Diagnosing for Leaking Cylinder Head Gaskets

Diagnosing for Leaking Cylinder Head Gaskets
Just a few quick tips: Aside from unusually high coolant temperature {this condition can be one of gradual increases over time}, bring the engine to operating temperature and check for bubbles in the coolant system…viewed through the open radiator fill neck. Short “blips” of the throttle should increase the intensity and size of any bubbles present. Another check involves running the engine, at operating temperature, for about two minutes at fast idle or cruise rpm. Allow the engine to cool and remove all spark plugs. Starter-crank the engine to observe any coolant displaced out the plug holes.
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