GM Cadillac Deville_Fleetwood_ELD_Seville 1990-1998

Brake Pads

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REMOVAL & INSTALLATION



1990-91 Eldorado and Seville
  1. Use a syringe or similar tool to remove 1 / 3 of the brake fluid from the master cylinder reservoir.
  2.  
  3. Raise and safely support the vehicle.
  4.  
  5. Remove the wheel and tire assembly, then reinstall 2 lug nuts to retain the disc brake rotor.
  6.  
  7. Remove the disc brake caliper from the rotor and mounting bracket, but do not disconnect the brake hose from the caliper. Suspend the caliper with wire from the strut.
  8.  


WARNING
Do not let the caliper hang from the brake hose. The hose may become damaged, causing possible brake failure.

  1. Remove the outboard disc brake pad by unsnapping the springs from the caliper holes.
  2.  
  3. Press in on the edge of the inboard disc brake pad from the open side of the caliper, and tilt outward to release the pad from the retainer.
  4.  
  5. Remove the bushings from the mounting bolt holes in the caliper mounting bracket.
  6.  
  7. Remove the 2-way check valve from the end of the caliper piston using a small prybar.
  8.  


NOTE
If evidence of leakage can be seen at the piston hole after the check valve is removed, replace the actuator and overhaul the caliper.

To install:

  1. Position suitable adjustable pliers over the caliper housing and piston surface, and bottom the caliper piston in the caliper bore. After the piston is bottomed, lift the inner edge of the boot next to the piston and press out any trapped air. The boot must lay flat.
  2.  


WARNING
Do not let the pliers contact the actuator screw. Protect the piston so the surface will not be damaged.

  1. Lubricate new bushings with silicone grease and install them in the mounting bolt holes in the caliper mounting bracket.
  2.  
  3. Lubricate a new 2-way check valve and install it into the end of the caliper piston.
  4.  
  5. Install the inboard disc brake pad as follows:
    1. Engage the inboard pad edge in the straight tabs on the retainer, press down and snap the pad under the S-shaped tabs. The back of the pad must lay flat against the caliper piston.
    2.  
    3. Make sure the pad retainer and piston are properly positioned. The tabs on the pad retainer are different; rotate the retainer if necessary.
    4.  
    5. The buttons on the back of the pad must engage the D-shaped notches in the piston. The piston will be properly aligned when the D-shaped notches are aligned with the caliper mounting bolt holes. Turn the piston with spanner wrench J-7624 or equivalent, if necessary.
    6.  

  6.  
  7. Install the outboard disc brake pad with the wear sensor at the trailing edge of the pad during forward wheel rotation. Snap the pad springs fully into the caliper holes. The back of the pad must lay flat against the caliper.
  8.  
  9. Install the disc brake caliper.
  10.  
  11. Install the wheel and tire assembly and lower the vehicle.
  12.  
  13. Apply the brake pedal several times to seat the brake pads in the caliper.
  14.  
  15. Check the brake fluid level in the master cylinder and add fluid as necessary.
  16.  



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Fig. Suspend the caliper with wire from the strut; do not let the caliper hang from the brake hose



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Fig. Rear disc brake pad assembly-1990-91 Eldorado and Seville



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Fig. Removing the inboard disc brake pad-1990-91 Eldorado and Seville



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Fig. Compressing the caliper piston-1990-91 Eldorado and Seville



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Fig. Positioning of the caliper piston and disc brake pad retainer-1990-91 Eldorado and Seville



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Fig. Installing the inboard disc brake pad-1990-91 Eldorado and Seville

1992-98 Eldorado and Seville; 1994-98 Deville
  1. Use a syringe or similar tool to remove 2 / 3 of the brake fluid from the master cylinder reservoir.
  2.  
  3. Raise and safely support the vehicle.
  4.  
  5. Remove the wheel and tire assembly, then reinstall 2 lug nuts to retain the disc brake rotor.
  6.  
  7. Remove the bolt and washer attaching the cable support bracket to the caliper.
  8.  


NOTE
It is not necessary to disconnect the parking brake cable from the caliper parking brake lever or disconnect the brake hose unless the caliper is to be completely removed from the vehicle. Freeing the cable support bracket provides enough flexibility in the cable to pivot the caliper up and remove the disc brake pads.

  1. Remove the sleeve bolt.
  2.  
  3. Pivot the caliper upward; do not completely remove the caliper.
  4.  
  5. Remove the disc brake pads and clips from the caliper mounting bracket.
  6.  

To install:

  1. Use a suitable tool in the caliper piston slots to turn the piston and thread it into the caliper. After bottoming the piston, lift the inner edge of the boot next to the piston and press out any trapped air. The boot must lay flat.
  2.  


NOTE
Make sure the slots in the end of the caliper piston are positioned as shown in the figure before pivoting the caliper down over the brake pads in the caliper support. Use a suitable tool in the piston slots to turn the piston as necessary.

  1. Install 2 new pad clips in the caliper mounting bracket. New clips should always be used when replacing the disc brake pads.
  2.  
  3. Install the disc brake pads in the caliper mounting bracket with the wear sensor on the outboard pad positioned downward at the leading edge of the rotor during forward wheel rotation. Hold the metal pad edge against the spring end of the clips in the caliper mounting bracket, then push the pad in toward the hub, bending the spring ends slightly, and engage the pad notches with the bracket abutments.
  4.  
  5. Pivot the caliper down over the disc brake pads, being careful not to damage the piston boot on the inboard pad. Compress the sleeve boot by hand as the caliper moves into position, to prevent boot damage.
  6.  


NOTE
After the caliper is in position, recheck the installation of the pad clips. If necessary, use a suitable tool to reseat or center the pad clips on the bracket abutments.

  1. Install the sleeve bolt and tighten to 20 ft. lbs. (27 Nm).
  2.  
  3. Install the cable support bracket (with the cable attached) with the bolt and washer. Tighten the bolt to 32 ft. lbs. (43 Nm).
  4.  
  5. Install the wheel and tire assembly and lower the vehicle.
  6.  
  7. Apply the brake pedal several times to seat the brake pads against the rotor.
  8.  
  9. Check the brake fluid level in the master cylinder and add fluid as necessary.
  10.  



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Fig. Remove the locating pins



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Fig. The caliper may need a little gentle prying to help release it from the retaining bracket



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Fig. Once the caliper is free, remove it from the bracket and support it



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Fig. The caliper piston on the rear calipers requires a special tool to retract the piston



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Fig. A special adapter is needed with small prongs that insert into the indents on the caliper piston



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Fig. Place the adapter on the caliper tool and . . .



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Fig. . . . install the tool in the caliper



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Fig. While holding the nut, turn the forcing screw to rotate the caliper piston into the caliper until it bottoms out



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Fig. A coating of Disc Brake Quiet or equivalent silencer should be applied to the back of the new pads

Catera
  1. Raise and safely support the vehicle.
  2.  
  3. Remove the wheels.
  4.  
  5. Using a screwdriver, gently pry between the rotor and each brake pad to bottom each piston into its bore.
  6.  
  7. Drive the brake pad retaining pins from the caliper using a small punch. Remove the retaining spring.
  8.  
  9. Remove the brake pads.
  10.  

To install:

  1. Install the brake pads into the caliper.
  2.  
  3. Install the brake pad retaining spring and pins. Be sure the retaining spring is correctly positioned.
  4.  
  5. Install the wheels.
  6.  
  7. Lower the vehicle.
  8.  
  9. Pump the brake pedal several times to position the brake pads.
  10.  
  11. Road test the vehicle and check for proper brake system operation.
  12.  

INSPECTION



Refer to brake pad inspection under Front Disc Brakes.

 
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