Check for excessive friction
Check for excessive friction in the rear suspension, proceeding as follows:
1. With the help of another mechanic, raise the vehicle by the rear bumper as high as possible. Slowly lower the bumper until the vehicle body returns to its normal position.
2. Measure the distance from the ground to the middle of the bumper.
3. Push down on the bumper and then slowly release to bring the car body back into its normal position relative to the wheels.
4. Measure the distance from the ground to the middle of the bumper.
The difference between the results of the two specified measurements must be less than 12.7 mm (0.50 inch). If the difference is greater than this limit, check the levers for damage or wear.
Shock absorber
The shock absorber has a self-leveling function. This function is designed to adjust the vehicle's constant height under a variety of load conditions. The shock absorber is not serviceable.
Insufficient shock absorber resistance
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Checks
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operation, action
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Check tire pressure.
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Adjust the air pressure in the tires to the value indicated on the tire data plate.
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Check the loading conditions of the vehicle during normal operation.
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Check with the owner of the vehicle if they are familiar with normal loading conditions.
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Check the effectiveness of the shock absorber in compression and rebound.
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Apply firm pressure to the corner of the bumper closest to the shock absorber being tested, then release.
Compare compression and rebound to those found on another similar vehicle with no problems.
Replace shock absorber if required.
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Shock absorbers are noisy
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Checks
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operation, action
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Check that the attachment points are well fixed and that they are not damaged.
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Tighten the shock absorber. Replace shock absorber if required.
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Check the effectiveness of the shock absorber in compression and rebound.
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Apply firm pressure to the corner of the bumper closest to the shock absorber being tested, then release.
Compare compression and rebound to those found on another similar vehicle with no problems.
Replace shock absorber if required.
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Leaks
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Checks
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operation, action
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Check for any signs of fluid leakage.
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The shock absorber is correct.
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Check the seal cover on a fully extended shock.
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Replace shock absorber.
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Check if there is too much fluid in the shock absorber.
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Replace shock absorber.
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