Mercury Grand Marquis
exhaust system Problems
We don't have a lot of Mercury Grand Marquis exhaust system problems on file — feel free to add yours here. The most common Grand Marquis exhaust system problems cost $600 to fix & occur at 100,000 miles.
The worst model years for exhaust system problems are the 2004 Grand Marquis, 2003 Grand Marquis, and the 2001 Grand Marquis.
Worst Mercury Grand Marquis Exhaust System Problems
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#1: Catalytic Converter Failure 2004 Grand Marquis
- Average Cost to Fix:
- $600
- Average Mileage:
- 72,000 mi
-
#2: Check Engine Light On, Poor Gas Mileage 2003 Grand Marquis
- Average Cost to Fix:
- N/A
- Average Mileage:
- 30,000 mi
-
#3: Intake Manifold Cracked 2001 Grand Marquis
- Average Cost to Fix:
- N/A
- Average Mileage:
- 200,000 mi