Excursion 4WD V8-6.0L DSL Turbo VIN P (2004)
b.
Use Motorcraft(R) Cetane Booster and Performance Improver (ULSD Compliant), or Motorcraft(R) Anti-Gel and Performance Improver
(ULSD Compliant) to see if symptoms improve. Motorcraft(R) Cetane Booster and Performance Improver (ULSD Compliant) will typically
reduce white smoke related to fuel quality within 20 miles of driving. Continued use of Motorcraft(R) Cetane Booster and Performance
Improver (ULSD Compliant) will aid in the removal of fuel quality related coking deposits.
4.
Review vehicle maintenance history/records. Refer to the Owner's Guide for recommended service intervals and oil grade/viscosity based on
vehicle use and ambient temperature. Calculate engine operating hours versus odometer accumulation when selecting appropriate maintenance
schedule. 2005 model year (MY) and forward are equipped with an hour meter as part of the odometer. Ensure the proper maintenance schedule
and oil viscosity / grade is in use. Oil additives that thicken engine oil and poor maintenance can delay commanded injector response. Several oil
changes with driving cycles may be required to flush the engine of residual additives and/or degraded oil.
5.
Check for excessive oil carryover to air inlet system. Inspect turbo compressor inlet and outlet for oil.
a.
Validate proper air intake flow. Check air filter minder by performing PC/ED Section 4:
Diagnostic Subroutines / Performance Diagnostic Procedures / Intake Restriction. Excessive inlet restriction may cause oil carryover from
crankcase vent.
b.
Validate crankcase pressure by performing PC/ED Section 4: Diagnostic Subroutines / Per[ormance Diagnostic Procedures / Crankcase
Pressure Test. Repair base engine concern if pressures exceed specification.
c.
Check Oil Level. Suggest oil level be set to the middle of the operating range on the dip stick after an oil change.
d.
Validate no internal turbo oil leak by referring to Workshop Manual (WSM), Section 303-04D.
6.
Ensure proper operation of engine cooling system and electronic fan clutch. Refer to WSM, Section 303-03 and Section 05, PPT AH of the
PC/ED. Repair as necessary if any concerns are found.
7.
Verify engine oil temperature (EOT) correlation with engine coolant temperature (ECT).
a.
Drive vehicle at wide open throttle (WOT) / high load / maximum boost.
b.
Observe ECT and EOT PID's on IDS Datalogger. EOT maximum temperature differential might occur at throttle tip-out.
c.
If EOT exceeds ECT by 15 °F (8°C) replace the oil cooler.
8.
Ensure vehicle is latest calibration level; these calibrations include the following improvements which will effect component coking:
a.
Shut off EGR after 5 minutes of idling to reduces the amount of hard to combust elements in the combustion chamber.
b.
Injection timing improvements at 1100-1800 RPM (Typical range for power take-off (PTO) operation / Cold Ambient Protection Idle
Kicker / Battery Charge Protect Idle Kicker).
c.
Increased exhaust pressure / variable geometry turbocharger (VGT) Duty Cycle for Auxiliary Powertrain Control Module (APCM) or PTO
commanded engine speeds. Maintains heat in the combustion chamber.
d.
Higher engine temperature required for cold ambient idle kicker to switch off. Idle will remain elevated until driver input is observed by
PCM. Maintains heat in the combustion chamber.
e.
Improved EGR throttle plate self test. Better control of hard to combust elements.
9.
Perform IDS Air Management Test. Verify EGR and turbo functionality. If turbo fails and are removing the turbo, verify the fat drain pipe is
installed. Identify the fat drain pipe tube by its end configuration; the new larger tube has a wide inner shoulder and a tube OD larger than the
0-ring groove bottom.
10.
Inspect the EGR valve for the presence of wet oil. The installation of an EGR Baffle Kit can help reduce the wet oil from accumulating on the
EGR valve. Follow 2008-2009 E-350 I E-450 WSM, Section 303-08 for installation.
