Symptom Chart: Noise, Vibration, and Harshness (NVH)
WARNING: This page is about a different car, the 2015 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 .
Symptom Chart
| Condition | Possible Sources | Actions |
|---|---|---|
| Noisy A/C compressor | A/C compressor bearing worn | INSPECT the A/C compressor bearing for roughness. If bearing roughness is found, INSTALL a new A/C Compressor. REFER to: Air Conditioning (A/C) Compressor - 2.7L EcoBoost (238kW/324PS) . REFER to: Air Conditioning (A/C) Compressor - 3.5L EcoBoost (272kW/370PS) . REFER to: Air Conditioning (A/C) Compressor - 3.5L Duratec (209kW/284PS) . REFER to: Air Conditioning (A/C) Compressor - 5.0L 32V Ti-VCT . |
| Excessive hissing from the plenum when the A/C is on | Incorrect A/C refrigerant level | CHECK the A/C refrigerant level. REFER to: Refrigerant System Tests - 2.7L EcoBoost (238kW/324PS) . REFER to: Refrigerant System Tests - 3.5L EcoBoost (272kW/370PS) . REFER to: Refrigerant System Tests - 3.5L Duratec (209kW/284PS) . REFER to: Refrigerant System Tests - 5.0L 32V Ti-VCT . |