internally and if the coolant leaked or cant flow through properly you could be running without enough coolant to run the heat.
A collapsed radiator hose doesnt always make itself known so its best to be vigilant and look under the hood every now and then. 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.
Car problems can put people into great worries. If your cars lower radiator suddenly blows out cold air instead of hot it might make you scratch your head. Several things are responsible for the lower radiator hose cold problem as there are many components operating collectively to warm up your vehicle.
If a radiator hose can be squeezed it only means there isnt pressure in the cooling system but this can indicate a problem. Cooling systems are designed to hold pressure. This raises the boiling point of the coolant so it can run above 212 degrees Fahrenheit.
These signs suggest that maybe the thermostat is stuck open. If the top is full of hot water and the bottom is cold then there is a flor problem. Be it pump or a blocked radiator.
Sounds to me like the pump is bust to. The old ones used metal blades on the impeller that drop to bits meaning it cant pump water anymore. Locate the thick black hose that runs from the side of the radiator to the top or side of the main engine block.
Point the infrared thermometer where the hose connects to the engine and pull the trigger to measure the temperature. Wait until the number on the thermometer settles before writing the temperature down. The top radiator hose is were the hot coolant goes into the rad and the bottom provides cool to return.
This can be a restricted radiator or a water pump with worn off impeller fins. If you remove and test the thermostat to be okay then flush the radiator with both hoses disconnected to see if a lot of scale or debris is blocking it using a garden hose. It is harder to test the water pump.
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