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Hi any one please help just replaced engine due to engine blown ive run the engine in and now its devoloped a new problem the heater is not working and my expantion tank next to the radiator keeps over flowing it also keeps bubbling after the engine is switched off any ideas any body :evil: :evil: :evil:
 

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Sounds like an airlock in the cooling system... Heater controls need to be on full, check the hoses and pipes to see if there is any additional bleed points (usually at high spots). If so, bleed until water comes through).
 

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if its not over heating ? then you have a airlock there and the person that fitted your engine should have had your cooling system flushed out.

if your temp gauge is over half then its over heating.
 
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