Hyundai Sonata LF: Rear Suspension System / Rear Assist Arm Repair procedures
| 1. |
Raise the vehicle, and make sure it is securely supported. |
| 2. |
Remove the wheel cap (A). 
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Be careful not to damage to the wheel cap (A) when removing the it. |
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| 3. |
Remove the front wheel and tire (A) from front hub.
Tightening torque :
88.3 ~ 107.9 N.m (9.0 ~ 11.0 kgf.m, 65.1 ~ 79.6 lb-ft)
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Be careful not to damage to the hub bolts when removing the front wheel and tire (A). |
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| 4. |
Remove the assist arm protector. 
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| 5. |
Loosen the bolt & nut and then remove the rear assist arm (A) with the sub frame.
Tightening torque :
107.9 ~ 117.7 N.m (11.0 ~ 12.0 Kgf.m, 79.6 ~ 86.8 lb-ft)
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| • |
Set up the transmission jack under the lower arm in order to remove the shock absorber in no-load condition . |
| • |
Record the position of the alignment marks before removing
the rear lower arm to keep from tightening the bolt and washer to the
wrong position or the wrong direction. |
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| 6. |
Loosen the bolt and then remove the assist arm.
Tightening torque :
137.3 ~ 156.9 N.m (14.0 ~ 16.0 kgf.m, 101.3 ~ 115.7 lb-ft)
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|
Set up the transmission jack under the lower arm in order to remove the shock absorber in no-load condition .
Record the position of the alignment marks before removing
the rear lower arm to keep from tightening the bolt and washer to the
wrong position or the wrong direction. |
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| 1. |
Installation is the reverse of removal.
| • |
Install the component with the specified torques. |
| • |
When installing the bolt, install the lower arm in no-load condition by using the transmission jack. |
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| 2. |
Check the alignment.
(Refer to Tires/Wheels - "Alignment")
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| 1. |
Check the bushing for wear and deterioration. |
| 2. |
Check the rear lower arm for deformation.. |
| 3. |
Check the coil spring and spring pad for deterioration and deformation. |
| 4. |
Check for all bolts and nut. |
Removal
1.
Raise the vehicle, and make sure it is securely supported.
2.
Remove the wheel cap (A).
Be careful not to damage to the wheel cap (A) when removing the it...
Replacement
1.
Raise the vehicle, and make sure it is securely supported.
2.
Remove the wheel cap (A).
Be careful not to damage to the wheel cap (A) when removing the it...
Other information:
Operation and Leakage Check
Check all of the following items:
ComponentProcedureBrake Booster (A)Check brake operation by applying the brakes during a test
drive. If the brakes do not work properly, check the brake booster.
Replace the brake booster as an assembly if it does not work properly or
if there are signs of leakage...
Inspection
[Motor]
1.
Turn ignition switch OFF.
2.
Disconnect the EWGA connector.
3.
Check that the EWGA is stuck by foreign material.
4.
Measure resistance between motor (+) and (-) control terminals of the motor.
5.
Check that the resistance is within the specification...
Rear Lower Arm Repair procedures
Trailing Arm Repair procedures