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Coolant Smell In Cabin ?


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Hi guys, when I don´t drive 2 or more days (when the car is close to long) and then I come to my LS 400 1991 167K It smells Like the coolant in cabin but I checked all the hoses and didn´t find any cracks. Does anybody have advice ? Thank you

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Just to sure...

Most coolants have a sickeningly sweet odor.

It doesn't take much of a coolant leak to create LOTS of odor.

The water valve for coolant flow into the heater core is at the top center of the firewall in the engine compartment. That's the most common leak source, the hose fittings around this valve.

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