Ford Mustang (1999-2004) Service Manual: Piston - Selection

NOTE: The cylinder bore must be within the specifications for taper and out-of-round before fitting a piston.

1. Select a piston size based on the cylinder bore.

Piston - Selection

2. NOTE: For precision fit, new pistons are divided into three categories within each size range based on their relative position within the range. A paint spot on the new pistons indicates the position within the size range.

Choose the piston with the correct paint color.

  • Refer to the appropriate section in Group for the procedure

Piston - Selection

    Piston - Pin to Bore Diameter
    1. WARNING: Cover the end of the pin bore with a hand or shop rag when removing the retainer ring, since it has a tendency to spring out. Wear eye protection. NOTE: Piston and piston pins are a matc ...

    Piston - Ring End Gap
    CAUTION: Use care when fitting piston rings to avoid possible damage to the piston ring or the cylinder bore. CAUTION: Piston rings should not be transferred from one piston to another. NOTE: Cylin ...

    Other materials:

    Pinpoint Tests
    PINPOINT TEST A: THE ENGINE DOES NOT CRANK AND THE RELAY DOES CLICK Test Step Result / Action to Take A1 CHECK THE VOLTAGE TO THE STARTER RELAY YesGO to A2 . No REPAIR circuit 1050 (LG/VT) for an open. TEST the system for normal operation. ...

    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 material from the spark plug well before removing the spark plu ...

    Air Bag Supplemental Restraint System (SRS) (Diagnosis and Testing)
    Refer to Wiring Diagrams Cell 46 , Air Bag for schematic and connector information. Special Tool(s) Diagnostic Tool, Restraint System 418-F088 (105-R0012) Restraint System Diagnostic Tool Warning WARNING: This tool is for restraint system se ...