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04 Civic Ex coolant reservoir lowering

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Old 03-15-2024
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04 Civic Ex coolant reservoir lowering

I’ve been keeping my eye on my coolant levels and it looks like the overflow tank is getting low pretty fast when checking while cold, but my radiator level stays full. No coolant leaks that I can find anywhere, the driver side floorboard has had a wet spot everytime i’ve checked but i’m almost certain it’s just water. As for it being the head gasket, no smoke, heat works perfect, no bubbling, no milky oil, there is a little bit of black liquid whenever I take off the radiator cap, it’s a small few drops that just float at the very top. Any help would be appreciated i’m lost at what’s happening.
Old 03-15-2024
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Re: 04 Civic Ex coolant reservoir lowering

you are doing the wrong tests for gasket
video in the first post have the test explained

https://www.civicforums.com/forums/3...reference.html
Old 03-16-2024
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Re: 04 Civic Ex coolant reservoir lowering

It's going somewhere, you can get a coolant tester to pressurize the system
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