Auto Systems and Repair
Upper Radiator Hose Replacement
An engine has two radiator hoses: upper and lower. The upper hose carries hot coolant (a mixture of water and antifreeze) from the engine to the radiator to be cooled. The lower hose brings coolant that has been cooled in the radiator to the engine, where it circulates and absorbs heat. The radiator hoses are located be engine.
Radiator hoses are made from rubber so they deteriorate over time. Periodically check for cracks, damage, swelling, or contamination due to oil leaks.
To replace a radiator hose, the cooling system is drained. The clamps securing the radiator hose are removed, and the hose is replaced. The radiator is filled with coolant, air is removed from the system, and the engine is started and brought to normal operating temperature.
