Ford Mustang (1999-2004) Service Manual: Inspection and Verification

1. Verify the customer concern by operating the engine to duplicate the condition.

2. Visually inspect for obvious signs of mechanical damage. Refer to the following chart.

Visual Inspection Chart

Mechanical

  • Engine coolant leaks
  • Engine oil leaks
  • Fuel leaks
  • Damaged or severely worn parts
  • Loose mounting bolts, studs and nuts

3. If the inspection reveals obvious concerns that can be readily identified, repair as necessary.

4. If the concerns remain after the inspection, determine the symptoms. GO to Symptom Chart .

    Engine (Diagnosis and Testing)
    Special Tool(s) Commercially Available Leakdown Tester Quick Disconnect Compression Tester 134-R0212 or equivalent Dial Indicator Gauge Adapter 303-007 (TOOL-6565-AB) ...

    Symptom Chart
    Condition Possible Sources Action Difficult starting Damaged ignition system. Damaged fuel system. Damaged starting system. Damaged charging ...

    Other materials:

    Exhaust Gas Recirculation (EGR) Valve
    Removal and Installation NOTE: The 4.6L, 2V is shown. The 3.8L is similar. 1. Disconnect the vacuum hose. 2. Disconnect the EGR tube from the EGR valve. 3. Remove the two bolts, the EGR valve and the gasket. 4. NOTE: Install a new gasket. To install, ...

    Exceptions To Normal Schedule
    Yellow Coolant Change coolant at 5 years or 160,000 km (100,000 miles) of the vehicle's life, whichever comes first. After the initial change, change coolant every 3 years or 80,000 km (50,000 miles) thereafter. Natural Gas and Propane Vehicles Insp ...

    Engine Coolant Temperature (ECT) Sensor - 4.6L (2V)
    Removal 1. Disconnect the battery ground cable. For additional information, refer to Section. 2. Partially drain the cooling system. For additional information, refer to Section. 3. Disconnect the engine coolant temperature (ECT) sensor (12A648) ...