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Symptom Chart: Noise, Vibration, and Harshness (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.

Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to: Diagnostic Methods .

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 - 6.2L V8 .
REFER to: Air Conditioning (A/C) Compressor - 6.8L Triton-30V - V10 .
REFER to: Air Conditioning (A/C) Compressor - 6.7L Power Stroke Diesel .
Excessive hissing from the plenum when the A/C is on Incorrect A/C refrigerant level CHECK the A/C refrigerant level. CARRY OUT the refrigerant system tests. Refer to the appropriate Refrigerant System Tests procedure in the appropriate Climate Control Systems article.
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