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Home >> Lincoln >> 2018 >> MKZ Select, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1475 (Noise, Vibration And Harshness (Except Electric)) >> Diagnosis And Testing >> Noise, Vibration and Harshness (NVH) >> Symptom Charts >> Symptom Chart: Powertrain-Speed Related Vibrations

Symptom Chart: Powertrain-Speed Related Vibrations

WARNING: This page is about a different car, the 2018 Ford Focus. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Any assembly that is out of balance will only cause a first order vibration, it will not cause a higher order vibration.
NOTE: Some powertrain-speed related vibrations are normal though they should not be felt in the passenger compartment.

Symptom Chart 

Condition  Possible Sources  Actions 
First through sixth order powertrain vibration Transmission/transaxle Symptom Chart: NVH REFER to: DIAGNOSIS BY SYMPTOM .
Transmission/transaxle mounts Symptom Chart: NVH REFER to: Four-Wheel Drive Systems .
Accessory speed related vibration Coolant pump(s) Symptom Chart: NVH REFER to: ENGINE .
A/C compressor motor Symptom Chart: NVH REFER to: Climate Control System - Vehicles With: Dual Automatic Temperature Control (DATC) . or