Toyota Corolla Cross: Differential System
Precaution
PRECAUTION
- Before disassembling the differential assembly, thoroughly clean it by removing
any sand, mud or foreign matter. This will help prevent contamination during
disassembly and reassembly.
- When removing the differential side bearing retainer or any other light
alloy parts, do not pry them off with a screwdriver or other tool that may cause
damage. Instead, tap the parts with a plastic-faced hammer.
- Always arrange removed parts in the order they were removed and protect
them from foreign matter.
- Before installation of each part, thoroughly clean and dry it. Then apply
gear oil to it. Do not use alkaline chemicals to clean aluminum parts, rubber
parts or ring gear set bolts. Also, do not use non-residue solvent or other
cleaning oils to clean O-rings, oil seals or rubber parts.
- New ring gear set bolts are applied with an oil coating. Do not clean off
this coating.
- Coat sliding surfaces and rotating parts with Toyota genuine differential
gear oil LT 75W-85 GL-5 or equivalent if necessary.
- Do not directly fix a part in a vise. Place aluminum plates between the
part and vise.
- Replace any snap rings with new ones.
- Do not allow the case mating surfaces to be scratched. Scratches may lead
to oil leakage.
- Before applying sealant, remove deposited oil sealant and clean the part
to be sealed using non-residue solvent.
- After assembling parts which have been applied with sealant, leave the parts
for at least 1 hour without adding oil. Also, avoid any sudden acceleration
or deceleration for the next 12 hours.
- Do not allow scratches on surfaces which contact oil seals, O-rings or gaskets.
Scratches may lead to oil leakage.
- When press-fitting an oil seal, be careful not to damage the lip of the
oil seal and its periphery and be sure not to press it in at an angle.
- When replacing a bearing, replace the inner and outer races as a set.
- When replacing a bearing, do not put stress on the roller, retainer or rolling
contact surface.
- When replacing a hypoid gear, replace the ring gear and drive pinion gear
as a set.
- New bearings are coated with anti-rust oil. If using new bearings, do not
clean off this coating.
- Replace bolts if the bearing surface or threads are significantly rusty.
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
Use the table below to help determine the cause of the problem symptoms. If multiple
suspected areas are listed, the potential causes of the symptoms are listed in order
of probability in the "Suspected Area" column of the table. Check each symptom by
checking the suspected areas in the order they are listed. Replace parts as necessary.
Differential System
Symptom
|
Suspected Area
|
See page
|
Noise in rear differential
|
Oil level (Low or wrong grade)
|
|
Ring gear or driver pinion (Worn or chipped)
|
|
Backlash adjustment (Defective)
|
|
Preload adjustment (Defective)
|
|
Tooth contact between ring gear and drive pinion (Defective)
|
|
Bearing (Worn)
|
|
Oil leak from rear differential
|
Oil level (Too high or wrong grade)
|
|
Diaphragm oil seal (Worn or damaged)
|
|
Rear drive shaft oil seal (Worn or damaged)
|
|
Seal packing (Damaged)
|
|
READ NEXT:
ON-VEHICLE INSPECTION
CAUTION / NOTICE / HINT
HINT:
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
PROCEDURE
1. REMOVE FRONT WHEEL
Click
REMOVAL
CAUTION / NOTICE / HINT
COMPONENTS (REMOVAL)
Procedure
Part Name Code
1
FRONT WHEEL
-
-
SEE MORE:
The PKSB (Parking Support
Brake) consists of the following
functions that operate
when driving at a low
speed or backing up, such
as when parking. When the
system determines that the
possibility of a collision
with a detected object is
high, a warning operates to
urge the driver to take evasive
acti
END POSITION INITIAL SETTING
CAUTION / NOTICE / HINT
Perform end position initial setting after replacing or servicing parts related
to steering operation.
NOTICE:
If matchmarks were not placed when removing parts related to steering operation,
perform end position initial setting.