My antifreez is disappearing.

Asked by Feb 16, 2016 at 05:22 AM about the 2006 Chevrolet Malibu

Question type: General

I was losing anti freeze about every day. I
have had head gaskets replaced, spark
plugs, hoses, the reservoir cap, and now just
the radiator after having a pressure test
done. They said if it was an internal leak the
pressure would have dropped, or something
like that so said it was a blocked radiator
and it was evaporating. Well that's been
fixed, and after two days it's low after being
completely full Saturday.

3 Answers


It's going somewhere. Is the inside of the car wet, maybe a leaky heater core and or check the trans fluid, as it might be mixing in there. If nothing, maybe try another mechanic?

Definitely need to try another mechanic. I've been told maybe heater core but my floor is never wet and my heater works great. But I can sometimes smell something weird when I'm driving. Is it possible it is an un noticeable leak from the resevrouir? There was a little left last night and by this morning it was gone.


yes, the reservoir could have a crack in it and the coolant evaporating before you see it leak. After you drive the car and it's fully warmed up, open the hood as soon as you park it, you might see or smell the coolant.

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