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

Special Tool(s)

Scraper, Piston Ring Groove 303-D033 (D81L-6002-D) or equivalent

CAUTION: Do not use a caustic cleaning solution or a wire brush to clean the pistons or damage can occur.

1. Clean and inspect the (1) ring lands, (2) skirts, (3) pin bosses, and the (4) tops of the pistons. If wear marks, scores or glazing is found on the piston skirt, check for a bent or twisted connecting rod.

Piston Inspection

2. Use the Piston Ring Groove Scraper to clean the piston ring grooves.

  • Make sure the oil ring holes are clean.

Piston Inspection

    Crankshaft - Connecting Rod Journal Taper, Out of Round
    1. Measure the crankshaft connecting rod journal diameters in two directions perpendicular to one another at each end of the connecting rod journal. The difference in the measurements from one e ...

    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 ...

    Other materials:

    Axle Assembly
    Removal and Installation 1. CAUTION: The vehicle must be on level ground and at curb height. Mark the rear shock absorbers relative to their protective sleeve. During installation, raise the suspension to this reference mark before tightening the suspens ...

    Engine (Disassembly)
    Special Tool(s) Service Set, Camshaft 303-017 (T65L-6250-A) Remover, Crankshaft Vibration Damper 303-009 (T58P-6316-D) Lifting Bracket Set, Engine 303-D095 (D94L-6001-A) or equivalent Remover, Power Stee ...

    Transmission Drive Cycle Test
    NOTE: Always drive the vehicle in a safe manner according to driving conditions and obey all traffic laws. NOTE: The Transmission Drive Cycle Test must be followed exactly. Malfunctions must occur four times consecutively for shift error DTC code to be set, ...