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 2018 Ford F-550 Super Duty, 2018 Ford F-450 Super Duty, 2018 Ford F-350 Super Duty, and 2018 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
NVH symptoms should be identified using the diagnostic tools that are available. For a list of these tools, an explanation of their uses and a glossary of common terms, Since it is possible any one of multiple systems may be the cause of a symptom, it may be necessary to use a process of elimination type of diagnostic approach to pinpoint the responsible system. If this is not the causal system for the symptom, for the next likely system and continue diagnosis.
| Condition | Possible Sources | Action |
|---|---|---|
| Vibration - a high frequency (20-80 Hz) that is felt through the seat or selector lever. Changes with engine speed | Selector lever cable incorrectly routed, grounded out or loose | CHECK the selector lever cable. REPAIR as necessary. Refer to: Selector Lever Cable - 6-Speed Automatic Transmission - 6R100 . Refer to: Selector Lever Cable - 6-Speed Automatic Transmission - 6R140 . |
| Rattle, buzz or other noise | Selector lever loose | TIGHTEN the selector lever bolt. |
| Exterior noise | Selector lever cable assembly grommet, Torn selector lever cable assembly grommet | INSTALL new selector lever cable. Refer to: Selector Lever Cable - 6-Speed Automatic Transmission - 6R100 . Refer to: Selector Lever Cable - 6-Speed Automatic Transmission - 6R140 . |
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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.