Opel Frontera UBS. Service manual — part 2516
7A–22
AUTOMATIC TRANSMISSION (4L30–E)
Chart 16: Possible Causes Of
Transmission Fluid Leaks
Before attempting to correct an oil leak, the actual source
of the leak must be determined. In many cases, the
source of the leak may be difficult to determine due to
“wind flow” around the engine and transmission.
The suspected area should be wiped clean before in-
specting for the source of the leak.
Oil leaks around the engine and transmission are gener-
ally carried toward the rear of the vehicle by the air
stream. In determining the source of an oil leak, the fol-
lowing two checks should be made:
1. With the engine running, check for external line
pressure leaks.
2. With the engine off, check for oil leaks due to the
raised oil level caused by drainback of converter oil
into the transmission.
Possible Causes Of Fluid Leaks Due To Sealing Malfunction
240RX008
Legend
(1) Electrical Connector (Main Case) Seal
(2) Transmission Vent (Breather)
(3) Speed Sensor O–Ring
(4) Extension (Adapter) Lip Seal
(5) Extension (Adapter) to Main Case Gasket
(6) Overfill and Oil Drain Screws Gasket
(7) Oil Pan Gasket (Main Case)
(8) Selector Shaft Seal
(9) Oil Cooler Connectors (2)
(10) Oil Pan Gasket (Adapter Case)
(11) Converter housing attaching bolts not correctly
torqued
(12) Converter Housing Lip Seal
(13) Line Pressure Tap Plug
(14) Electrical Connector (Adapter Case) Seal
(15) Adapter Case Seal Rings (2)
7A–23
AUTOMATIC TRANSMISSION (4L30–E)
Stall Test
The stall test allows you to check the transmission for
internal abrasion and the one way clutch for slippage.
Torque converter performance can also be evaluated.
The stall test results together with the road test results will
identify transmission components requiring servicing or
adjustment.
Stall Test Procedure:
1. Check the level of the engine coolant, the engine oil,
and the automatic transmission fluid. Replenish if
necessary.
2. Block the wheels and set the parking brake.
3. Connect a tachometer to the engine.
4. Start the engine and allow it to idle until the engine
coolant temperature reaches 70 – 80
°
C (158 –
176
°
F).
5. Hold the brake pedal down as far as it will go.
6. Place the selector in the “D” range.
7. Gradually push the accelerator pedal to the floor.
The throttle valve will be fully open.
Note the engine speed at which the tachometer
needle stabilizes.
Stall Speed : 2,100
±
150 rpm
NOTE: Do not continuously run this test longer than 5
seconds.
8. Release the accelerator pedal.
9. Place the selector in the “N” range.
10. Run the engine at 1,200 rpm for one minute.
This will cool the transmission fluid.
11. Repeat Steps 7 – 10 for the “3”, “2”, “L” and “R”
ranges.
Line Pressure Test
The line pressure test checks oil pump and control valve
pressure regulator valve function. It will also detect oil
leakage.
Line Pressure Test Procedure:
1. Check the level of the engine coolant, the engine oil,
and the automatic transmission fluid.
Replenish if required.
2. Block the wheels and set the parking brake.
3. Remove the pressure detection plug at the left side of
the transmission case.
Set 5–8840–0004–0 pressure gauge and adapter to
the pressure detection plug hole.
241RS001
4. Start the engine and allow it to idle until the engine
coolant temperature reaches 70 – 80
°
C (158 –
176
°
F).
5. Hold the brake pedal down as far as it will go.
6. Place the selector in the “D” range.
7. Note the pressure gauge reading with the engine
idling.
8. Gradually push the accelerator pedal to the floor. The
throttle valve will be fully open.
Note the pressure gauge reading with the accelerator
pedal fully depressed.
NOTE: Do not continuously run this test longer than 5
seconds.
9. Release the accelerator pedal.
10. Place the selector in the “N” range.
11. Run the engine at 1,200 rpm for one minute.
This will cool the transmission fluid.
12. Repeat Steps 7 – 11 for the “3”, “2”, “L”, and “R”
ranges.
13. Install a pressure detection plug to the transmission
case, applying recommended thread locking agent
(LOCTITE 242) or its equivalent to thread of plug.
Make sure that thread is cleaned before applying
locking agents.
14. Tighten the pressure detection plug to the specified
torque.
Torque: 9 – 14N·m (0.9 – 1.4 kg·m/7 – 10 Ib ft)
7A–24
AUTOMATIC TRANSMISSION (4L30–E)
MODE
LEVER
ENGINE SPEED
LINE PRESSURE
FORCE MOTOR
MODE
POSITION
ENGINE SPEED
kPa
PSI
CURRENT (mA)
NORMAL/POWER
D,3,2,L
IDLE
590 – 730
86 – 106
680 – 720
WINTER
D
IDLE
300 – 390
44 – 57
1,020 – 1,060
NORMAL/POWER
WINTER
REVERSE
IDLE
460 – 630
67 – 91
880 – 920
NORMAL/POWER
D, 3, 2, L
STALL SPEED
1,250 – 1,380
181 – 200
70 – 110
WINTER
D
STALL SPEED
1,250 – 1,380
181 – 200
70 – 110
NORMAL/POWER
WINTER
REVERSE
STALL SPEED
1,400 – 1,580
203 – 229
340 – 380
Shift Speed Chart
Transfer gear ratio:
High: 1.000
Rear axle ratio:
4.100
“Normal mode”
Upshift
Range
Throttle
opening
1
→
2
(First Gear) (Second Gear)
km/h (mph)
2
→
3
(Second Gear) (Third Gear)
km/h (mph)
3
→
4
(Third Gear) (Fourth Gear)
km/h (mph)
D
Fully opened
54
∼
60 (34
∼
37)
114
∼
120 (71
∼
75)
166
∼
172 (103
∼
107)
(Drive)
Half throttle
32
∼
38 (20
∼
24)
57
∼
63 (35
∼
39)
99
∼
105 (61
∼
65)
3
Fully opened
54
∼
60 (34
∼
37)
114
∼
120 (71
∼
75)
—
(Third)
Half throttle
32
∼
38 (20
∼
24)
57
∼
63 (35
∼
39)
—
2
Fully opened
54
∼
60 (34
∼
37)
—
—
(Second)
Half throttle
32
∼
38 (20
∼
24)
—
—
Downshift
Range
Throttle
opening
1
←
2
(First Gear) (Second Gear)
km/h (mph)
2
←
3
(Second Gear) (Third Gear)
km/h (mph)
3
←
4
(Third Gear) (Fourth Gear)
km/h (mph)
D
Fully opened
45
∼
51 (28
∼
32)
107
∼
113 (66
∼
70)
155
∼
161 (96
∼
100)
D
(Drive)
Half throttle
14
∼
20 (9
∼
12)
33
∼
39 (20
∼
24)
64
∼
70 (40
∼
43)
(Drive)
Fully closed
13
∼
19 (8
∼
12)
19
∼
25 (12
∼
16)
27
∼
33 (17
∼
21)
3
Fully opened
45
∼
51 (28
∼
32)
107
∼
113 (66
∼
70)
—
3
(Third)
Half throttle
14
∼
20 (9
∼
12)
33
∼
39 (20
∼
24)
—
(Third)
Fully closed
13
∼
19 (8
∼
12)
19
∼
25 (12
∼
16)
—
2
Fully opened
45
∼
51 (28
∼
32)
97
∼
103 (60
∼
64)
—
2
(Second)
Half throttle
14
∼
20 (9
∼
12)
97
∼
103 (60
∼
64)
—
(Second)
Fully closed
13
∼
19 (8
∼
12)
97
∼
103 (60
∼
64)
—
L
(First)
—
50
∼
56 (31
∼
35)
—
—
7A–25
AUTOMATIC TRANSMISSION (4L30–E)
“Power mode”
Upshift
Range
Throttle
opening
1
→
2
(First Gear) (Second Gear)
km/h (mph)
2
→
3
(Second Gear) (Third Gear)
km/h (mph)
3
→
4
(Third Gear) (Fourth Gear)
km/h (mph)
D
Fully opened
54
∼
60 (34
∼
37)
114
∼
120 (71
∼
75)
174
∼
180 (108
∼
112)
(Drive)
Half throttle
41
∼
47 (25
∼
29)
84
∼
90 (52
∼
56)
136
∼
142 (84
∼
88)
3
Fully opened
54
∼
60 (34
∼
37)
114
∼
120 (71
∼
75)
—
(Third)
Half throttle
41
∼
47 (25
∼
29)
84
∼
90 (52
∼
56)
—
2
Fully opened
54
∼
60 (34
∼
37)
—
—
(Second)
Half throttle
41
∼
47 (25
∼
29)
—
—
Downshift
Range
Throttle
opening
1
←
2
(First Gear) (Second Gear)
km/h (mph)
2
←
3
(Second Gear) (Third Gear)
km/h (mph)
3
←
4
(Third Gear) (Fourth Gear)
km/h (mph)
D
Fully opened
45
∼
51 (28
∼
32)
107
∼
113 (66
∼
70)
163
∼
169 (101
∼
105)
D
(Drive)
Half throttle
22
∼
28 (14
∼
17)
57
∼
63 (35
∼
39)
108
∼
114 (67
∼
71)
(Drive)
Fully closed
13
∼
19 (8
∼
12)
23
∼
29 (14
∼
18)
46
∼
52 (29
∼
32)
3
Fully opened
45
∼
51 (28
∼
32)
107
∼
113 (66
∼
70)
—
3
(Third)
Half throttle
22
∼
28 (14
∼
17)
57
∼
63 (35
∼
39)
—
(Third)
Fully closed
13
∼
19 (8
∼
12)
23
∼
29 (14
∼
18)
—
2
Fully opened
45
∼
51 (28
∼
32)
97
∼
103 (60
∼
64)
—
2
(Second)
Half throttle
22
∼
28 (14
∼
17)
97
∼
103 (60
∼
64)
—
(Second)
Fully closed
13
∼
19 (8
∼
12)
97
∼
103 (60
∼
64)
—
L
(First)
—
50
∼
56 (31
∼
35)
—
—
“Winter mode”
D range, winter mode ON
→
OFF
31
∼
37 km/h (19
∼
23 mph)
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