Chart 4
WARNING: This page is about a different car, the 2008 Ford Pickup, 2008 Ford F550 Super Duty, 2008 Ford F450 Super Duty, and 2008 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
- Unique Idle Concern: Slow Return to Idle, Fast Idle
Carry out the following preliminary checks:
- External fuel source.
- Engine not reaching normal operating temperature.
- Power take-off (PTO), auxiliary idle control, and charge protect devices engaged.
| SYSTEM/COMPONENT | REFERENCE (Section 5 Pinpoint Test unless noted) |
|---|---|
| Check Crankcase Oil Level | If overfilled, DRAIN the crankcase to the correct level. DETERMINE cause of overfill. |
| Check Engine Oil | If there is coolant or fuel contamination in the engine oil, REPAIR as necessary. |
| Check For Fuel Contamination | REFER toPERFORMANCE DIAGNOSTIC PROCEDURES . CARRY OUT the Sufficient Clean Fuel Test. |
| Check Engine Cooling (PIDS) | WARM engine to normal operating temperature. SELECT the engine oil temperature (EOT) PID. If EOT value is less than 38°C (100°F),refer to PINPOINT TEST L - Engine Oil Temperature (EOT) Sensor . |
| Check Turbocharger Ducting | REMOVE the turbocharger inlet air duct. INSPECT for debris/contamination. |
| Check the Exhaust Gas Recirculation (EGR) System | REFER toPERFORMANCE DIAGNOSTIC PROCEDURES . CARRY OUT the Exhaust Gas Recirculation (EGR) System Test. |
| Check PTO for Engagement | refer to PINPOINT TEST AN . |