Emission Control problems of the 1997 Mercury Grand Marquis

One problem related to emission control has been reported for the 1997 Mercury Grand Marquis. The most recently reported issues are listed below.

1 Emission Control problem

Automatic transmission and catalytic converter failed.

Manifold/header/muffler/tail Pipe problems	86
Engine Cooling System problems	21
Engine problems	4
Catalytic Convertor problems	3
Radiator problems	2
Engine Exhaust System problems	2
Engine And Engine Cooling problems	2
Cooling Fan problems	1
Emission Control problems	1
Gasoline Engine problems	1
Check Engine Light On problems	1
Engine Rattling And Whining Sounds problems	1

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