I turn on the heat and my windshield fogs up(even with the defroster on) and it smells like anitfreeze

Asked by Mar 19, 2015 at 09:20 AM about the 1999 Mercury Grand Marquis 4 Dr LS Sedan

Question type: Maintenance & Repair

2 Answers

251,495

Classis symptoms of a failed heater core which is located on the passenger side under the dash. Dash removal is necessary to replace.

1,345

Bad news, tough job. You could block it off, but no heater till you fix it.

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