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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 376 (Suspension - General Diagnosis) >> Diagnostic Information >> Suspension Bottoms

Suspension Bottoms

WARNING: This page is about a different car, the 2002 Buick Regal and 2002 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.

A loud bang or thump that can usually be felt and/or heard when the vehicle is driven over bumps. This condition is commonly noticed when the vehicle trim height is too low.

  1. Road test the vehicle in order to verify the customer complaint. Ensure that the customer complaint is the suspension bottoming and not only a noise. Does the suspension bottom abnormally easy when the vehicle is driven over bumps? If yes, go to next step. If no, system is okay.
  2. Verify that the suspension bottoms. Does the vehicle operate normally? If yes, system is okay. If no, go to next step.
  3. Check for vehicle overloading. Is the vehicle overloaded? If yes, go to step  6 . If no, go to next step.
  4. Inspect the vehicle trim height. Refer to TRIM HEIGHT INSPECTION PROCEDURE  . Is the vehicle trim height incorrect? If yes, go to step  7 . If no, go to next step.
  5. Inspect the struts and shock absorbers. Refer to STRUTS OR SHOCK ABSORBERS ON-VEHICLE TESTING  . Are the components in need of replacement? If yes, go to step  8 . If no, go to step  9 .
  6. Remove the excess weight from the vehicle. Did you remove the excess weight from the vehicle? If yes, go to step  9 .
  7. Correct the vehicle trim height. Refer to TRIM HEIGHT INSPECTION PROCEDURE  . After repairs, go to step  9 .
  8. Replace the components as necessary. After repairs, go to next step.
  9. Operate the vehicle in order to verify the repair. Did you correct the condition? If yes, system is okay. If no, go to step  3 .
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