1987 MAZDA 626 engine

7A INSTALLATION
76G07A-056
76G07A-057
76G07A-058
/vj^C / -(S)
®
T wfryi
®
6. Install the engine mount rubber No.4.
Tightening torque:
(A): 64—89 N-m
(6.5—9.1 m-kg, 47—66 ft-lb)
(|): 67—93 N-m
(6.8—9.5 m-kg, 49—69 ft-lb)
7. Install the engine mount No. 2.
Tightening torque:

(A)
37—52 N-m
(3.8—5.3 m-kg, 27—38 ft-lb)
(§) 67—93 N-m
(6.8—9.5 m-kg, 49—69 ft-lb)
8. Install the crossmember and the left side lower arm
as an assembly.
Tightening torque: Bolts, 36—54 N-m
(3.7—5.5 m-kg, 27—40 ft-lb)
Nut, 75—93 Nm
(7.6—9.5 kg, 55—69 ft-lb)
9. Remove the jack and take off the rope.
10. Remove the SST.
11. Install the end plate.
Tightening torque: 8—11 N-m
(80—110 cm-kg, 69—95 in-lb)
12. Install the starter and harnesses.
13. Install the surge tank bracket and the gusset plate.
Tightening torque:
31—46 N-m
(3.2—4.7 m-kg, 23—34 ft-lb)
(§). 10—12 N-m
(100—120 cm-kg, 87—104 in-lb)
©. 19—30 N-m
(1.9—3.1 m-kg, 14—22 ft-lb)
(§). 43—61 N-m
(4.4—6.2 m-kg, 32—45 ft-lb)
76G07A-059
7A—54

7B OUTLINE
OUTLINE
SPECIFICATIONS
Model G4A-EL (EC-AT) G4A-HL (4-speed) Model G4A-EL (EC-AT)
FE engine F8 engine

Torque converter stall torque ratio 1.710—1.900
: 1
1.900-2.100
: 1

Gear ratio
First 2.800
Gear ratio
Second 1.540
Gear ratio Third 1.000 Gear ratio
Fourth (OD) 0.700
Gear ratio
Reverse 2.333
Final gear ratio 3.700
Number
of
drive plates/ driven plates
Forward clutch 3/3
Number
of
drive plates/ driven plates
Coasting clutch 2/2
Number
of
drive plates/ driven plates 3-4 clutch 5/5 4/4 Number
of
drive plates/ driven plates
Reverse clutch 2/2
Number
of
drive plates/ driven plates
Low and reverse brake 3/3 4/4
Servo diameter (Piston outer dia./retainer inner dia.) mm (in) 78/53 (3.07/2.09) 78/49 (3.07/1.93) 78/56 (3.07/2.20)
Speedometer gear ratio (Driven/Drive gear) 20
: 25 or
21
: 25

Automatic transmission luid
Type Dexron
n or
MED
Automatic transmission luid Capacity
liters (US qt, Imp
qt)
6.8 (7.2, 6.0)

76G07B-002
7 B—2

7B OUTLINE
OPERATION OF COMPONENTS
Low and reverse brake
76U07B-508
Operation Table (G4A-EL)
Range Gear Engine
braking
effect
Operation elements
Range Gear Engine
braking
effect Forward
clutch
Coasting
clutch 3-4
clutch Reverse
clutch
2-4 brake Loftrmm
brake
One-way
clutch 1
One-way clutch 2
Range Gear Engine
braking
effect Forward
clutch
Coasting
clutch 3-4
clutch Reverse
clutch Aoolied Released
Loftrmm
brake
One-way
clutch 1
One-way clutch 2
P — —
R Reverse Yes O O
N -—
D
1st No O O O
D
2nd No o O 0
D 3rd
Below approx.
40 km/h (25 mph)
Yes o O 0 O 0 D 3rd
Above
approx.

40 km/h (25 mph)
Yes 0 o o ® o o
D
OD Yes © o o
S
1st No o 0 o
S
2nd No o 0 0
S
3rd

Below
approx,
40 km/h (25 mph)
Yes 0 0 0 0 o S
3rd Above approx.

40 km/h (25 mph)
Yes o o o ® o o
L 1st No o O o o L 2nd Yes 0 0 o o

HOLD

D
2nd No o o o

HOLD

D 3rd

Below
approx.

40 km/h (25
mpti) Yes o o o 0 o

HOLD

D 3rd Above approx,
40 km/h (25 mph)
Yes o 0 o ® 0 o

HOLD
S
2nd Yes o o 0 o

HOLD
S 3rd
Below approx.
40 km/h (25 mph)
Yes 0 o o 0 o
HOLD
S 3rd Above approx.

40 km/h (25 mph)
Yes o o o ® 0 o

HOLD

L 1st Yes o o o o o

HOLD

L 2nd Yes o 0 0 o
®: Indicates fluid pressure to servo but band not applied due to pressure difference in servo. 76G07B-006 © : Indicates that it does not function to transmition power.
7B-6

OUTLINE 7B
Operation Table (G4A-HL)
Range Gear
Operation elements
Range Gear Engine braking effect
Forward
clutch
Coasting
clutch
3-4 clutch Reverse clutch
2-4 brake Low & One-way
clutch 1
One-way
clutch 2
Range Gear Engine braking effect
Forward
clutch
Coasting
clutch
3-4 clutch Reverse clutch Applied Released reverse brake
One-way
clutch 1
One-way
clutch 2

P
— —

R
—
Yes O 0
N
— —

D
1st No O O O
D 2nd No
o
O
o
D 3rd Yes
o
O 0
®
0
o
D
OD Yes
© O 0

2 2nd Yes
o o o o

1 1st Yes
o o o o o
1 2nd Yes
o o o o
76G07B-007
® : Indicates fluid pressure to servo but band not applied due to pressure difference in servo.
® : Indicates that it does not function to transmit power.
POWER FLOW DIAGRAM
Neutral
1st gear
7B-7

7B TROUBLESHOOTING (G4A-EL)
TROUBLESHOOTING (G4A-EL)
GENERAL NOTE
In the event of a problem with the EC-AT, the cause may be in the engine, EC-AT power train, hydrau-
lic control system, or electronic control system.
When troubleshooting, therefore, it is recommended to begin from those points that can be judged
quickly and easily. The recommended troubleshooting sequence is described below.
76G07B-012
7B-12

7B TROUBLESHOOTING (G4A-EL)

ON VEHICLE-
-f-
—OFF VEHICLE

\ Inspection point
and

\ reference page

Condition
•

Electronic control system Prelim-
inary
Hydraulic
control
system
Power train \ Inspection point
and

\ reference page

Condition
•
7B-66

m CO I m r--
7B-63

i
cn to I m
Section

4B

|

Section

4B

|

ID to i m
CO CO 1 CD
7B-68
|
en CO 1 IX)
to 1 00 r-.
cn CD 1 CO
7B-69
|

1 CD r--
i no
cn s-1 m
Section
4B

r*-cn
S-1 CD h-
"=1-
rJ CO
7 CD r-
(XI o
1 m
cn CM 1 CD
7B-107

|
CD
7 CD 7 m
I
7B-113
I
CO CM
7 CO r-.
m cn
7 CO r-.
cn
7 DO r-
CM CM
7 CO

|
7B-126

7 00 r-
CO 7 cn
1*-r*-
7 m r-
\ Inspection point
and

\ reference page

Condition
•
Brake

light
switch

|

Inhibitor

switch

|

Mode

switch

|

1
CO. •o o X
Idle

switch

Throttle

sensor

|

Water

temp,

switch

|
0 tn c 0) cn
s
ffi
Q tn 01 o Hi >
Pulse

generator

|

"a o c 0) a to CM
TJ O CL ID s CO C\l 3-4

solenoid

|

Lock-up
solenoid

I

ATF

level
and
condition

|

Selector

lever

m Xj CO CJ 03
1 sz
Idle
speed
and
Ignition
timing

Control

valves

Accumulators
Oil
pump
Hydraulic

circuit

Torque

converter

Forward

clutch
Coasting
clutch

Reverse

clutch
JT O
u TT ro 2-4

brake
band
and

servo
$ 2
B cn cii > £ "O C CO
o
XI y
o >. CO S cb a O
One-way

clutch

2

s CI Cn tz JC 5 0-
Planetary

gear

Differential

assembly
Accelerating

Vehicle does
not
move
in
D,
S,
L,
or R
range
O O O O O O O O O O 0

Accelerating

Vehicle moves
in N
range -0 0 -—

Accelerating
Excessive creep
-0 O O -—

Accelerating
No creep
at all
O o o o
o
G 0 O O

Shifting

|

No shift
O O o
o
0 O 0 0
o
o O

Shifting

|
Abnormal shift sequence
0 o O O 0
o
o 0 O o o 0 O

Shifting

|
Frequent shifting 0 o 0 0 o 0 O O 0

Shifting

|

Excessively high
or
low
shift point 0 o 0 O 0 0 o 0 O 0 0
Shifting

|

No lock-up
0 o 0 0 o 0 O O o O

Shifting

|

No kick-down o o o o

Slipping

Engine
run
away
or
slip when
starting vehicle 0 o 0 O o O

Slipping
Engine
run
away
or
slip when
up-
or
down-shifting o o o 0 o O 0 0 O
8 n cn 4S SI V)
Excessive
N to D or N to R

shift shock o O o o o O
8 n cn 4S SI V)
Excessive shift shock when
up-

shifting
or
downshifting o o o o 0 0 0 8 n cn 4S SI V) Excessive shift shock when
changing range 0 0 o 0 o

j
Noise

Transaxle noisy
in N or P

range o o 0 O

j
Noise

Transaxle noisy
in D, S, L,
or

R range o 0 0 O

I
Others

j

No engine braking o O o 0 o o

I
Others

j

No mode change o 0 o o o o o o o
O
o
0

I
Others

j
Transaxle overheats
o o
0 o 0 o 0

I
Others

j
Vehicle moves
in
"P",
or
park-ing gear
not

disengaged when
"P"
is
dis-
engaged
0 O

I
Others

j

Hold indicator flashes o
0
o
0
o
O
o — — —
I
Others

j

Engine will
not
start
o
o
O — — —
76G07B-014
7B—14

7B TROUBLESHOOTING (G4A-EL)
Item Indication Condition
OUTPUT (Digital display)
1
1
st gear position
GEAR* 2 2nd gear position GEAR*
3 3rd gear position
4 Overdrive (OD) gear position
86U07B-033
Note
a) The back-up condition is as following condition
S range, hold mode, and the accelerator pedal depressed fully.
b)The * marked items should be checked during the engine running or driving.
Comprehensive Usage
The EC-AT Tester can be used to inspect slippage of friction elements, shift points, and shift sequence
during the road test.
The inspection procedure is shown in STEP 7 (ROAD TEST).
Solenoid valve operation table
RANGE GEAR SOLENOID VALVES RANGE GEAR 1-2 2-3 3-4 Lock-up
P Non ON
R Reverse ON
N Below aDDrox. 18 km/h (11 mDh) ON N Above approx. 18 km/h (11 mph) ON
1st ON ON
2nd ON ON ON
Below approx. 40 km/h (25 mph)
D 3rd Above approx. 40 km/h (25 mph)
Lock-uo OFF ON Above approx. 40 km/h (25 mph) Lock-up ON ON ON
OD Lock-up OFF ON ON OD Lock-uo ON ON ON ON
1st ON ON
S 2nd ON ON ON S
3rd Below approx. 40 km/h (25 mph) 3rd Above approx. 40 km/h (25 mph) ON
1st ON ON
L 2nd Below approx. 110 km/h (68 mph) ON ON 2nd Above approx. 110 km/h (68 moh) ON
2nd ON ON ON
D 3rd Below approx. 40 km/h (25 moh) 3rd Above approx. 40 km/h (25 moh) ON
2nd ON ON
HOLD S 3rd Below approx. 40 km/h (25 mph) 3rd Above approx. 40 km/h (25 mph) ON
1st ON
L 2nd Below approx. 110 km/h (68 mph) ON ON 2nd Above approx. 110 km/h (68 mph) ON
7B—26

TROUBLESHOOTING (G4A-EL) 7B
STEP 4 (STALL TEST)
This step is performed to determine if there is slippage of the friction elements or malfunction of the
hydraulic components.
Preparation
Check the following items prior to testing:
1. Engine coolant, engine oil and ATF levels.
2. Warm the engine thoroughly to raise the ATF temperature to operating level (50—80°C, 122—176°F).
3. Engage the parking brake and use wheel chocks at the front and rear wheels.
Pull the parking brake Water temperature
ATF
79G07C-084
7B-27