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Saturn Astra L4-1.8L (2009)10 · Steering and Suspension
10 · Steering & suspension

Alignment: Specifications (page 2 of 2)

Make
Saturn
Model
Astra
Engine
L4-1.8L
Year
2009
Section
Alignment
Steering and SuspensionSpecifications · page 2 of 2
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Alignment: Testing and Inspection

Trim Height Inspection

Measuring P and R Heights

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: Suspension/Specifications/Trim Height

Specifications).

7. If the measurement is outside of the specified range, replace the front springs. Refer to Strut, Strut Component, and Spring Replacement   (See:

Suspension/Suspension Strut / Shock Absorber/Service and Repair/Front Suspension Strut/Strut, Strut Component, and Spring Replacement).

8. Use your hands to lift the rear bumper approximately 38 mm (1.59 in).
9. Remove your hands and allow the vehicle to lower. 

10. Use your hands to jounce the rear of the vehicle downward approximately 38 mm (1.59 in).
11. The dimension R 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 rear wheel. 

12. Compare the measurement to the specification table. Refer to Trim Height Specifications   (See: Suspension/Specifications/Trim Height

Specifications).

13. If the measurement is outside of the specified range, replace the rear springs. Refer to Rear Spring Replacement   (See: Suspension/Suspension

Spring ( Coil / Leaf )/Service and Repair/Rear Suspension Coil Spring).

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Parts & tools for this job For 2009 Saturn Astra 1.8L

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