LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2000 >> Excursion 6.8 S, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 923 (Engine - 6.0L Diesel -- F250-F550 Super Duty 6.0L (99P F450/550)) >> Diagnostic Tests >> Engine >> Symptom Chart

Symptom Chart

WARNING: This page is about a different car, the 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
Symptom Chart

Condition Possible Sources Action
  • Low oil pressure
  • Inaccurate gauge reading
  • INSTALL a new gauge.
 
  • Low oil level
  • ADJUST the oil level.
 
  • Oil dilution (fuel)
  • INSPECT the fuel injector O-rings.
 
  • Stuck open oil pressure regulator
  • INSTALL a new oil pressure regulator.
 
  • Scored/damaged oil pump
  • REMOVE the oil pump and inspect.
 
  • Damaged or misaligned oil filter drain back valve in the oil filter housing
  • INSTALL a new oil filter drain back valve.
 
  • Rear main gallery plug
  • REMOVE the transmission/flywheel and inspect.
 
  • Broken or damaged piston cooling jets
  • REMOVE the oil pan and inspect.
 
  • Front cover gasket leaks
  • REMOVE the front cover and inspect the gasket.
 
  • Missing gallery plugs
  • INSPECT for missing plugs.
 
  • Missing bearing shell(s)
  • REMOVE the crankshaft and inspect.
 
  • Restriction in the pickup tube or oil pan
  • REMOVE the oil pan and inspect.