GM Cadillac Deville_Fleetwood_ELD_Seville 1990-1998

Coil Springs

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REMOVAL & INSTALLATION



Catera
  1. Raise and safely support the vehicle so that the control arm hangs free.
  2.  
  3. Remove the retainers from the lower control arms.
  4.  
  5. Dislodge the brake pipes (lines) from the lower control arms. The brake system will remain closed.
  6.  
  7. Unbolt the stabilizer shaft link from the lower control arms.
  8.  


NOTE
Support the exhaust system. DO NOT allow the exhaust system to hang freely or pipe and/or gasket damage may occur.

  1. Remove the exhaust system rubber insulators from the hangers. This will allow the exhaust to drop out of the way.
  2.  
  3. Detach the rear wheel speed sensor electrical connections.
  4.  


NOTE
Support each lower control arm when removing the shock absorber lower mount bolt to compensate for the pressure on the shock absorber mount from the spring.

  1. Unbolt the shock absorber lower mount bolts.
  2.  
  3. Lower the support from the lower control arms and support the rear differential.
  4.  
  5. Remove the rear axle cradle mounts to the vehicle body bolts.
  6.  
  7. Lower the rear differential until the springs can be removed.
  8.  
  9. Remove the rear springs with the spring seats attached.
  10.  
  11. Remove the spring seats from the springs.
  12.  

To install:

  1. Install the spring seats to the spring.
  2.  


NOTE
Be sure that the spring leg is properly installed within the spring seats or noises may occur.

  1. Install the rear springs to the lower control arm and body.
  2.  
  3. Raise the rear differential into place.
  4.  
  5. Align and place the protective shields.
  6.  
  7. Secure the rear differential with the cradle mount bolts. Tighten the bolts to 48 ft. lbs. (65 Nm).
  8.  
  9. Lower the support from the cradle and place the support under the left side lower control arm.
  10.  
  11. Raise the support to allow for alignment of the lower shock absorber mount bolt.
    1. Install the bolt and tighten to 81 ft. lbs. (110 Nm).
    2.  

  12.  
  13. Plug in the rear wheel speed sensor electrical connections.
  14.  
  15. Support the exhaust system by replacing the rubber insulators to the hangers.
  16.  
  17. Install the stabilizer shaft link to the lower control arms and tighten the link bolts to 15 ft. lbs. (20 Nm).
  18.  
  19. Secure the brake pipes to the lower control arms.
  20.  
  21. Lower the vehicle and adjust the rear toe specifications.
  22.  

Deville and Fleetwood
  1. Raise and safely support the vehicle so that the control arm hangs free.
  2.  
  3. Remove the wheel and tire assembly.
  4.  
  5. Remove the height sensor link from the right control arm and/or the parking brake cable-retaining clip from the left control arm.
  6.  
  7. Remove the rear stabilizer bar from the bracket on the knuckle.
  8.  
  9. Position tool J-23028-01 or equivalent, to cradle the control arm bushings. Secure the tool to a suitable jack.
  10.  


CAUTION
Tool J-23028-01 must be secured to a jack or personal injury may result.

  1. Raise the jack to remove the tension from the control arm bolts.
  2.  



Click image to see an enlarged view

Fig. Coil spring-Deville and Fleetwood



Click image to see an enlarged view

Fig. Coil spring removal/installation-Deville and Fleetwood

  1. As a safety measure, place a chain around the spring and through the control arm.
  2.  
  3. Remove the pivot bolt, nut and washer, if equipped, from the rear of the control arm.
  4.  
  5. Slowly maneuver the jack to relieve tension in the front control arm pivot bolt. Remove the pivot bolt, nut and washer, if equipped, from the front of the control arm.
  6.  
  7. Lower the jack, allowing the control arm to pivot downward. When all compression is removed from the spring, remove the safety chain, spring, and insulators.
  8.  


NOTE
Do not apply force to the control arm and/or ball joint to remove the spring. The spring can be removed easily with proper maneuvering.

To install:



Click image to see an enlarged view

Fig. Coil spring positioning-1990 Deville and Fleetwood



Click image to see an enlarged view

Fig. Coil spring positioning-1991-93 Deville and Fleetwood

  1. Inspect the spring insulators and replace them if they are cut or torn. If the vehicle has been driven more than 50,000 miles, replace the insulators regardless of condition.
  2.  
  3. Snap the upper insulator onto the spring. Install the lower insulator and spring in the vehicle.
  4.  
  5. Using tool J-23028-01 or equivalent, mounted on a suitable jack, raise the control arm into position.
  6.  
  7. Slowly maneuver the jack until the front and rear control arm pivot bolts and nuts can be installed.
  8.  
  9. Connect the rear stabilizer bar to the knuckle bracket with the link.
  10.  
  11. Install the height sensor link to the right control arm and/or the parking brake cable retaining clip to the left control arm.
  12.  
  13. Install the wheel and tire assembly and lower the vehicle.
  14.  
  15. When the vehicle is resting on its wheels, tighten the control arm nuts to 85 ft. lbs. (115 Nm) and the stabilizer bar link bolt to 13 ft. lbs. (17 Nm).
  16.  


WARNING
The control arm nuts must be tightened with the vehicle unsupported and resting on its wheels at normal trim height. If not, ride and handling may be adversely affected.

Eldorado and Seville
  1. Raise and safely support the vehicle so that the control arm hangs free.
  2.  
  3. Remove the wheel and tire assembly.
  4.  
  5. Support the inner end of the lower control arm with a suitable jack. Position the jack to securely hold the control arm.
  6.  
  7. Disconnect the stabilizer bar and shock absorber from the lower control arm.
  8.  
  9. Remove the inner lower control arm nuts and bolts, then slowly lower the control arm to relieve the spring pressure.
  10.  
  11. Pull the lower control arm down and remove the coil spring.
  12.  

To install:

  1. Install the coil spring and insulators.
  2.  


NOTE
To ensure the spring is installed in the proper position, rest the spring (without insulators) on a flat surface prior to installation. The spring will stand up straight when resting on its lower end, but will lean or tip over when resting on its top end.

  1. Raise the inner end of the lower control arm with the jack to slightly compress the coil spring. Install the inner lower control arm nuts and bolts.
  2.  
  3. Connect the shock absorber and stabilizer link to the lower control arm.
  4.  
  5. Position the jack under the outer end of the lower control arm. Raise the jack until the suspension is in the normal ride height position.
  6.  
  7. With the suspension in the normal ride height position, tighten the stabilizer link lower nut to 44 ft. lbs. (60 Nm), the shock absorber lower nut to 75 ft. lbs. (102 Nm) and the lower control arm inner nuts to 75 ft. lbs. (102 Nm).
  8.  


NOTE
The inner control arm nuts must be tightened with the suspension in the normal ride height position to reduce wind up in the bushings.

  1. Install the wheel and tire assembly and lower the vehicle. Check the rear wheel alignment.
  2.  

 
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