Page 458 of 801

YH4
GRAND
VITARA
7B1-56 AUTOMATIC TRANSMISSION (4 A / T)
8) Stall speed should be within the following specification.
Stall speed: 2,100 ± 2,400 r / min. for G16 engine
2,300 ± 2,600 r / min. for J20 engine
2,300 ± 2,600 r / min. for H25 engine
Check result
Possible cause
Lower than standard
levelFaulty engine output
Defective torque converter
Higher than standard
level in ªDº rangeSlippery O/D clutch
Slippery forward clutch
Malfunctioning O/D one-way clutch
Malfunctioning one-way clutch No. 2
Low line pressure
Higher than standard
level in ªRº rangeSlippery direct clutch
Slippery reverse brake
Low fluid pressure
Slippery O/D clutch
Defective O/D one-way clutch
ROAD TEST
This test is to check if upshift and downshift take place at specified
speed while actually driving vehicle on a level road.
WARNING:
Carry out test in very little traffic area to prevent an acci-
dent.
Test requires 2 persons, a driver and a tester.
1) Warm up engine.
2) With engine running at idle, shift select lever ªDº.
3) Accelerate vehicle speed by depressing accelerator pedal grad-
ually.
4) While driving in ªDº range, check if gear shift occurs properly as
shown in Gear Shift Diagram in this section.
Test result
Possible cause
When 1 2 upshift fails to
occur1±2 shift valve stuck
When 2 3 upshift fails to
occur2±3 shift valve stuck
When 3 O/D upshift
fails to occur3±4 shift valve stuck
When gear shift point is in-
correctMaladjusted throttle cable
Defective shift solenoid valve
-A or -B
1±2, 2±3 or 3±4 shift valve not
operating properly
Page 463 of 801

YH4
GRAND
VITARA
1. Radiator
2. Inlet hose (Outlet from oil cooler)
3. Outlet hose (Inlet to coil cooler)
4. Converter housing
5. Outlet hose
6. Inlet hose
1. A / T throttle cable
2. Adjusting nut
3. Lock nut
1. A / T throttle cable
2. Adjusting nut
3. Lock nut
G16 / J20
H25
1. A / T throttle cable
2. Stopper
3. Inner cable
4. A / T assemblyR100 mm
(3.94 in.)
AUTOMATIC TRANSMISSION (4 A / T) 7B1-61
OIL COOLER HOSES
When replacing them, be sure to note the followings.
to replace clamps at the same time.
to insert hose as far as its limit mark.
to clamp hose securely.
A / T THROTTLE CABLE
ADJUSTMENT
1) Pull inner cable by force of 2 N (0.2 kg, 0.45 lb) or less to be no
slack of inner cable with A / T throttle cable curved as shown in
the figure.
2) Fix stopper to inner cable with clearance ªcº.
Clearance ªcº : 0.8 ± 1.5 mm (0.03 ± 0.06 in.)
3)For G16 / J20 engines
a) Check clearance ªcº. If it is out of specifications, adjust it by
turning cable adjusting nut.
Clearance ªcº : 0.8 ± 1.5 mm (0.03 ± 0.06 in.)
b) Tighten lock nut securely.
For H25 engine
a) Warm up engine and transmission to normal operating tem-
perature.
b) Make sure that accelerator cable is adjusted as specified.
c) With throttle valve closed, check clearance ªcº which should
be within the following specification.
Clearance ªcº : 0.8 ± 1.5 mm (0.03 ± 0.06 in.)
If it is out of specification, adjust it by turning cable adjusting nut.
Page 468 of 801
YH4
GRAND
VITARA
7B1-66 AUTOMATIC TRANSMISSION (4 A / T)
14
2
3
INSTALLATION
Reverse removal procedure to install solenoid valves and noting
the following points.
For details of solenoid valve installation, refer to ªUnit Repairº
section. Use new gasket and O-ring.
Install oil tubes in such order as shown in figure.
For details of oil pan installation, refer to ªUnit Repairº section.
Use new oil pan gasket.
Tighten universal joint flange bolts & nuts and exhaust pipe brack-
et bolts to specified torque.
Fill A / T fluid and check fluid level according to procedure de-
scribed in ªCHANGING FLUIDº previously.
Check for fluid leakage after warming up A / T.
THROTTLE POSITION SENSOR
INSPECTION
Refer to SECTION 6E1 / 6E2 for inspection.
POWER / NORMAL CHANGE SWITCH
INSPECTION
Check Power / Normal change switch for operation referring to Step
4 of Diag. Flow Table B-4 in this section.
If malfunction is found, replace.
Page 476 of 801

YH4
GRAND
VITARA
7B1-74 AUTOMATIC TRANSMISSION (4 A / T)
1. Boot No.2
2. Boot cover
1. Boot clamp
2. Boot No.1
3. Gear shift control lever
1. Boot No.2
2. Transfer shift control
lever
3. Transfer shift lever case4. Transfer shift control
case cover
5. Boot No.1
1. A / T throttle cable
2. Adjusting nut
3. Lock nut
G16 / J20 H25
DISMOUNTING OF TRANSMISSION (WITH
TRANSFER IF EQUIPPED)
IN CABIN
1) Remove console box.
NOTE:
To remove clip, push in its center pin first.
2) Remove boot cover and boot No.2. (if equipped)
3) Remove boot clamp and then remove boot No.1 from transfer
gear shift lever case. (if equipped)
4) With transfer shift control case cover pushed down with fingers,
turn it to counterclockwise and take out shift control lever. (if
equipped)
IN ENGINE ROOM
1) Remove battery, dipstick and oil filler tube.
2) Disconnect A/T throttle cable from throttle cam and bracket.
3) Remove starter motor. But don't disconnect its wiring harness.
4) Remove transmission to engine bolt and nut.
Page 479 of 801

YH4
GRAND
VITARA
AUTOMATIC TRANSMISSION (4 A / T) 7B1-77
ªAº, (d)
1. Drive plate
2. Torque converter
3. Case right stiffener (if equipped)
4. Automatic transmissionTightening torque
(a): 50 N´m
5.0 kg-m
36.5 lb-ft
(b): 65 N´m
6.5 kg-m
47.0 lb-ft
(c): 85 N´m
8.5 kg-m
61.5 lb-ft
(d): 78 N´m
7.8 kg-m
56.5 lb-ft
1. Automatic transmission
2. Transfer (4WD)
3. Engine rear mounting
4. Engine rear mounting member Tightening torque
(a): 50 N´m (5.0 kg-m, 36.5 lb-ft) ªAº: Sealant 99000-31110
REMOUNTING
WARNING:
When moving transmission assembly with torque convert-
er equipped in it, be sure to keep it horizontal. Tilting it with
its front facing down may allow converter to fall off. Where-
by an injury may result.
For remounting, reverse dismounting procedure. Use specified
torque as given below and left.
Tightening torque
N.mkg-mlb-ft
Exhaust No.1 pipe to manifold
bolts or nuts505.036.5
Muffler to exhaust No.2 pipe
nuts606.043.5
Universal joint flange bolts and
nuts505.036.5
Oil filler tube bolts
Select cable bracket bolts232.317.0
Clamp wiring harness and hoses securely.
Refer to ªSelect Cableº section for adjusting procedure of select
cable.
Refer to ªA / T Throttle Cableº section for tuning of A / T throttle
cable.
Follow fluid level check procedure for refilling automatic transmis-
sion fluid and its level adjusting.
Connect battery, and confirm that engine and transmission func-
tion acceptably.
When remounting drive plate, use specified bolts.
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