Condition | Possible Sources | Actions |
|---|---|---|
First order driveshaft vibration | Driveshaft | Symptom Chart: NVH REFER to: Driveshaft (205-01 Driveshaft, Diagnosis and Testing). |
Second order driveshaft vibration | Axle shaft | Symptom Chart: NVH REFER to: Rear Drive Axle and Differential (205-02 Rear Drive Axle/Differential, Diagnosis and Testing). |
Third order driveshaft vibration | Drive axle | Symptom Chart: NVH REFER to: Rear Drive Axle and Differential (205-02 Rear Drive Axle/Differential, Diagnosis and Testing). |
Symptom Chart: Powertrain-Speed Related Vibrations
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 (307-01 Automatic Transmission - 6-Speed Automatic Transmission - 6R80, Diagnosis and Testing). orREFER to: Manual Transmission (308-03A Manual Transmission - 6-Speed Manual Transmission - MT82, Diagnosis and Testing). |
Transmission/transaxle mounts | Symptom Chart: NVH REFER to: Diagnosis By Symptom (307-01 Automatic Transmission - 6-Speed Automatic Transmission - 6R80, Diagnosis and Testing). | |
Accessory speed related vibration | Coolant pump(s) | Symptom Chart: NVH REFER to: Engine Cooling (303-03A Engine Cooling - 2.3L EcoBoost (231kW/314PS), Diagnosis and Testing). , REFER to: Engine Cooling (303-03B Engine Cooling - 3.7L Duratec (227kW/301PS), Diagnosis and Testing). or REFER to: Engine Cooling (303-03C Engine Cooling - 5.0L 32V Ti-VCT/5.0L Ti-VCT V8 (308kW/418PS), Diagnosis and Testing). |
A/C compressor motor | Symptom Chart: NVH REFER to: Climate Control System - Vehicles With: Dual Automatic Temperature Control (DATC) (412-00 Climate Control System - General Information, Diagnosis and Testing). or REFER to: Climate Control System - Vehicles With: Electronic Manual Temperature Control (EMTC) (412-00 Climate Control System - General Information, Diagnosis and Testing). |
Symptom Chart: Engine-Speed Related Vibrations
NOTE: When an engine-speed related vibration is present, engine, engine accessory and engine firing calculations should be carried out.
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.