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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1367 (Suspension System General Diagnosis) >> Diagnostic Information and Procedures >> Trim Height Inspection Procedure >> Z Height Dimension Measurement Procedure

Z Height Dimension Measurement Procedure

WARNING: This page is about a different car, the 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.

The Z height dimension measurement determines the proper ride height for the front of the vehicle.

  1. Use your hands in order to lift the front bumper of the vehicle up approximately 38 mm (1.5 in). Gently remove your hands in order to allow the vehicle to settle.
  2. Use your hands in order to push the front bumper of the vehicle down approximately 38 mm (1.5 in). Gently remove your hands in order to allow the vehicle to settle.
    3. IMPORTANT: Measure all dimensions vertically.
  3. Measure the Z height dimension on the front lower control arms for the left and the right side of the vehicle.

    Measure from the center line of the control arm pivot bolt to the lower edge of the steering knuckle ball joint.

  4. Compare the measurement to the specification. Refer to Trim Height Specifications  .
  5. If the measurement is not within 10 mm (0.4 in) of the specification, replace the front springs. Refer to Strut, Strut Component and/or Spring Replacement in Front Suspension.
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