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 - 4.6L (2V)


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:
Floor mats
WARNING: Always use floor mats that are designed to fit the
footwell of your vehicle. Only use floor mats that leave the pedal
area unobstructed. Only use floor mats that are firmly secured to
retention posts so that they cannot slip out of position and inter ...
Pinpoint Tests
PINPOINT TEST P1464: DTC P1464: A/C DEMAND OUT OF SELFTEST
RANGE
Test Step
Result / Action to Take
P14641 RECHECK FOR THE DTC
YesGO to P14642 .
No
The system is functioning
correctly. This DTC will set if the
A/C is turned on when carryi ...
Installation
1. NOTE: If the oil pan is not secured within four minutes, the
sealant must be removed and the
sealing area cleaned with metal surface cleaner. Allow to dry until there is
no sign of wetness,
or four minutes, whichever is longer. Failure to follow this ...
