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
- 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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