ION L4-2.4L (2007)
Use the following procedure to check the D dimension:
1. With the vehicle on a flat level surface, lift upward on the rear bumper 38 mm (1.59 in).
2. Gently remove your hands and allow the vehicle to settle.
3. Repeat the jouncing operation 2 more times.
4. Measure the D height for the left and right side of the vehicle. Measure the vertical distance between the bottom edge of the upper spring seat to
the bottom of the notch in the lower spring seat.
5. Using your hands, jounce the front of the vehicle downward approximately 38 mm (1.59 in).
6. Gently remove your hands and allow the vehicle to settle.
7. Repeat the jouncing operation 2 more times.
8. Measure the D height dimension.
9. The true D height dimension number is the average of the high and the low measurements. Refer to Trim Height Specifications.
10. If these measurements are out of specifications, inspect for the following conditions:
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Worn or damaged suspension components
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Collision damage