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Home >> Ford >> 2004 >> Mustang Mach 1, Standard >> Repair and Diagnosis (Single Page) >> General Information >> OEM General Information >> Noise, Vibration & Harshness >> Diagnosis And Testing >> Noise, Vibration and Harshness (NVH) >> Symptom Charts >> Symptom Chart - Suspension Noise/Vibration

Symptom Chart - Suspension Noise/Vibration

SYMPTOM CHART- SUSPENSION NOISE/VIBRATION

Condition Possible Sources Action
  • Squeak or grunt-noise from the front suspension, occurs more in cold ambient temperatures. More noticeable over rough roads or when turning
  • Front stabilizer bar insulators.
  • Under these conditions, the noise is acceptable. CHECK TSBs.
  • Clunk-noise from the front suspension, occurs in and out of turns
  • Loose front struts or shocks.
  • INSPECT for loose nuts or bolts. TIGHTEN to specifications. REFER to FRONT in Suspension .
  • Clunk-noise from the rear suspension, occurs when shifting from reverse to drive
  • Loose rear suspension components.
  • INSPECT for loose or damaged rear suspension components. REPAIR or INSTALL new components as necessary. REFER to REAR - EXCEPT COBRA or REAR - COBRA in Suspension .
  • Click or pop - noise from the front suspension. More noticeable over rough roads or over bumps
  • Worn or damaged ball joints.
  • CARRY OUT a ball joint inspection. INSTALL new ball joints or control arms as necessary. REFER to FRONT in Suspension .
  • Click or pop (FWD vehicles) - noise occurs when vehicle is turning
  • Worn or damaged ball joints.
  • CARRY OUT a ball joint inspection. INSTALL new ball joints or control arms as necessary.
  • Click or snap - occurs when accelerating around a corner
  • Damaged or worn outboard CV joint.
  • INSPECT the outboard CV joint and boot. REPAIR or INSTALL a new CV joint as necessary.
  • Front suspension noise-a squeak, creak or rattle noise. Occurs mostly over bumps or rough roads
  • Steering components.
  • Loose or bent front struts or shock absorbers.
  • Damaged spring or spring mounts.
  • Damaged or worn control/radius arm bushings.
  • Worn or damaged stabilizer bar bushings or links.
  • Rear suspension noise-a squeak, creak or rattle noise. Occurs mostly over bumps or rough roads
  • Loose or bent rear shock absorbers.
  • Damaged spring or spring mounts.
  • Damaged or worn control arm bushings.
  • Worn or damaged stabilizer bar bushings or links.
  • Shudder-occurs during acceleration from a slow speed or stop
  • Rear drive axle assembly mispositioned.
  • CHECK the axle mounts and the rear suspension for damage or wear. REPAIR as necessary.
  • Incorrect or high CV joint operating angle.
  • CHECK vehicle ride height is within limits. REPAIR as necessary.
  • Damaged or worn front suspension components.
  • CHECK for a loose stabilizer bar, damaged or loose strut/strut bushings or loose or worn ball joints. INSPECT the steering linkage for wear or damage. REPAIR or INSTALL new components as necessary.
  • Shimmy-most noticeable on coast/deceleration. Also hard steering condition
  • Excessive positive caster.