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)
2021 Ford Edge SE, 4WDSECTION Symptom Chart(s)
WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
Symptom Chart - Exhaust System
NOTE:
Aftertreatment components consist of some or all of the following components: Catalytic Converters, Gasoline Particulate Filters, Diesel Particulate Filters, Selective Catalytic Reduction Catalysts, Exhaust Gas Heat Exchanger.
Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods .
Symptom Chart
| Condition | Actions |
|---|---|
| Lack of power - vehicle performance complaint | GO to Pinpoint Test A |
| Odour from vehicle - possible sign of smoke | GO to Pinpoint Test B |
| Surface rust or degradation of surface treatment | GO to Pinpoint Test C |
| Noise such as buzzing, drumming, thumping, ringing or hissing coming from exhaust system | GO to Pinpoint Test D |
RENDER: 1.0x
NO RELATED
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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.