What is a radiator hose replacement?
A radiator hose replacement is a routine service to your vehicle engine’s cooling system. It involves inspecting and replacing the lines that convey coolant between different components under the hood. Replacing your radiator hoses (and flushing your coolant lines) proactively can help prevent engine damage and prolong the life of your vehicle.
What are the signs of a bad radiator hose?
A bad radiator hose (whether it’s leaky, blocked, or collapsed) will produce a multitude of problems relating to the engine temperature and performance. Here are some warning signs to watch for:
Coolant leaks: If you see any bright, sweet-smelling red, yellow, or blue (or green, or orange, etc.) puddles of fluid below your car, there’s a coolant leak somewhere.
Low coolant light: If there’s a leak and your car detects low coolant levels in the tank, it’ll put a warning light on the dash.
Engine overheating: If your engine’s thermostat climbs too high, it’s serious. Your vehicle will post a warning light on the dash, you might smell burning, and you could hear thumping or knocking noises. You might even see steam escaping from under the hood.
Malfunctioning heater: The heater repurposes the heat of hot coolant to make the cabin warm and toasty. If you can’t feel warm air coming from the vents, the culprit could be a blown radiator hose.
Bulging or collapsed radiator hoses: Block a radiator hose and the pressure will cause it to swell and distort. Nick it and the resulting vacuum will cause it to shrink and fall. Either one is a sign to take your car to the mechanic ASAP.
Key Takeaway A coolant leak, an overheating engine, and weirdly-shaped hoses are all symptoms of a failing radiator hose.
What’s the average lifespan of a radiator hose?
Radiator hoses generally have a lifespan of four to five years. As always, differences in manufacturing quality, frequency of use, and climate can prolong or shorten these estimates. Look for engine coolant additives (also known as surfactants) that reduce corrosion and friction if you want your coolant hoses to last longer.
Are radiator hoses easy to replace?
A radiator hose replacement is a fairly simple DIY job requiring basic equipment and the right repair manual. You’ll need a screwdriver, a utility knife, a drain pan, a coolant funnel, and wheel chocks. Don’t forget a replacement hose, coolant fluid, and personal protective gear! Depending on the age and condition of your vehicle, the most challenging part of the job might be dealing with the clamps on the old radiator hose.