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Home >> Ford >> 2012 >> Explorer Base, 3.5 8, AWD, 6F50 >> Repair and Diagnosis >> External Pages >> Different car >> Section 126 (Noise, Vibration & Harshness) >> Diagnosis And Testing >> Noise, Vibration and Harshness (NVH) >> Symptom Chart - Engine-Speed Related Vibrations

Symptom Chart - Engine-Speed Related Vibrations

WARNING: This page is about a different car, the 2013 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: When an engine-speed related vibration is present, engine, engine accessory and engine firing calculations should be carried out.
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 engine-speed related vibrations are normal though they should not be felt in the passenger compartment.
SYMPTOM CHART - ENGINE-SPEED RELATED VIBRATIONS

Condition Possible Sources Action
  • 0.5 order engine vibration
  • Engine
  • First through sixth order engine vibration
  • Engine
  • Transmission/transaxle
  • Refer to the appropriate Automatic Transaxle/Transmission article for the procedure. Refer to the appropriate Manual Transmission, Clutch and Transfer Case article for the procedure. GO to the SYMPTOM CHART .
  • Engine mounts
  • Transmission/transaxle mounts
  • Refer to the appropriate Automatic Transaxle/Transmission article for the procedure. Refer to the appropriate Manual Transmission, Clutch and Transfer Case article for the procedure. GO to the SYMPTOM CHART .
  • Exhaust system
  • Belt driven accessory speed vibration
  • Engine pulley
  • Coolant pump
  • Generator
  • A/C compressor
  • Power steering pump
  • Vacuum pump
  • Accessory drive belt