1999 SUZUKI GRAND VITARA o2 sensor

YH4
GRAND
VITARA
1. Axle shaft
2. Wheel bearing
3. Press
1. Stud bolt
2. Hydraulic press
1. Rear wheel bearing
retainer ring
2. Grind with a grinder
3. Rear axle
3E-12 REAR SUSPENSION
9) Break with a chisel the thin ground sensor rotor, and it can be
removed (if equipped with ABS).
10) In order to remove the retainer ring from the shaft, grind with
a grinder two parts of the bearing retainer ring as illustrated till
it becomes thin.
CAUTION:
Be careful not to grind too far not to damage the shaft.
11) Break with a chisel the thin ground retainer ring, and it can be
removed.
12) Remove bearing from shaft by using hydraulic press.
13) Remove bearing retainer.
14) Remove stud bolt(s) by using hydraulic press.

YH4
GRAND
VITARA
1. Sensor rotor
1. Axle housing
1. Bearing retainer
(b)
3E-14 REAR SUSPENSION
5) For vehicle with ABS, press-fit new sensor rotor as shown.
NOTE:
Use care not to cause any damage to outside of retainer
ring.
6) Apply grease to axle shaft inner oil seal lip as shown.
ªAº: Grease 99000-25010
7) Apply sealant to mating surface of bearing retainer with brake
back plate.
NOTE:
Make sure to remove old sealant before applying it anew.
ªBº: Sealant 99000-31110
8) Install rear axle shaft to rear axle housing and tighten bearing
retainer nuts to specified torque.
NOTE:
When installing rear axle shaft, be careful not to cause
damage to oil seal lip in axle housing.
Tightening Torque
(a): 23 N
.m (2.3 kg-m, 17.0 lb-ft)
9) Tighten wheel speed sensor bolt to specified torque (if
equipped with ABS).
Tightening Torque
(b): 21 N
.m (2.1 kg-m, 15.5 lb-ft)
10) Refill rear axle (differential) housing with new specified gear oil.
Refer to SECTION 7F for refill.
11) Install brake drum. (For details, refer to BRAKE DRUM
INSTALLATION in SECTION 5.)

YH4
GRAND
VITARA
1. Brake pipe flare nut
2. Brake pipe
3. Brake back plate
1. Bearing retainer
2. Parking brake shoe
lever
3. Clearance1. Nut 1. Wheel speed sensor
2. Wheel speed sensor coupler
3. Wheel speed sensor harness clamp
4. Wheel speed sensor harness
3E-16 REAR SUSPENSION
REAR AXLE HOUSING
REMOVAL
1) Drain differential gear oil.
Carry out steps 2) to 7) and 15) to 18) on both right and left
wheels.
Note that left wheel and its related parts are used in illustrations
in this section.
2) Remove rear brake drum. (Refer to steps 1) to 5) of BRAKE
DRUM REMOVAL.)
3) Disconnect brake pipe from wheel cylinder. With right side wheel
cylinder, disconnect 2 brake pipes.
4) For vehicle with ABS, disconnect wheel speed sensor coupler
and remove wheel speed sensor with its harness.
5) Remove rear wheel bearing retainer nuts from rear axle hous-
ing.
6) Check to ensure that there is clearance between rear wheel
bearing retainer and parking brake shoe lever. If no clearance
is found, loosen cable locking nut further to obtain clearance.

YH4
GRAND
VITARA
1. Flexible hose
2. E-ring
3. Brake pipe
4. Cross member1. LSPV stay
1. Hose
2. Axle housing
1. Propeller shaft
2. Differential carrier
REAR SUSPENSION 3E-17
7) Using special tools (B) & (C) indicated below, draw out axle
shafts. For vehicle equipped with ABS, remove wheel speed
sensor from axle housing before drawing out axle shaft.
NOTE:
Use care not to pull brake back plate along with shaft.
Special Tool
(C): 09943-35512
(B): 09942-15510
8) For vehicle without ABS, remove LSPV stay from axle housing.
9) Remove brake back plate from rear axle housing.
10) Disconnect brake pipe from flexible hose and remove E-ring
(front side).
11) Remove brake pipe clamps and pipes from axle housing and
disconnect breather hose from axle housing.
12) Disconnect propeller shaft and remove propeller shaft from
transmission.

YH4
GRAND
VITARA
1. Axle housingªAº
(c)
1. Axle housing
3E-20 REAR SUSPENSION
7) For vehicle with ABS, connect wheel speed sensor coupler and
install harness.
8) Install propeller shaft and torque nuts to specification.
Tightening Torque
(b): 50 N
.m (5.0 kg-m, 36.5 lb-ft)
9) Remove floor jack from axle housing and connect breather
hose onto axle housing and clamp it securely.
10) Connect brake pipes onto axle housing and clamp them se-
curely.
For clamping positions, refer to SECTION 5A of this manual.
11) Connect brake flexible hose to bracket on axle housing and se-
cure it with E-ring.
12) Install LSPV stay to axle housing, tighten LSPV stay bolt to
specified torque.
And adjust LSPV referring to ªLSPV ASSEMBLY INSPEC-
TION AND ADJUSTMENTº in SECTION 5A.
Tightening Torque
(c): 23 N
.m (2.3 kg-m, 17.0 lb-ft)
13) Connect brake pipe to brake flexible hose and tighten brake
pipe flare nut to specified torque.
Tightening Torque
(d): 16 N
.m (1.6 kg-m, 11.5 lb-ft)
14) Clean mating surface of axle housing (right & left) and brake
back plate, then apply sealant as shown.
ªAº: Sealant 99000-31110
15) Apply grease to axle shaft inner oil seal lip as shown.
ªAº: Grease 99000-25010

YH4
GRAND
VITARA
3. Container 1. Plug cap
2. Vinyl tube
1. Bearing retainer
(e)
(f)
(g)
REAR SUSPENSION 3E-21
16) Apply sealant to mating surface of bearing retainer with brake
back plate.
NOTE:
Make sure to remove old sealant before applying it anew.
ªBº: Sealant 99000-31110
17) Install rear axle shaft to rear axle housing and tighten bearing
retainer nuts to specified torque.
NOTE:
When installing rear axle shaft, be careful not to cause
damage to oil seal lip in axle housing.
Tightening Torque
(e): 23 N
.m (2.3 kg-m, 17.0 lb-ft)
18) For vehicle with ABS, tighten wheel speed sensor bolt to speci-
fied torque.
Tightening Torque
(f): 21 N
.m (2.1 kg-m, 15.5 lb-ft)
19) Connect brake pipes to wheel cylinders (right & left) and tighten
brake pipe flare nuts to specified torque.
Tightening Torque
(g): 16 N
.m (1.6 kg-m, 11.5 lb-ft)
20) Install brake drum (right & left). For details, refer to SECTION
5C ªBRAKE DRUM INSTALLATIONº.
21) Refill differential gear housing with new specified gear oil. Re-
fer to ªON-VEHICLE SERVICEº in SECTION 7F for refill.
22) Fill reservoir with brake fluid and bleed brake system.(For
bleeding operation, see SECTION 5.)

YH4
GRAND
VITARA
5-4 BRAKES
DIAGNOSIS TABLE
ConditionPossible CauseCorrection
Not enough brak-
ing force
Brake oil leakage from brake lines.

Brake disc or pads stained with oil.

Overheated brakes.

Poor contact of shoes on brake drum.

Brake shoes linings stained with oil or wet
with water.

Badly worn brake shoe linings.

Defective wheel cylinders.

Malfunctioning caliper assembly.

Air in system.

Maladjusted sensor spring length of LSPV.

Broken sensor spring of LSPV.

Defective collar of LSPV.

Malfunctioning ABS (Antilock brake system),
if equipped.Locate leaking point and repair.
Clean or replace.
Determine cause and repair.
Repair for proper contact.
Replace.
Replace.
Repair or replace.
Repair or replace.
Bleed system.
Check or adjust.
Replace.
Replace.
Check system and replace as
necessary.
Brake pull
(Brakes not work-
ing in unison)
Pad or shoe linings are wet with water or
stained with oil in some brakes.

Drum-to-shoe clearance out of adjustment in
some brakes.
(Malfunctioning auto adjusting mechanism)

Drum is out of round in some brakes.

Wheel tires are inflated unequally.

Malfunctioning wheel cylinders.

Disturbed front end alignment.

Unmatched tires on same axle.

Restricted brake pipes or hoses.

Malfunctioning caliper assembly.

Loose suspension parts.

Loose calipers.Replace.
Check for inoperative auto adjusting
mechanism.
Replace.
Inflate equally.
Repair or replace.
Adjust as prescribed.
Tires with approximately the same
amount of tread should be used on the
same axle.
Check for soft hoses and damaged
lines.
Replace with new hoses and new
brake pipes.
Check for stuck or sluggish pistons
and proper lubrication of caliper slide
bush.
Caliper should slide.
Check all suspension mountings.
Check and torque bolts to specifica-
tions.
Noise (High pitched
squeak without
brake applied)
Front lining worn out.Replace linings.
Rear brake locked
prematurely
Maladjusted sensor spring length of LSPV.

Malfunction LSPV assembly.Check or adjust.
Replace assembly.
Brake locked
(For vehicles
equipped with
ABS)
Malfunctioning ABS, if equipped.Check system and replace as
necessary.

YH4
GRAND
VITARA
1. LSPV
2. LSPV lever
3. Spring
4. LSPV stay
5. Brake flare nut
[A]: Type A
[B]: Type B
1. Plunger
2. Lip seal
3. LSPV lever
4. Sensor spring
5. From master cylinder
primary chamber
(Rear wheel brake)
6. From master cylinder
secondary chamber
(Front wheel brake)
7. To rear wheel brake
8. Pin
9. Bolt hole
[A] [B]
44
BRAKES PIPE / HOSE / MASTER CYLINDER 5A-3
LSPV (Load Sensing Proportioning Valve) ASSEMBLY (if equipped)
As shown in figure below, LSPV is included within the brake circuit which connects the master cylinder and the rear
wheel brake. It controls the hydraulic pressure applied to the rear wheel brake according to the loaded state of the
vehicle (or weight of the load), whereby preventing the rear wheels from getting locked prematurely.
Also, it releases the above described control over the hydraulic pressure applied to the rear wheel brake, should
any failure occur in the hydraulic circuit of the front wheel brake so that the hydraulic pressure produced in the mas-
ter cylinder is applied to the rear wheel brake directly to operate it.
CONSTITUTION
The LSPV components are grouped into three sections as follows.
ªAº: Sensor section
The main parts in this section are a lever and a spring which senses variation in the vehicle height as affected
by the loaded condition and converts it into the load.
ªBº: Hydraulic pressure control section
Included in this section are a stepped plunger and valve mechanism to execute proportional control.
ªCº: Fail-safe section
The main parts in this section are a chamber which draws in the hydraulic pressure from the front wheel brake
system and a fail-safe piston which releases the valve mechanism in the control section connected to the rear
wheel brake, should any failure occur in the front wheel brake system.