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Noise Diagnosis - Front Suspension (2004)

WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Any noise emitted from the front of the vehicle that is induced by VEHICLE SPEED or DRIVING TERRAIN as related to the front suspension.
  1. Did you review the General Description and perform the necessary inspections? If yes, go to step  2. If no, go to SYMPTOMS - SUSPENSION GENERAL DIAGNOSIS .
  2. Attempt to duplicate the condition. Road test the vehicle. Did you duplicate the condition? If yes, go to step  3. If no, system is OK.
  3. Is the noise reactive to vehicle load or speed? If yes, go to step  4. If no, go to step  6.
  4. Inspect the tires for the following condition:
    • Proper tire inflation and adjust as necessary.
    • Unusual tire wear. Refer to VIBRATION ANALYSIS - TIRE AND WHEEL in VIBRATION DIAGNOSIS AND CORRECTION in TIRES AND WHEELS article.
    • Inspect the wheel nuts for looseness and tighten as necessary. Refer to FASTENER TIGHTENING SPECIFICATIONS in TIRE AND WHEELS article.
    Did you find and correct the condition? If yes, go to step  13. If no, go to step  5.
  5. Inspect the front wheel bearings. Refer to WHEEL BEARINGS DIAGNOSIS . Did you find and correct the condition? If yes, go to step  13. If no, go to step  6.
  6. Bounce the front of the vehicle in order to duplicate the noise. Did you duplicate the noise? If yes, go to step  7. If no, go to step  8.
  7. Raise and support the vehicle. Inspect the front suspension components for looseness. Refer to FASTENER TIGHTENING SPECIFICATIONS in FRONT SUSPENSION article. Inspect the front suspension components for damage and repair as necessary. Did you find and correct the condition? If yes, go to step  13. If no, go to step  8.
  8. Install the J 39570 Chassis Ear or equivalent. Bounce the front of the vehicle, using the J 39570, or equivalent, in order to locate the source of the noise. If necessary, road test the vehicle. Repair or replace any damaged components as necessary. Did you find and correct the condition? If yes, go to step  13. If no, go to step  9.
  9. Inspect the ball joints and steering components for the following conditions.
    • Lack of lubrication where applicable.
    • Looseness in the ball joints. Refer to BALL JOINT INSPECTION .
    • Looseness in the steering linkage. Refer to LOOSENESS IN STEERING COLUMN in STEERING LINKAGE (NON-RACK AND PINION) article.
    • Looseness in the tie rods. Refer to RACK AND PINION OUTER TIE ROD END REPLACEMENT OR TIE ROD REPLACEMENT - INNER in POWER STEERING SYSTEM article.
    Did you find and correct the condition? If yes, go to step  13. If no, go to step  10.
  10. Inspect for damaged shock absorbers. Refer to STRUTS OR SHOCK ABSORBERS ON-VEHICLE TESTING . Did you find and correct the condition? If yes, go to step  13. If no, go to step  11.
  11. Inspect the front stabilizer shaft and stabilizer shaft links for damage and repair as necessary. Refer to STABILIZER SHAFT REPLACEMENT OR STABILIZER SHAFT LINK REPLACEMENT in FRONT SUSPENSION article. Did you find and correct the condition? If yes, go to step  13. If no, go to step  12.
  12. Inspect for control arm damage and repair as necessary. Refer to LOWER CONTROL ARM REPLACEMENT UPPER CONTROL ARM REPLACEMENT in FRONT SUSPENSION article. Did you find and correct the condition? If yes, go to step  13.
  13. Operate the system in order to verify the repair. Did you correct the condition? If yes, system is OK. If no, go to step  3.
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