Lucerne V6-3.9L (2009)
4. Measure from the front outboard control arm bolt center line to the bottom of the control arm wheel bearing and hub face in order to obtain the D
height measurement.
5. Push the rear bumper downward to 38 mm (1.5 in).
6. Gently remove your hands.
Allow the vehicle to settle into position.
7. Repeat the jouncing operation 2 more times for a total of 3 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 (See:
Specifications/Mechanical Specifications/Suspension/System Specifications/Trim Height Specifications).
10. If these measurements are out of specifications, inspect for the following conditions:
*
Improper weight distribution
*
Collision damage
*
Worn or damaged suspension components
Measuring the P and R Dimension
Use the following procedure to check the P and R dimensions.
1. Use your hands to lift the front bumper approximately 38 mm (1.59 in).
2. Remove your hands and allow the vehicle to lower.
3. Use your hands to jounce the front of the vehicle downward approximately 38 mm (1.59 in).
4. Remove your hands and allow the vehicle to rise.
5. The dimension (P) for the left and right side of the vehicle is measured from the bottom lip of the wheel opening to the ground measured at the
center line of the front wheel.
6. Compare the measurement to the specification table. Refer to Trim Height Specifications (See: Specifications/Mechanical
Specifications/Suspension/System Specifications/Trim Height Specifications).
7. If the measurement is outside of the specified range, replace the front springs. Refer to Strut, Strut Component, or Spring Replacement (See: