2001 Mercury Grand Marquis - Exhaust in cabin, loud exhaust

smoking drivers floorboard ,sounds like hole in exhaust

Catalytic Converter can glogg up and get hot enough to catch the carpet/vehicle on fire…

Of course a little more detail about the smoking drivers floor boars would help… Could just have a hole in the exhaust and a rusted out floorboard letting the exhaust come in through the floor…

Or someone stole your catalytic convertor

As the lady in the Midas commercial said,

“Ya Muffla! Fix it!”

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