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I think I have a leak in my radiator because water came pouring out from under my car mazda 6s 2002. The only thing is when I opened my coolant cap it was still full. What could be the problem

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Can you tell from the liquid on the ground if it was antifreeze? Any evidence of steam? Any chance it was windshield solvent or from a/c condensation. –  mikes Oct 15 '13 at 23:53
    
Did you check when the Engine was hot or after allowing it to cool for sometime ? –  user3844 Oct 16 '13 at 14:52
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Did you check the radiator itself, or the overflow tank? If you lost coolant through a leak, the overflow would not be a good indicator of the level. You would need to check the pressurized system--after it's cooled off and no longer pressurized! –  Nick Oct 16 '13 at 15:17

1 Answer 1

Was the A/C running prior to this? It could be condensation from the A/C. Coolant tends to be pretty green and smelly so you'd have little trouble mistaking it for water.

The other option, as mentioned by mikes, is that you have a hole in your windshield cleaner bottle.

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Coolant or windshield cleaner will have distinctive colors and smells: you might want to suggest those as well. –  Bob Cross Oct 21 '13 at 12:07
    
yeah, but windshield cleaner could be mistaken for water. sometimes it even is water. –  vlsd Oct 21 '13 at 17:34

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