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2005 Honda Element – mystery air in engine cooling system

#895795
2005 Element
Wilf
Participant

[quote=”nightflyr” post=204303]On the same school of thought …
If it is leaking coolant out through a pin hole.
Then why is it not pushing fluid back into the over flow?
You can’t have half the equation work one way and the other half work in the opposite.[/quote]

Reservoir hose has no leaks and is unobstructed.
Squeezing one of the fat engine coolant hoses causes a slight volume increase in the reservoir level.
Pinhole leak appears at very bottom of radiator, so maybe gravity + shaking + time + heat/cool cycles is why the small leak manifests there – even though the system appears to be overflowing and up-taking normally.

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