Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCADILLAC1999SEVILLE SLS V8-4.6L VIN YREPAIR AND DIAGNOSISMAINTENANCEALIGNMENTSPECIFICATIONSRIDE/TRIM HEIGHT SPECIFICATIONS
1999 Cadillac Seville SLS V8-4.6L VIN Y
Ride/Trim Height Specifications
1999 Cadillac Seville SLS V8-4.6L VIN YSECTION Ride/Trim Height Specifications
Trim Height
1. Park the vehicle on level ground.
2. Inspect the tire pressure. Ensure that all tires are inflated to the proper pressure.
3. Inspect the fuel level. Verify that the fuel tank is full.
4. Ensure that there is no extra weight in the passenger compartment or the trunk. The trunk must be empty except for the spare tire and the jack.
5. Ensure that the electronic level control is operating properly.
6. Place the front seat in the rear most position.
7. Bounce the vehicle three times at the front and at the rear in order to normalize the suspension.
8. Measure the distance between the lowest point on the ball joint housing and the centerline of the control arm bolt. This distance (3) should be 40 mm (1.57 in) (Seville) and 30 mm (1.18 in) (Touring).
9. Measure the distance from the bottom of the control arm wheel bearing face to the centerline of the outboard control arm bolt. This distance (2) should be 86 mm (3.39 inch) (Seville) and 76 mm (2.99 in) Touring).
10. Measure the distance from the ground to the lower most portion of the front Unibody frame. This distance should be 179 mm (7.05 in) (Seville) and 169 mm (6.65 in) (Touring).
11. Measure the distance from the ground to the lower most portion of the rear Unibody frame. This distance should be 229 mm (9.02 in) (Seville) and 218 mm (8.58 in) (Touring).
12. If vehicle trim height is out of specifications, locate damaged or worn component and repair.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.