What causes an upper radiator hose to swell?
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.
What causes upper radiator hose burst?
The most common cause for radiator hose collapse is a vacuum issue caused by a faulty radiator cap. Another common problem is clogging of the smaller radiator runoff hose, which leads to the coolant tank. As the engine cools, if fluid cannot return to the tank, this will also cause a vacuum.
Are radiator hoses supposed to expand?
no that is not normal. it sounds like you may have a blown head gasket. exhaust gases are getting into your cooling system and causing a pressure build up which is making your upper radiator hose to puffup like a ballon.
Should you be able to squeeze the top radiator hose?
Hoses should not be swollen or cracked, both of which could lead to a failure. Perform a squeeze test. While the engine is warm after a drive, squeeze the radiator hoses, paying particular attention to areas where the hose bends. A radiator hose in good condition should feel firm, but not hard.
What kind of radiator hoses do Toyota use?
If you find that you need a new radiator hose, we carry Toyota OEM radiator hoses for your model. OEM radiator hoses are exact fit replacements. If you get the right part number for your model, it will be the correct width and length. OEM radiator hoses are made from quality materials that last as long as the original hoses.
Do you need new radiator hoses for Toyota Echo?
OEM radiator hoses meet Toyota’s factory standards for performance. When you need new OEM Toyota parts and accessories for your vehicle whether it’s the Echo or the Prius Prime, we can help you save money.
What should I do about my Toyota pickup radiator?
Prevent your engine from overheating and suffering serious damage by purchasing the right type of Toyota Pickup radiator and treating it well. Regular check-ups include draining and refilling your radiator with antifreeze so you can prevent corrosion and rust from taking over your cooling system.