I am looking for information on how to change the rear bearing on a 2001 Nissan Sentra. When I was doing the rear brakes, and once I got the calipers and rotors off, then I spun the hub and noticed there is a grinding rubbing noise and it was not smooth like the other side.
I can hear this grinding noise in the car while I drive also.
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Re: Change rear bearing on a 2001 Nissan Sentra
Most newer cars have a bearing that is pressed in to the hub. In order to do the repair you should have to replace the entire hub. This is actually easier and cleaner because the bearings are lubed, sealed and pressed in the hub. They usually cost around $30 and should be available through your local parts store. In most cases the hub is held on by a large nut so I recommend that you make sure you have a socket that is large enough.
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Raise the car , use jack stands for safety, inspect the e-brake cable assemblies along the bottom of the car for any signs of impact damage. Next, spin each wheel to see if one or both wheels are affected. Remove both rear wheels , if you have drums, try to wiggle or pry the drum off with a couple of screw drivers , inspect for fallen or broken hardware, if all looks ok, roll the adjuster so the drums can be installed freely. If this is caliper style, remove caliper , press and rotate the piston inward at least 1/4 ,if your going to install new pads, go all the way in, re-install calipers and wheels, depress brake pedal until firm and recheck wheels for binding.
Engage the emergency brake. Place the socket end of the tire wrench over the lug nuts and turn 45 degrees to break the nuts loose. Do not unseat the wheel from the wheel hub.
2Jack the Sentra into the air using the factory front jack point. This is located behind the radiator.
Finish loosening the lug nuts and remove the wheel.
4Unbolt the upper and lower caliper mounting bolts and lift the caliper off the brake rotor.
5Secure the brake caliper to the coil springs above the brake system with zip ties.
6Slide the brake rotor off the hub assembly.
7Remove the bearing cap on your Sentra. To do this, you need to use channel locks. Grab the bearing cap with the end of the channel locks. Then, twist the channel locks back and forth. You will eventually be able to loosen the bearing cap so that you can pull it off.
8Grab the end of the cotter pin on the spindle nut with pliers and pull it out of the nut. You may need to pull fairly hard, but the pin will come out.
9Turn the spindle nut counterclockwise to remove the spindle nut.
10Tap the wheel bearing out of place with a rubber mallet or a hammer.
11Tap the bearing races out of the hub with a hammer and punch tool. You need to do this for both sides of the hub.
12Clean the inside of the hub, the spindle, as well as the spindle nut brake parts cleaner and wipe them dry with a clean rag.
13Install the new wheel bearing. Tap the new bearing into the hub using a rubber mallet. Make sure you are using a rubber mallet so that you do not damage the new bearing.
14Reassemble the hub assembly, brake assembly, and put the wheel back on and tighten the lug nuts so that the wheel sits flush against the wheel hub. Installation is the reverse of removal.
15Lower the Sentra to the ground and set the dial on a torque wrench to 100 lb-ft. Tighten the lug nuts clockwise until the wrench clicks. This will indicate that the proper torque value has been reached.
Raise vehicle, remove wheel, remove brake caliper, remove brake rotor remove steering knuckle by disconnecting the tie rod, ball joint, and strut. press out hub, remove snap rings press out bearing. Reassemble in reverse order.
The hard part is pressing the caliper piston abck into the caliper so you can get the new, thicker pads over the rotor. A large C Clamp works best.
SECTION 206-03: Front Disc Brake
2001 Villager Workshop Manual
REMOVAL AND INSTALLATION
Pads —Front Disc Brake
Remove the wheel and tire assembly. For additional information, refer to Section 204-04 .
Remove the front disc brake caliper bolts. torx bit. T20?
Support the front disc brake caliper from the front strut and spring assembly using mechanics wire.
Remove the front disc brake pads.
Remove the outboard front disc brake pad.
Remove the inboard front disc brake pad.
CAUTION: Make sure the master cylinder reservoir does not overfill and spill brake fluid while retracting the front disc brake caliper piston. NOTE: It is necessary to fully retract the front disc brake caliper piston in the bore before installing the front disc brake pads. Install the front disc brake pads.
Install the inboard front disc brake pad.
Install the outboard front disc brake pad.
Caution. The outer pads are left and right. put left on driver side.
Position the front disc brake caliper on the front-wheel knuckle and install the brake caliper pin bolts.
WARNING: It is necessary to depress the brake pedal several times to position the front disc brake caliper piston before driving the vehicle.
You will need a jack and 2 jack stands to get the front wheels off the ground (break the lug nuts loose before lifting) and support the vehicle.
You will need the lug nut wrench (or a 1/2 inch breaker bar and 21 MM socket) to remove the wheel.
You will need a 14 MM wrench to remove the caliper bolts and possibly a flat head screwdriver to pry the caliper off of the pads if it is difficult.
You will need a big pair of channel lock pliers to compress the piston back into the caliper bore to allow room for the new pads.
You may need a hammer to hit the rotors to break them loose if they are rusted into place on the hub- a couple good shots should break them free if needed.
You will also need a wire brush and some good brake grease (available at any parts store). You will want to see any place that the pads contact a stationary surface and clean this area and apply a film of the grease to these points to prevent binding and uneven pad wear.
Hope this is helpful!!
Nissan Scope Technician- 10+ years experience in Nissan dealership.