Ranger 4WD V6-3.0L VIN U (1997)
Oil Pressure Regulator Valve: Testing and Inspection
Valve Spring Inspection
1. Inspect for breaks, cracks, tilting, and collapsed coils.
2. Use Valve/Clutch Spring Tester TOOL-6513-DD or equivalent to check valve spring tension. Check against specifications. A weak spring must be
replaced.
