Engine Controls - Tests W/Codes - 5.0L: Summary
If no service code or Code 11-1-11 or 111-1-111 (pass code) is present, but driveability problem still exists, proceed to EEC-IV DIAGNOSIS BY SYMPTOM . If driveability problem still cannot be located, go to TESTS W/O CODES article in the ENGINE PERFORMANCE Section for diagnosis by symptoms or intermittent diagnostic procedures.
EEC-IV DIAGNOSIS BY SYMPTOM
| Symptom | Application | Circuit Test | ||
|---|---|---|---|---|
| A/C Compressor Runs Continuously | 2.3L & 4.9L | KM - Step 35) | ||
| A/C Does Not Cut Off During WOT | All Models | KM - Step 15) | ||
| A/C Not Functioning | All Models | KM - Step 1) | ||
| Black Exhaust Smoke | Except 7.3L | H - Step 1) | ||
| CHECK ENGINE Light Always On | (1)Except 7.3L | ML - Step 1) | ||
| CHECK ENGINE Light Flashing With Erratic Idle | (1)Except 7.3L | ML - Step 15) | ||
| CHECK ENGINE Light Never On | (1)Except 7.3L | ML - Step 4) | ||
| CHECK ENGINE Light On Intermittently | (1)Except 7.3L | ML - Step 10) | ||
| Difficult Start | Ranger 2.3L | NB - Step 25) | ||
| Engine Detonates | 2.3L & 4.0L | KP - Step 5) | ||
| Engine Hesitates After Hot Restart | (1)Except 7.3L | H - Step 21) | ||
| Engine Hesitation | (1)Except 7.3L | S - Step 2) | ||
| Engine Lacks Power Or Loses Power | (1)Except 7.3L | S - Step 2) | ||
| Engine Miss At Idle, Acceleration Or Cruise | (1)Except 7.3L | S - Step 2) | ||
| Engine Runs Rough At All Times | (1)Except 7.3L | S - Step 2) | ||
| Engine Stalls | Except 7.3L | S - Step 2) | ||
| Engine Stalls During Transmission Downshift | Models With E4OD | TC - Step 1) | ||
| Engine Stalls During Transmission Engagement | Models With E4OD | TC - Step 1) | ||
| Engine Stalls When Parking | Models With PSPS | FF - Step 3) | ||
| Engine Surge At Acceleration Or Cruise | (1)Except 7.3L | S - Step 2) | ||
| Engine Surge At Idle With A/C On | (1)2.3L | KM - Step 30) | ||
| Erratic RPM | (1)Except 7.3L | S - Step 2) | ||
| Gasoline Fumes | Models With CANP | KD - Step 1) | ||
| Late Shift Into 4x4 High | Models With E4OD | TB - Step 5) | ||
| Low Idle With A/C on | Except 7.3L | KM - Step 43) | ||
| Overdrive Cancel Indicator Off | Models With E4OD | TB - Step 4) | ||
| 4x4 Low Light Always Off & Harsh Shift | Models With E4OD | TB - Step 2) | ||
| 4x4 Low Light Always On & Shift Slipping | Models With E4OD | TB - Step 2) | ||
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