Ford Mustang (1999-2004) Service Manual: Engine Emission Control
Torque Specifications

- Engine Emission Control (Description and Operation)
- Exhaust Gas Recirculation (EGR) Valve
- Exhaust Gas Recirculation (EGR) Valve - Cobra
- Exhaust Gas Recirculation (EGR) Valve - Mach I
- Exhaust Manifold to Exhaust Gas Recirculation (EGR) Valve Tube
- Exhaust Manifold to Exhaust Gas Recirculation (EGR) Valve Tube - Cobra
- Exhaust Manifold to Exhaust Gas Recirculation (EGR) Valve Tube - Mach I
- Differential Pressure Feedback Exhaust Gas Recirculation (EGR) System
- Exhaust Gas Recirculation (EGR) Vacuum Regulator Solenoid
- Positive Crankcase Ventilation (PCV) Hose
Spark Plugs
Removal and Installation
1. Remove the ignition coil-on-plug. For additional information, refer to
Ignition Coil-On-Plug in this
section.
2. NOTE: Use compressed air to remove any foreign materi ...
Engine Emission Control (Description and Operation)
CAUTION: Do not remove any part of the engine emission control system.
Operating the
engine without the engine emission control system will reduce fuel economy and
engine
ventilation. This will weak ...
Other materials:
Brake Booster - Hydro-Boost (Description and Operation)
The Hydro-Boost brake booster is a hydraulically operated brake booster
powered by the power
steering pump (3A674). The power steering pump provides the fluid pressure to
operate both the
power brake booster and the power steering gear (3504).
A Hydro-Boost ...
Component Tests
Idle Air Control (IAC) Valve
1. Open the hood.
2. NOTE: Key symptom is elevated idle speed while noise is occurring.
NOTE: "Snapping" the throttle can induce the noise.
Verify the condition by operating the vehicle for a short time.
3. Inspect the IAC valv ...
Pinpoint Tests
NOTE: Reinstall or install new evaporative emission hose clamps
removed or damaged during testing
procedures.
PINPOINT TEST A: DTC P0442 SMALL LEAK IN EVAP SYSTEM
Test Step
Result / Action to Take
NOTE: Condition P0442 DTC set: less than 0.62 ...
