Chart 13

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2004 Ford RV Cutaway, 2004 Ford Pickup, 2004 Ford F550 Super Duty, 2004 Ford F450 Super Duty, and 2004 Ford Excursion. However, it is still accessible from the selected car via links, so may be relevant.

Oil System Concerns: High Oil Consumption, Leaks

NOTE: Perform the following preliminary checks:

External leaks (rocker cover gasket, crankshaft seals, etc.).
Correct oil viscosity and API rating. Refer to operators guide.
Check air intake system: Air filter restriction gauge.
Loads do not exceed maximum GVW.

SYSTEM/COMPONENT	REFERENCE (PINPOINT TEST - 6.0L DIESEL unless noted)
Verify High Oil Consumption	CONFIRM oil consumption through maintenance records or other documentation. If records are not available, have operator log oil consumption 1,450 km (900 miles). If oil consumption rate is NOT higher than 0.95 liter (1 quart) per 900 miles, no problem exists. RETURN vehicle to consumer.
Check Base Engine	PERFORM Crankcase Pressure Test. REFER to DIAGNOSTIC SUBROUTINES - 6.0L DIESEL .
Isolate Turbocharger	REMOVE air duct at turbocharger compressor housing outlet. REPEAT crankcase pressure test. If crankcase pressure decreases, INSTALL a new turbocharger. VERIFY repair. If not, CHECK turbocharger for oil leak. Refer to the appropriate ENGINE article.