Symptom Chart - Noise, Vibration and Harshness (NVH)

WARNING: This page is about a different car, the 2007 Lincoln Mark LT and 2007 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Noise, vibration and harshness (NVH) symptoms will 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, refer to NOISE, VIBRATION AND HARSHNESS article. 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, refer back to NOISE, VIBRATION AND HARSHNESS article for the next likely system and continue diagnosis.

Condition	Possible Sources	Action
Noisy A/C compressor clutch	A/C compressor clutch air gap out of specification	CHECK and ADJUST the A/C compressor clutch gap if necessary. REFER to Air Conditioning (A/C) Clutch Air Gap Adjustment in this article. TEST the system for normal operation. If the A/C compressor clutch gap is OK, INSTALL an A/C compressor clutch. REFER to CLIMATE CONTROL article. TEST the system for normal operation.