Chart 6
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2005 Ford RV Cutaway, 2005 Ford Pickup, 2005 Ford F550 Super Duty, 2005 Ford F450 Super Duty, and 2005 Ford Excursion. However, it is still accessible from the selected car via links, so may be relevant.
- Unique Idle Concerns: Rolling Idle, Stalls When Engaging Clutch
- Runs Rough: Idle
Carry out the following preliminary checks:
- Check for correct engine oil level.
- Confirm oil change within 12,070 km (7,500 miles).
- Check air intake system: Air filter restriction gauge, inlet for obstruction/restrictions. RESET the air filter restriction gauge.
- Confirm acceptable SAE oil viscosity and API rating of oil.
- Check fuel quality. CARRY OUT the SUFFICIENT CLEAN FUEL Test.
| SYSTEM/COMPONENT | REFERENCE ( PINPOINT TESTS - 6.0L DIESEL unless noted) | ||
|---|---|---|---|
| Carry out the KOEO Injector Electrical Self Test (Click Test) | GO to the appropriate pinpoint test if a fault is indicated. | ||
| Low Idle Stability Test/Injection Control Pressure Test | CARRY OUT the LOW IDLE STABILITY (ICP PRESSURE) Test. | ||
| Check For Biased ICP Sensor | GO to Pinpoint Test Q . | ||
| Check Fuel Pump Pressure | CARRY OUT ELECTRIC FUEL PUMP PRESSURE Test. | ||
| Check Lubrication Pressure | REFER to ENGINE - 6.0L DIESEL for specifications. | ||
| Check Rough Idle | COMPLETE the Performance Diagnostics Form. (1) If rough idle was present when the vehicle was new or after installing a new high-pressure pump, CHECK the high-pressure oil pump. | ||
| Check For Engine Wear | CARRY OUT CRANKCASE PRESSURE TEST . If the crankcase pressure is greater than 15 mm Hg (8 in H2 O), REPAIR the engine as necessary. If the crankcase pressure is less than 15 mm Hg (8 in H2 O), GO to P: Misfire/Injector Driver Circuit Operation STEP P15. | ||
| Check EGR Operation | CARRY OUT the EXHAUST GAS RECIRCULATION (EGR) POSITION Test. | ||
| Check Injector Operation | CARRY OUT the INJECTOR INTERRUPT FOR ENHANCED DIAGNOSTICS Test. | ||
| Check For Aerated Oil | CARRY OUT the OIL AERATION TEST . | ||
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