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:

    A/C Compressor Pressure Relief Valve
    An A/C compressor pressure relief valve is incorporated into the compressor A/C manifold and tube to: relieve unusually high refrigerant system discharge pressure buildups. For specifications regarding operating pressure(s), refer to Section. prevent ...

    Halfshaft Joint
    Special Tool(s) Driver 205-199 (T83T-3132-A1) Hub Bearing Cup Replacer 205-147 (T80T-4000-P) Sensing Ring Replacer 206-041 (T89P-20202-A) Disassembly 1. CAUTION: Do not disassemble the halfshaft assembly. Install a new assem ...

    Principles of Operation
    There are four main principles involved with the basic theory of operation: heat transfer latent heat of vaporization relative humidity effects of pressure Heat Transfer If two substances of different temperature are placed near each other, t ...