GM Buick/Oldsmobile/Pontiac/Full-Size 1975-1990 Repair Guide

Cables

Print

REMOVAL & INSTALLATION



See Figures 1, 2, 3 and 4

Front cable
  1. Raise the vehicle and support it securely by the frame. Loosen the adjusting nut and disconnect the front cable at the connector. Compress the fingers of the cable retainer and disconnect it at the frame.
  2.  
  3. Lower the vehicle to the ground. Then, remove the lower rear bolt from the wheelhouse panel and then pull the panel outward to gain access to the front cable. Disconnect the cable at the parking brake pedal assembly by compressing the fingers of the retainer and pulling it out.
  4.  
  5. Install a new cable in reverse order, checking carefully that it is properly routed and securely retained. Adjust the parking brake.
  6.  

Left Rear Cable
DRUM BRAKES
  1. Raise the vehicle and support it securely by the frame. Loosen the adjusting nut and compress the retainer fingers at the equalizer lever to loosen the cable.
  2.  
  3. Disconnect the cable at the connector and then remove it from the equalizer.
  4.  
  5. Mark the relationship between the wheel and axle flange and remove the wheel. Remove the brake drum as described above.
  6.  
  7. Using an appropriate tool, disconnect and remove the primary shoe return spring and parking brake strut.
  8.  
  9. Compress the retainer fingers and loosen the cable housing at the backing plate. Then, disconnect the cable from the parking brake lever and remove it.
  10.  
  11. Install a new cable in reverse order, checking carefully that it is properly routed and securely retained. Adjust the parking brake.
  12.  

Right Rear Cable
DRUM BRAKES
  1. Raise the vehicle and support it securely by the frame. Remove the adjusting nut at the equalizer lever. Compress the fingers of the retainers and then loosen the cable housing from the retainers at the frame and at the axle housing retaining clip.
  2.  
  3. Mark the relationship between the wheel and axle flange and then remove the wheel. Remove the brake drum as described above.
  4.  
  5. Using an appropriate tool, disconnect and remove the primary shoe return spring and parking brake strut. Remove the secondary brake shoe holddown spring.
  6.  
  7. Compress the retainer fingers and loosen the cable housing at the backing plate. Then, disconnect the cable from the parking brake lever and remove it.
  8.  
  9. Install a new cable in reverse order, checking carefully that it is properly routed and securely retained. Adjust the parking brake.
  10.  

Rear Cables
DISC BRAKES
  1. Raise the vehicle and support it on safety stands.
  2.  
  3. Loosen the cable at the adjuster.
  4.  
  5. Disconnect all cables at the equalizer.
  6.  
  7. Disengage the cable housing retainer from the rear suspension crossmember assembly.
  8.  
  9. Remove the cable from the caliper assembly as detailed earlier in this section and then remove the cable.
  10.  
  11. To install, position the cables in the retainers.
  12.  
  13. Install the cable in the caliper assembly as described previously.
  14.  
  15. Reconnect all cables at the equalizer.
  16.  
  17. Adjust the parking brake.
  18.  



Click image to see an enlarged view

Fig. Fig. 1: Parking brake cables; all models similar



Click image to see an enlarged view

Fig. Fig. 2: Removing the rear cable from the parking brake lever



Click image to see an enlarged view

Fig. Fig. 3: A wrench can be used to compress the retaining fingers on the rear cable



Click image to see an enlarged view

Fig. Fig. 4: Removing the rear cable from the backing plate

ADJUSTMENT



See Figures 5, 6, 7 and 8

Rear Drum Brakes

The need for parking brake adjustment is indicated if parking brake pedal travel is more than 15 clicks under heavy foot pressure.

  1. Depress the parking brake pedal exactly two ratchet clicks.
  2.  
  3. Raise the vehicle and safely support it with jackstands.
  4.  
  5. Tighten the adjusting nut until the left rear wheel can just be turned rearward using two hands, but is locked when forward rotation is attempted.
  6.  
  7. With the mechanism totally disengaged, the rear wheels should turn freely in either direction with no brake drag.
  8.  

It is very important that the parking brake cables are not adjusted too tightly causing brake drag.

  1. Remove the jackstands and lower the vehicle.
  2.  



Click image to see an enlarged view

Fig. Fig. 5: Parking brake adjuster components



Click image to see an enlarged view

Fig. Fig. 6: Location for parking brake adjustment



Click image to see an enlarged view

Fig. Fig. 7: It may be helpul to soak the adjuster with a penetrating fluid first



Click image to see an enlarged view

Fig. Fig. 8: Adjusting the parking brake cable

Rear Disc Brakes
  1. Lubricate the parking brake cables at the underbody rub points and at the equalizer hooks. Make sure there is free movement at all cables, and that the parking brake pedal is in the fully released position.
  2.  
  3. Raise the rear of the vehicle and support it with jackstands.
  4.  
  5. Hold the brake cable stud from turning and tighten the equalizer nut until all cable slack is removed.
  6.  
  7. Make sure the caliper levers are against the stops on the caliper housings after tightening the equalizer nut.
  8.  
  9. If the levers are off the stops, loosen the cable until the levers return to the stops.
  10.  
  11. Operate the parking brake pedal several times to check the adjustment. When the cable is properly adjusted, the parking brake pedal should travel 4-5 1 / 2 in. (102-140mm) with approximately 125 pounds of force on the pedal.
  12.  
  13. After the adjustment, the levers must be on the caliper stops. Back off the brake adjustment if necessary to keep the levers on the stops. Remove the jackstands and lower the vehicle.
  14.  

 
label.common.footer.alt.autozoneLogo