2006 Pt Cruiser has corrosion around thermostat housing--looks similar to corrosion on a battery except it is pink and flaky. The A/C stopped working about a year ago as well.
Just sounds like the thermostat gasket may have a tiny, tiny pin hole. Probably good Idea to have a new thermostat and gasket put in.
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#3Kelly Little AshfordReputation1,400