Exhaust System
WARNING: This page is about a different car, the 2009 Mercury Grand Marquis and 2009 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
When servicing the exhaust system or removing exhaust components, disconnect all heated oxygen sensors (HO2S) at the wiring connectors to prevent damage to the heated oxygen sensors and wiring harness.
NOTE:
The production muffler and tailpipe assembly is a one-piece design. The service muffler and tailpipe assembly is serviced with 2 pieces. Refer to the Master Parts Catalog for part usage and interchangeability before installing a new exhaust system component.
The exhaust system:
- contains a one-piece catalytic converter assembly on each side.
- has a single or dual exhaust system.
- has muffler brackets, with isolators at the muffler and the rear of the tailpipe, bolted to the body.
- has 2 heated oxygen sensors (HO2S).
- has 2 catalyst monitor sensors.
- production muffler and tailpipe assembly is a one-piece design exhaust system.