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.
Symptom Chart(s): Starting System
2021 Ford Edge SE, 4WDSECTION Symptom Chart(s): Starting System
WARNING: This page is about a different car, the 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods .
| Condition | Possible Sources | Actions |
|---|---|---|
| The engine does not crank -- without Push-button Start | Refer to Pinpoint Test | GO to Pinpoint Test A |
| The engine does not crank -- with Push-button Start | Refer to Pinpoint Test | GO to Pinpoint Test B |
| The engine cranks slowly | Refer to Pinpoint Test | PERFORM the starter system component test. REFER to Starter Motor - Positive Circuit Test |
| The engine cranks but will not start | Fuses PCM Fuel pump Fuel pump relay Run/start relay Starter Wiring |
Refer to Engine Controls - Symptom Charts (Except Diesel & Hybrid) |
| Unusual starter noise | Refer to Pinpoint Test | GO to Pinpoint Test C |
| The starter spins but the engine does not crank | Starter motor | INSPECT the starter motor mounting and engagement. REPAIR as necessary. |
| Damaged flexplate | INSPECT the flexplate for damaged, missing or worn teeth. REPAIR as necessary. | |
| The starter does not disengage from the flexplate | Starter relay Wiring, terminals or connectors |
REMOVE the starter relay. If the engine stops cranking, INSTALL a new relay. If the engine continues to crank, REPAIR circuit CDC35 (BU/WH) for a short to voltage. |
RENDER: 1.0x
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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.