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  • Antifreeze and Engine Coolant

Why would the antifreeze in your car smell like fish?

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βˆ™ 2013-08-30 02:25:15

Best Answer

I have never smelled coolant that smelled like fish. It usually smells sweet. I suggest you do a complete coolant system service. Drain, flush, replace thermostat, install a 50/50 mix of proper coolant and distilled water, bleed air from system.


It has gone bad and needs flushed and replaced! Hopefully that's all that wrong with it


It's good to flush the system, but the anti freeze is within the engine and internal heating circuit and should be sealed. Therefore if you can smell it you have a leak, so flush but also find the leak.

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βˆ™ 2013-08-30 02:25:15
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