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: NVH
2021 Ford Edge SE, 4WDSECTION Symptom Chart: NVH
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.
| Condition | Actions |
|---|---|
| Axle howling or whine | GO to Pinpoint Test G |
| Driveline clunk -- occurs as the vehicle starts to move forward following a stop | GO to Pinpoint Test I |
| Grinding, popping or chattering - noise from the rear axle when the vehicle is turning | GO to Pinpoint Test J |
| Grunting -- normally associated with a shudder experienced during acceleration from a complete stop | GO to Pinpoint Test K |
| Howl - can occur at various speeds and driving conditions. Affected by acceleration and deceleration | GO to Pinpoint Test L |
| Chuckle - heard at coast/ deceleration. Also described as knock | GO to Pinpoint Test M |
| Knock - noise occurs at various speeds. Not affected by acceleration or deceleration | GO to Pinpoint Test N |
| Scraping noise - a continuous low pitched noise starting at low speed | GO to Pinpoint Test O |
| Driveline shudder - occurs during acceleration from a slow speed or stop | GO to Pinpoint Test P |
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.