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:

    Key Programming - Additional Key With One Programmed Key
    Special Tool(s) Worldwide Diagnostic System (WDS) 418-F224, New Generation STAR (NGS) Tester 418-F052, or equivalent diagnostic tool NOTE: This procedure is used when a customer needs to have an additional key programmed into the veh ...

    Removal
    1. Disconnect the battery negative cable. 2. Drain the engine cooling system. 3. Remove the LH exhaust manifold. For additional information, refer to Exhaust Manifold-LH in this section. 4. Remove the lower intake manifold. For additional informatio ...

    Vehicle Identification Number (VIN) Locator
    The vehicle identification number (VIN) is a seventeen-digit alphanumeric code. The VIN is stamped on a metal tab riveted to the instrument panel, top upper left of the dash. The VIN number is also found on the vehicle certification (VC) label.   ...