Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD2004ECONOLINE E150, VAN CARGO, 4.6 WREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 90 (ENGINE CONTROLS - SYSTEM & COMPONENT TESTING - 7.3L DIESEL)ENGINE PERFORMANCE DIAGNOSTIC PROCEDURESTEST 6: RETRIEVE/CLEAR CONTINUOUS MEMORY DTCSPURPOSE
2004 Ford Econoline E150, Van Cargo, 4.6 W
Test 6: Retrieve/Clear Continuous Memory DTCS: Purpose
2004 Ford Econoline E150, Van Cargo, 4.6 WSECTION Purpose
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2003 Ford RV Cutaway, 2003 Ford Pickup, 2003 Ford F550 Super Duty, 2003 Ford F450 Super Duty, and 2003 Ford Excursion. However, it is still accessible from the selected car via links, so may be relevant.
The purpose of this test is to determine if PCM has detected any historical or intermittent fault conditions that would cause a performance symptom. The condition that caused a Continuous Memory DTC may no longer exist.
NOTE:
The IDM stores both historical and hard IDM DTCs. To retrieve IDM DTCs, you must perform KOEO ON-DEMAND SELF-TEST or KOEO INJECTOR ELECTRICAL TEST. To ensure that DTC is a hard fault, you must first clear Continuous Memory DTCs. Ensure to record all DTCs before clearing even though IDM DTCs do not show up on Continuous Memory display. If an IDM DTC is set, repeat KOEO ON-DEMAND SELF-TEST. This is a hard fault.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.