General Diagnostic Table: Inspection

2014 Subaru Outback 2.5i, Standard TransSECTION Inspection
NOTE: Vibration while cruising may be caused by an unbalanced tire, improper tire inflation pressure, improper wheel alignment, etc.
Symptoms Possible cause Corrective action
Noise or vibration from propeller shaft 
  • Center bearing
  • Runout of propeller shaft
  • Loose or gap at connections
Inspect the propeller shaft. Refer to INSPECTION .
Abnormal wheel vibration  Wheel is out of balance. Check the wheel balance. Refer to WHEEL BALANCING .
Front wheel alignment Check the front wheel alignment. Refer to INSPECTION .
Rear wheel alignment Check the rear wheel alignment. Refer to INSPECTION .
Front strut Check the front strut. Refer to INSPECTION .
Rear shock absorber Check the rear shock absorber. Refer to INSPECTION .
Front drive shaft Check the front drive shaft. Refer to INSPECTION .
Rear drive shaft Check the rear drive shaft. Refer to INSPECTION .
Front hub unit bearing Check the front hub unit bearing. Refer to INSPECTION .
Rear hub unit bearing Check the rear hub unit bearing. Refer to INSPECTION .
Noise from the underbody  Wheel is out of balance. Check the wheel balance. Refer to WHEEL BALANCING .
Front wheel alignment Check the front wheel alignment. Refer to INSPECTION .
Rear wheel alignment Check the rear wheel alignment. Refer to INSPECTION .
Front strut Check the front strut. Refer to INSPECTION .
Rear shock absorber Check the rear shock absorber. Refer to INSPECTION .
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.