offtheheezay Posted March 6, 2015 Share Posted March 6, 2015 So my radiator in my 98 civic (lx) is on the older side. It has a fair amount of rust built up on it but it seems to work along with the fan. It also always stays full, I don't even remember the last time I had to put coolant in it. The overflow reservoir on the other hand, seems to empty within about 3 days or so (less if the weather is hot consecutively.) So I'm really wondering where all that water is going from the overflow reservoir. The radiator is filled with radiator coolant, but the overflow reservoir I fill with just water. My uncle is an old mechanic and the overflow has had water in it since I got the car. Not sure why. I just don't understand where all the water from the overflow is going so fast. I know there's no leaks, I don't think the water is going into the engine block because the exhaust doesn't leak water, and the car doesn't overheat. Like I said, it's odd because the radiator never loses any coolant. I thought maybe it's just evaporating or something because I live in california but it really hasn't been all that hot enough lately. If anyone has any ideas as so whats causing the overflow reservoir to empty out like that, please let me know! Should I just straight up buy a new radiator altogether? I'd like to figure out the issue before I start throwing money into the car though. Thank you in advance for any solutions! Much love. Link to comment Share on other sites More sharing options...
Humphries Posted March 16, 2015 Share Posted March 16, 2015 find the leak. Link to comment Share on other sites More sharing options...
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