Ford Radiator Expansion/Overflow Tanks


Ford radiator overflow bottles and tanks

We all know that the radiator plays a key role in keeping our Ford running at the right temperature, cooling the engine down and preventing expensive damage to our engine and components.

But the cooling system in all makes and models of any vehicle is more complicated than just a simple system, with many components operating in tandem with each other for optimal performance.

One of these critical components is the Ford radiator expansion tank which is responsible for ensuring you have the right pressure in your system and prevent over-expansion that can cause leaking at best and major damage at worst.

This radiator overflow tank and bottle is partially filled with air, so the heated coolant is cushioned and will not over-expand, and there will not be too much pressure in the cooling system. It also acts as a visual guide to how your system works. If the expansion tank level drops or becomes empty, it shows there could be a problem like a leak somewhere in this part of your vehicle.

How to monitor your Ford’s radiator tank

Your mechanic should regularly inspect your cooling system for any errors, but this is one part of your overall engine that is easy to monitor yourself. You will be able to find the radiator tank at the upper right portion of your engine bay, at the top. It is made of semi-clear, durable plastic and will have brightly coloured coolant stored in it.

Pop the hood regularly and check on this tank, especially if you are noticing that your vehicle is overheating or performing poorly. If the tank and overflow bottles are empty, you will need to fill the radiator with coolant first. Ensure the fluid has cooled completely before trying this.

If you then find that your coolant is becoming exhausted quickly and/or your radiator tank is not refilling, you will need to have your vehicle inspected by a qualified mechanic.

Jefferson Ford has official parts available across the board. Designed for Falcons and Rangers, we have a variety to suit your needs. We also stock the full range of other components including AC compressors, water pumps and more.