YH4
GRAND
VITARA
AUTOMATIC TRANSMISSION (4 A / T) 7B1-79
09925-37810
Oil pressure gauge09927-56010
Gear stopper
(only for G16 / J20)09931-76030
16 / 14 pin DLC
(OBD-II adapter) cable
09931-76011
SUZUKI scan tool (Tech 1A) kit1. Storage case
2. Operator's manual
3. Tech 1A
4. DLC cable
5. Test lead / probe
6. Power source cable
7. DLC cable adapter
8. Self±test adapterMass storage cartridge
REQUIRED SERVICE MATERIALS
MATERIALRECOMMENDED
SUZUKI PRODUCTUSE
A / T fluidAn equivalent of DEXRON-IIIAutomatic transmission
Parts lubrication when installing
Lithium greaseSUZUKI SUPER GREASE A
(99000±25010)Cable ends
SealantSUZUKI BOND NO.1215
(99000-31110)Flywheel bolts
SPECIAL TOOLS
YH4
GRAND
VITARA
CLUTCH 7C1-3
DIAGNOSIS
ConditionPossible CauseCorrection
SlippingImproper clutch pedal free travel.
Worn or oily clutch disc facing.
Warped disc, pressure plate or flywheel
surface.
Weakened diaphragm spring.
Master cylinder piston or seal cup not returning.Bleed air or replace master
cylinder.
Replace disc.
Replace disc, clutch cover or
flywheel.
Replace clutch cover.
Repair master cylinder.
Dragging clutchImproper clutch pedal free travel.
Weakened diaphragm spring, or worn spring tip.
Rusted input shaft splines.
Damaged or worn splines of transmission
input shaft.
Excessively wobbly clutch disc.
Clutch facings broken or dirty with oil.
Fluid leakage.Bleed air or replace master
cylinder.
Replace clutch cover.
Lubricate.
Replace input shaft.
Replace disc.
Replace disc.
Repair or replace.
Clutch vibrationGlazed (glass-like) clutch facings.
Clutch facings dirty with oil.
Release bearing slides unsmoothly on input
shaft bearing retainer.
Wobbly clutch disc, or poor facing contact.
Weakened torsion springs in clutch disc.
Clutch disc rivets loose.
Distorted pressure plate or flywheel surface.
Weakened or loosened engine mounting
bolt or nut.Repair or replace disc.
Replace disc.
Lubricate or replace input
shaft bearing retainer.
Replace disc.
Replace disc.
Replace disc.
Replace clutch cover or flywheel.
Retighten or replace mounting.
Noisy clutchWorn or broken release bearing.
Input shaft front bearing worn down.
Excessive rattle of clutch disc hub.
Cracked clutch disc.
Pressure plate and diaphragm spring rattling.Replace release bearing.
Replace input shaft bearing.
Replace disc.
Replace disc.
Replace clutch cover.
Grabbing clutchClutch disc facings soaked with oil.
Clutch disc facings excessively worn.
Rivet heads showing out of facing.
Weakened torsion springs.Replace disc.
Replace disc.
Replace disc.
Replace disc.
YH4
GRAND
VITARA
7D
TRANSFER 7D-1
The aluminum transfer case directly connected to the
back of the transmission contains the input gear,
countershaft & gear, output rear shaft, output low gear
and output front shaft (for front drive) connected by
way of the hyvo-chain.
The transfer has such a selective mechanism as to
enable the shift control lever to make selection of high
speed (direct connection with transmission output:
main shaft), low speed (speed reduction by input
gear, counter gear and output low gear) or neutral by
way of the reduction sleeve located between input
gear and output low gear, and selection of two-wheel-
drive (high speed only) or four-wheel-drive (high or
low speed) by way of the front drive clutch sleeve lo-cated at the center of the output rear shaft. Also, with
a synchronizer installed to the front drive clutch, it is
possible to change the drive mode between 2WD
(high speed only) and 4WD (high speed only) even
while running.
The front drive shift fork has an auxiliary spring to
make a smooth shift from 4H to 2H possible.
The case has an oil gutter and a plate at synchronizer
to provide proper lubrication even under the strict
conditions of use.
WARNING:
For towing the vehicle for the purpose of repair or
the like, follow the towing instructions in OWN-
ER'S MANUAL.
SECTION 7D
TRANSFER
CONTENTS
GENERAL DESCRIPTION7D-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DIAGNOSIS7D-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnosis Table7D-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE7D-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gear Oil7D-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transfer Oil Seals7D-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Speedometer Driven Gear7D-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Rear Mounting7D-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transfer Assembly7D-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dismounting7D-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remounting7D-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UNIT REPAIR7D-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TIGHTENING TORQUE SPECIFICATIONS7D-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REQUIRED SERVICE MATERIALS7D-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SPECIAL TOOL7D-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GENERAL DESCRIPTION
YH4
GRAND
VITARA
1. Match mark
1. Transfer rear case
2. Oil seal
ªAº
ªBº
TRANSFER 7D-3
ON-VEHICLE SERVICE
GEAR OIL
Refer to ªON-VEHICLE SERVICEº of Section 7A or 7A1.
TRANSFER OIL SEALS
REAR CASE OIL SEAL
1) Lift up vehicle horizontally.
2) Give match marks on joint flange and propeller shaft as shown
in figure.
3) Remove 4 bolts from rear propeller shaft flange and remove pro-
peller shaft.
4) Using screwdriver, remove oil seal.
5) Using special tool(A) and plastic hammer, pressfit new oil seal
up to case surface. Be sure to apply grease to oil seal lip.
ªAº: Grease 99000-25010
Special Tool
(A): 09940-53111
6) Clean and inspect sliding portion of propeller shaft front end
(where oil seal contacts) before installation and if even small
dent or scratch exists, correct and clean it again.
Then apply grease inside splines of propeller shaft.
ªBº: Grease 99000-25010
7) Install propeller shaft and torque universal joint flange bolts to
specification.
CAUTION:
Be sure to use only specified bolts, nuts and lock wash-
ers for universal joint flange.
Tightening Torque:
(a): 50 N
.m (5.0 kg-m, 36.5 lb-ft)
CENTER CASE OIL SEAL (Front side)
In addition to the procedure for rear case oil seal, it is necessary to
drain and refill gear oil of transfer. Refer to Section 7A ªON-VE-
HICLE SERVICEº for oil specification.
YH4
GRAND
VITARA
TRANSFER 7D-7
09940-53111
Bearing installer
UNIT REPAIR
Refer to the same section of UNIT REPAIR MANUAL mentioned in FOREWORD of this manual.
TIGHTENING TORQUE SPECIFICATIONS
FasteningportionTightening torqueFastening ortionN.mkg-mlb-ft
Oil filler / level and drain plugs232.317.0
Engine rear mounting bolts505.036.5
Universal joint flange bolts505.036.5
Speed sensor bolt60.64.5
REQUIRED SERVICE MATERIALS
MATERIALRECOMMENDED
SUZUKI PRODUCTUSE
Lithium greaseSUZUKI SUPER GREASE A
(99000-25010)
Oil seal lips and O-rings.
Splines of propeller shaft.
Select return system.
Shift control lever.
SPECIAL TOOL
YH4
GRAND
VITARA
DIFFERENTIAL (FRONT) 7E-5
DIAGNOSIS
DIAGNOSIS TABLE
Differential Assembly
ConditionPossible CauseCorrection
Gear noiseDeteriorated or water mixed lubricant
Inadequate or insufficient lubricant
Maladjusted backlash between bevel
pinion and gear
Improper tooth contact in the mesh between
bevel pinion and gear
Loose bevel gear securing bolts
Damaged side gear(s) or side pinion(s)Repair and replenish
Repair and replenish
Adjust
Adjust or replace
Replace or retighten
Replace
Bearing noise(Constant noise) Deteriorated or water
mixed lubricant
(Constant noise) Inadequate or insufficient
lubricant
(Noise while coasting) Damaged bearing(s)
of bevel pinion
(Noise while turning) Damaged diff. side
bearing(s) or axle bearing(s)Repair and replenish
Repair and replenish
Replace
Replace
Oil leakageWorn or damaged oil seal
Excessive oil
Loose differential carrier boltsReplace
Adjust oil level
Replace or retighten
2WD / 4WD
switching errorDefective actuator
Abnormality in 4WD control systemReplace
Inspect referring to ª4WD
CONTROL SYSTEM DIAG-
NOSTIC FLOW TABLEº.
4WD Control System Diagnostic Flow Table
Before performing the trouble diagnosis, check that the transfer and front differential are in good condition and
there is no air leakage from air hoses and the actuator. Refer to ªON-VEHICLE SERVICEº in this section for air
leakage.
[NOTES ON SYSTEM CIRCUIT INSPECTION]
Be sure to read ªPrecautions for Electrical Circuit Serviceº in Section 0A before circuit inspection and observe
what is written there.
For system circuit, refer to the figure of ªGENERAL DESCRIPTIONº in this section.
For terminal arrangement, refer to ª4WD Control Circuit Inspectionº in this section.
YH4
GRAND
VITARA
DIFFERENTIAL (FRONT) 7E-9
Viscosity chart SAE
Temperature
ON-VEHICLE SERVICE
MAINTENANCE SERVICE
NOTE:
When having driven through water, check immediately if wa-
ter has entered (if so, oil is cloudy). Water mixed oil must be
changed at once.
Whenever vehicle is hoisted for any other service work than
oil change, also be sure to check for oil leakage and status
of breather hoses.
Gear Oil Change
NOTE:
Hypoid gear oil must be used for differential.
It is highly recommended to use SAE 80W ± 90 viscosity.
1) Before oil change or inspection, be sure to stop engine and lift
up vehicle horizontally.
2) Check oil level and existence of leakage. If leakage is found, cor-
rect its cause.
3) Drain old oil and pour proper amount of gear oil as specified be-
low (roughly up to level hole).
4) Apply sealant to thread of drain plug (b) and torque plugs to
specification.
Sealant 99000-31110
Tightening Torque
(a): 23 N
.m (2.3 kg-m, 17.0 lb-ft)
(b): 23 N
.m (2.3 kg-m, 17.0 lb-ft)
Specified gear oil: Hypoid gear oil API GL-5
SAE 75W ± 85, 90 or 80W ± 90
For oil viscosity, refer to left chart.
Oil capacity: 1.0 liters (2.1 / 1.8 US / lmp. pt)
YH4
GRAND
VITARA
DIFFERENTIAL (FRONT) 7E-17
09951-16080
Bearing installer09951-26010
Bush remover plate09918-18110
Air pressure regulator
09367-04002
3-way joint
UNIT REPAIR
Refer to the same section of UNIT REPAIR MANUAL mentioned in FOREWORD of this manual.
TIGHTENING TORQUE SPECIFICATIONS
FasteningportionTightening torqueFastening ortionN.mKg-mlb-ft
Differential oil filler / level plug232.317.0
Differential oil drain plug232.317.0
Differential mounting front bolts858.561.5
Differential mounting bracket bolts505.036.5
Front drive shaft flange bolts505.036.5
Propeller shaft flange bolts505.036.5
Pump assembly bolts131.39.5
REQUIRED SERVICE MATERIAL
MATERIALRECOMMENDED
SUZUKI PRODUCTUSE
SealantSUZUKI BOND NO. 1215
(99000-31110)Front differential drain plug
SPECIAL TOOLS