Ford Mustang (1999-2004) Service Manual: Exhaust System (Description and Operation)

WARNING: The normal operating temperature of the exhaust system is very high. Never attempt to repair any part of the system until it has cooled. Be especially careful when working around the three way catalytic converter. The temperature of the three way catalytic converter rises to a high level after only a few minutes of engine operation.

CAUTION: When repairing 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. For additional information, refer to Section for location of the heated oxygen sensors.

The exhaust system:

  • contains dual three-way catalytic converters.
  • has a crossover pipe downstream of the three way catalytic converters (4.6L).
  • has two upstream heated oxygen sensors mounted before the three-way catalytic converters.
  • the production muffler and tailpipe assembly is a one-piece design exhaust system.

Exhaust System - 3.8L

Exhaust System - 3.8L

 

Exhaust System - 3.8L

Exhaust System - 4.6L (2V)

Exhaust System - 4.6L (2V)

 

Exhaust System - 4.6L (2V)

Exhaust System - 4.6L (4V)

Exhaust System - 4.6L (4V)

 

Exhaust System - 4.6L (4V)

    Exhaust System
    Torque Specifications ...

    Exhaust System (Diagnosis and Testing)
    Symptom Chart Condition Possible Sources Action Noisy or leaking exhaust Broken or loose clamps, hangers or isolators. Punctures in the muffler ( ...

    Other materials:

    Index Card
    Place an index card or a piece of paper between the weatherstrip and the sealing surface, then close the door. Slowly withdraw the index card or paper after the door is closed and check the amount of pressure on the weatherstrip. There should be a medium amo ...

    Wheel Hub and Bearing
    Removal CAUTION: Suspension fasteners are critical parts because they affect performance of vital components and systems and their failure can result in major service expense. A new part with the same part number or an equivalent part must be installed, if i ...

    Wheel
    Removal and Installation 1. Disconnect the battery ground cable (14301) and wait at least one minute to allow the depletion of the restraint system backup power supply. 2. Turn the steering wheel to the straight-ahead position and the ignition switch to ...