my grand marquis defoster stop working and my heat blowing but its smoke coming out of my dash out of the vents what the problem

Asked by Dec 31, 2015 at 12:40 PM about the 1997 Mercury Grand Marquis

Question type: Maintenance & Repair

1 Answer


If it smells sweet then your heater core is leaking.

2 of 2 people found this helpful.

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