How to Replace a Caliper in a Nissan Sentra

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Replacing a brake caliper in a Nissan Sentra, or any other vehicle, is a task not to be taken lightly. Such maintenance is best recommended for a trained mechanic. Should you look to replace a caliper yourself, consult such an expert before taking on such a job.

Things You'll Need

  • Allen/socket wrench
  • Tire iron
  • Jack
  • Caliper for Sentra
  • Replacement washers
  • Small rubber piece
  • Transparent vinyl tube
  • Brake pads
  • Brake shims
  • Take the wheel off of the vehicle once it is securely raised on the jack stand. Use the "five-star" pattern to remove the lug nuts, removing the nut across from the one previously removed.

  • Disconnect and plug the brake hose from the caliper, discarding the washers on the bolt. Remove the parking brake cable and the lock spring if it's a rear caliper. Remove the caliper pin bolts.

  • Remove the caliper, pivoting it upward away from the rotor and sliding it off the pin sleeve. Remove the pads, shims and pad springs.

  • Install the replacement caliper with new pads, new shims and the pad retainers. Torque the pin bolts to 16 foot pounds to 23 foot pounds.

  • Connect the hose with new washers, tightening the flare nut to 12 foot pounds to 14 foot pounds. Connect the lock spring and the parking brake cable back onto a rear caliper.

  • Bleed the brake system by opening the bleeder valve and having another person depress the pedal to remove air. (Use a clear vinyl tube on the valve.) Top off the master cylinder afterward if needed.

  • Reattach the wheel and lower the vehicle. Test the brakes for firmness. Don't do so on the road until after they feel firm while stopped.

Tips & Warnings

  • It's a good idea to remove as much as two-thirds of the brake fluid before installation to prevent overflow.
  • Removing the battery cable from the negative terminal is also a precaution. It's a necessary one before bleeding the brake system if your Sentra has anti-lock brakes.
  • Don't clean any brake parts with dry brushing or compressed air, as they may contain asbestos fibers. Run a mist of water over any brake parts, wipe them with a damp cloth and dispose of the cloth in an airtight container.

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