Question about 1991 Chevrolet Cavalier

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You will also smell antifreeze/Prestone Sweet smell if the heater core is leaking and the windshield will steam up in cold winter not to mention the obvious coolant loss. i would think if it's water, unless you are using water in the cooling system, then it could be caused by the AC when it's on. This is normal for the hoses to have moisture on them and you will see it on the ground underneath the car when the AC is running.

Posted on Jul 03, 2009

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If the core is bad you will most likely have a wet place on the front floor passenger side. If its dry the core is probably not leaking. You might just need a new section of heater hose. It could be original so replace the hoses first.

Posted on Jul 03, 2009

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No,it could b the heater control valve or a hose just leaking. Most of the time when the heater core goes bad the driver side floor will be wet and the windshield will fog up. And you will smell antifreeze.

Posted on Jul 03, 2009

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