Nissan Sentra Service Manual: Front disc brake
BRAKE PAD
BRAKE PAD : Inspection
PAD WEAR
Check brake pad thickness from an inspection hole on caliper body.
Check using a scale if necessary
Wear limit thickness : Refer to BR-55, "Front Disc Brake".
DISC ROTOR
DISC ROTOR : Inspection
APPEARANCE
Check surface of disc rotor for uneven wear, cracks or damage. Replace if any abnormal conditions exist.
RUNOUT
- Check the wheel bearing axial end play before the inspection. Refer to FAX-6, "Inspection".
- Secure the disc rotor to the wheel hub and bearing assembly with wheel nuts at two wheel nut locations.
- Inspect the runout with a dial gauge, measured at 10 mm (0.39 in) inside the disc edge.
Runout : Refer to BR-55, "Front Disc Brake".
- Find the installation position with a minimum runout by shifting the disc rotor-to-wheel hub and bearing assembly installation position by one hole at a time if the runout exceeds the limit value.
- Refinish the disc rotor if the runout is outside the limit even after performing the above operation. When refinishing, use Tool.
Tool number : 38-PFM92 ( — )
THICKNESS
Check the thickness of the disc rotor using a micrometer. Replace the disc rotor if the thickness is below the wear limit.
Wear thickness : Refer to BR-55, "Front Disc Brake".
Thickness variation : Refer to BR-55, "Front Disc Brake".
Brake booster
Inspection
Operation
Depress the brake pedal several times at five second intervals with
the engine stopped. Start the engine with the brake pedal fully
depressed. Check that the clearance between ...
Rear drum brake
BRAKE LINING
BRAKE LINING : Inspection
INSPECTION
Brake Lining
Check brake lining wear thickness (A). Check using a scale if
necessary.
Lining wear thickness (A) : Refer to BR-55, "Re ...
Other materials:
Engine cooling system
The engine cooling system is filled at the factory
with a pre-diluted mixture of 50% Genuine
NISSAN Long Life Antifreeze/Coolant (blue) and
50% water to provide year-round anti-freeze and
coolant protection. The antifreeze solution contains
rust and corrosion inhibitors. Additional engine
cool ...
P0300, P0301, P0302, P0303, P0304 Misfire
DTC Logic
DTC DETECTION LOGIC
When a misfire occurs, engine speed will fluctuate. If the engine speed
fluctuates enough to cause the crankshaft
position (CKP) sensor (POS) signal to vary, ECM can determine that a misfire is
occurring.
Sensor
Input signal to ECM
ECM function
...
Rear drum brake
Brake Burnishing
CAUTION:
Burnish contact surfaces between brake drum and brake lining
according to the following procedure
after refinishing or replacing brake drum, or if a soft pedal occurs at very
low mileage.
Be careful of vehicle speed because the brake does not operate
firml ...
