2003 FORD Mustang Windsor 4.6 SOHC/Modular 4.6 DOHC (SN95)
SN95 / 2-door coupe / convertible / North America primary, export to select global markets
Windsor 4.6 SOHCModular 4.6 DOHCWindsor 4.6 SOHC superchargedExact year/trim recordGold
Engine identity
Oils and fluids
Service and parts data
Common and chronic problems
- Ignition coil pack failure
- Cooling system leaks
- Intermediate shaft bearing wear (4.6L SOHC)
First checks
- Check for oil leaks at valve covers and oil pan
- Inspect timing chain noise on SOHC engines
- Verify function of cooling fans and thermostat
Before replacing parts
- Save fault codes and freeze-frame data before clearing anything.
- Check engine oil, coolant and transmission fluid using the correct temperature and service procedure.
- Verify power, ground, connectors, hoses, leaks and live data before replacing expensive parts.
Important notes
- 2003 model continued New Edge facelift launched in 1999, with Mach 1 returning in 2003 as a track-focused trim using 4.6L DOHC V8
- SVT Cobra uses supercharged 4.6L SOHC engine producing 390 hp; primarily North America market
- Export markets mostly received base and GT trims with Windsor V8 or 4-cylinder in other years, but 2003 Mustang was largely North America focused