What causes pressure in radiator hoses?
What causes pressure in radiator hoses?
When coolant near boiling passes through worn old radiator hoses, it increases the pressure in the radiator and in the hoses that connect it to the engine. Radiator hoses are designed to handle a specific amount of pressure; if that pressure increases to an excessive level, the hose will begin to swell and could burst.
Where are the coolant hoses on a car?
Of course, for it to do this, coolant has to cycle through the radiator from the engine. That job is handled by two radiator hoses – one at the top to handle the heated coolant, and one at the bottom for the cooled coolant. Radiator hoses are subject to a lot of wear and tear, including heat and pressure.
Why does upper radiator hose keep building up pressure?
Q: Upper radiator hose keeps building up a lot of pressure and popping off. Car loses coolant and over heats. My upper radiator hose keeps building alit of pressure and popping off and car loses coolant and overheats. I changed radiator cap after reading that could be problem. My car has 191400 miles. Hello, thank you for writing in.
How to get the top radiator hose to be hot?
1 Remove the splash tray and push the coolant catch tray in. 2 Remove the thermostat cap, usually on the top hose at the engine. 3 Clean the stat seat on the engine and cap. 4 Lube the new stat seal with fresh coolant and fit it, check the orientation (Jiggle valve up). 5 Tighten down the cap bolts and torque to approx 10Nm (89in lbs).
What does it mean when your radiator hose is soft?
If a radiator hose can be squeezed, it only means there isn’t 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.
Of course, for it to do this, coolant has to cycle through the radiator from the engine. That job is handled by two radiator hoses – one at the top to handle the heated coolant, and one at the bottom for the cooled coolant. Radiator hoses are subject to a lot of wear and tear, including heat and pressure.
What does the bottom hose on a radiator mean?
The bottom hose is the outlet hose of the radiator. So with the tstat in, that would indicate to me either a tstat issue, or the radiator is either plugged, or just cooling really well (which I doubt).
Why are the lower coolant hoses so durable?
Note that because lower coolant hoses are exposed to heavy amounts of suction from the engine’s water pump, a resilient spring is wound around the inside of them to ensure the hose does not collapse and block the flow of coolant. Like most components of modern hoses, these springs are quite durable over the long term.
What’s the name of the fifth coolant hose?
Bypass returns are generally short in length and are often considered a “fifth hose”. Although not commonplace, some engines such as this BMW V8 position their coolant bypass pipes internally in difficult-to-reach locations.
