Valve Springs
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2003 Ford Pickup, 2003 Ford F550 Super Duty, 2003 Ford F450 Super Duty, 2003 Ford Excursion, and 2003 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
- Check valve spring free length, out-of-square and pressure. Replace valve spring if not within specification. See VALVES & VALVE SPRINGS table under ENGINE SPECIFICATIONS.
- Measure valve spring installed height from bottom of spring seat in cylinder head to bottom of surface of spring retainer. Ensure valve spring installed height is within specification. See VALVES & VALVE SPRINGS table under ENGINE SPECIFICATIONS.