What is an air bleed housing assembly replacement?

This service replaces an important part of your engine system. 
The air bleed housing assembly prevents oxygen from entering the coolant lines whenever you change the coolant in your vehicle. The assembly has an attached valve that allows air to escape while the engine is running. 
If the air bleed housing assembly stops working correctly, too much trapped air can cause your engine to overheat or malfunction.
It’s a good idea to have this service performed as soon as you notice a problem, especially after you’ve just had a coolant change.
Total costs for this service usually average $200 to $400.

How to replace an air bleed housing assembly

If your mechanic determines that the air bleed housing assembly isn’t working, they will remove and replace it. 
Then, they’ll test the new system to make sure it is working correctly and to double-check that there are no leaks. 

How do I know if I need an air bleed housing assembly replacement?

You are most likely to notice a malfunctioning air bleed housing assembly after a coolant change. Look out for one of these warning signs:
  • Coolant is leaking from the assembly 
  • The bleeder valve attached to the air bleed housing assembly won’t open
  • The housing assembly or the bleeder valve aren’t functioning normally

How important is an air bleed housing assembly replacement?

Getting an air bleed housing assembly replacement is an important way to prevent further damage to your car’s coolant system. If untreated, this malfunction could cause your engine to overheat—potentially even causing a cracked engine block.
Although you will still be able to drive a while before getting the assembly replaced, it’s best to have this service performed sooner rather than later.

Tips for air bleed housing assembly replacement

Whenever you get a coolant change, make sure that the air bleed housing assembly gets inspected. 

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