What to know about the Air Bleed Housing Assembly:
Coolant is important to engine operation throughout the year. It carries away heat that would otherwise kill the engine during operation, but it also shields against freezing during winter – normal water can freeze solid inside an engine, causing huge damage from expansion. However, coolant degrades over time and must be changed. Changing the coolant permits air into the system, which must be removed in order for the engine to function properly. Air in the coolant lines can cause many problems, including overheating and severe engine damage.
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The air bleed housing assembly, or air bleeder housing assembly if you prefer, is a simple setup generally found near the back of the engine that lets you to combat this problem. It is usually the highest point on the cooling system. It’s nothing more than a small housing with a bleeder nut attached. By opening the valve while the engine is running after a coolant change, air escapes out of the system and prevents overheating.
Facts to Note:
The air bleed housing assembly is not inspected during normal maintenance, but should be inspected during any coolant system service.
The air bleed housing assembly is made of metal, and running straight water in your system can cause problems including rust and corrosion that will require the assembly to be replaced.
How to Fix:
The air bleed housing assembly is confirmed to see if it needs to be changed
The faulty air bleed housing assembly is removed
The new air bleed housing assembly is installed
The air bleed housing assembly is tested for operation and leaks
The vehicle is tested to make sure proper operation of the air bleed housing assembly is achieved
The air bleed housing assembly on your car’s coolant system is vital after a coolant system change. If air is not removed from the lines, the engine could overheat from an airlock, causing damage as serious as a cracked block in extreme situations. Have the air bleeder housing assembly changed by one of your expert mechanics if it is corroded or inoperable.
Common symptoms indicating you may need to change the Air Bleed Housing Assembly:
Bleeder valve will not open
Bleeder valve or assembly is damaged in some way that compromises operation
The housing is leaking coolant.
Importance of this service:
SEE ALSO:HOW TO DO CAR VACUUM PUMP REPAIR
While the air bleed housing assembly isn’t critical to normal operation, it’s a vital part of your engine coolant system. If the bleeder valve is spoiled, or the assembly is corroded, we recommend changing it as soon as you can. It will not prevent you from driving your car, but it can cause serious issues after a coolant change.