How to Know When Your Air Bleed Housing is Failing

The air bleed housing assembly, or coolant bleeder housing, is a component in a vehicle’s cooling system that helps keep the engine at the correct temperature. When the housing assembly is failing or faulty, there are a few signs to look for to confirm the diagnosis.

Vehicle Leaking

Coolant leaking is a sign of a faulty air bleed housing assembly. Over time, the housing assembly can crack or split, even corrode, as it constantly comes in contact with the vehicle’s coolant. You need to check the area for leaks that can vary in size. Small leaks can produce a small amount of pooling liquid or vapor. Larger leaks can lead to significant puddles of coolant by the engine or under your car.

Broken Bleeder Valve

A bleeder valve can be stripped accidentally or corroded and stuck in the housing assembly. This causes the bleeder valve to be stuck inside. Since the valve is broken, it cannot function properly, which can cause the whole system to fail. Air can be stuck inside the system due to the broken bleeder valve and overheating of the engine can happen. The easiest way to replace the broken bleeder valve is to replace the whole air housing assembly.


If your engine overheats, it could be due to a bad air bleed housing. If the housing is cracked or split, leaks can occur, as mentioned above. Make sure you check the housing at all angles to confirm this is the root issue of the leaking.


To prevent an occurrence of housing damage, keep up with your vehicle maintenance. The housing assembly should be maintained and inspected during any coolant change or service. Also, avoid putting water in your cooling system as that can facilitate corrosion and rusting of vehicle parts. While a faulty housing unit will not stop you from driving the car, it will cause significant problems with ongoing use.

Find a full-line coverage of quality cooling system components at website domain.

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