2004 DAEWOO NUBIRA automatic transaxle

5A1 – 30IZF 4 HP 16 AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
Drive Range – Fourth Gear ;
Emergency/Substitute Mode
In Drive 4, transaxle drive is via the input shaft and
clutches E and C. The elements of this transaxle function
are as follows:
S Clutch E is engaged to drive the rear planetary gear
carrier.
S The rear planetary gear carrier drives the rear ring
gear.
S The rear ring gear carrier drives the differential
gear.Control
Clutch E Engaged
Solenoid 2 will be switched OFF. Line pressure, which is
supplied by the reduction valve, flows to the inlet port of
clutch valve E. Fluid will then pass through the clutch valve
and clutch E will engage.
Clutch C Engaged
EDS 4 will be switched OFF causing the fluid level to be
high. Line pressure will be directed to the safety valve,
clutch valve D and holding valve D. Clutch valve C and
holding valve C will engage as pressure flows through the
safety valve.

ZF 4 HP 16 AUTOMATIC TRANSAXLE 5A1 – 31
DAEWOO V–121 BL4
Drive Range – Third Gear ; Emergency/Substitute Mode

5A1 – 32IZF 4 HP 16 AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
Drive Range – Third Gear ;
Emergency/Substitute Mode
In Drive 3, transaxle drive is via the input shaft to clutches
B and E. The elements of this transaxle function are as fol-
lows:
S Clutches B and E are engaged to drive the rear sun
gear and rear planetary gear carrier clockwise.
S The clockwise rotation of the rear sun gear and rear
planetary gear carrier will cause the front planetary
gear to rotate in the same direction.Control
Clutch B Engaged
In Park and Neutral solenoid valves 1 and 2 are both ON.
Pressure control solenoids (EDS) 4 and 6 are also turned
ON.
When EDS 6 is ON, the fluid supplied from the reduction
valve flows to the safety valve, clutch valve B and holding
valve B. The oil that is supplied to the inlet port of the clutch
valve presses on the valve spool. Line pressure then flows
to the holding valve and check ball, engaging clutch B.

ZF 4 HP 16 AUTOMATIC TRANSAXLE 5A1 – 33
DAEWOO V–121 BL4
COMPONENT LOCATOR
TRANSAXLE IDENTIFICATION INFORMATION
1. Part Number
2. Serial Number3. Model Code
4. Manufactured Nation and Company

5A1 – 34IZF 4 HP 16 AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
TORQUE CONVERTER
1. Torque Converter Housing
2. Torque Converter
3. Torque Converter Gasket
4. Steel Gasket
5. Oil Baffle Plate
6. Bolt
7. Magnet
8. Oil Filter
9. O–ring10. Screw
11. Pressure Plug
12. Pressure Plug
13. Oil Drain Plug
14. Oil Level Plug
15. Screw
16. Bolt
17. Bolt

ZF 4 HP 16 AUTOMATIC TRANSAXLE 5A1 – 35
DAEWOO V–121 BL4
TRANSAXLE HOUSING
1. Transaxle Housing
2. Bushing
3. Shaft Seal
4. Axle Shaft Seal
5. Sealing Sleeve
6. Breather Pipe
7. Sleeve Protector
8. Type Plate
9. Cable Terminal10. Output Speed Sensor
11. Washer
12. Bolt
13. Shim
14. Shim
15. Park/Neutral Position Switch
16. Bolt
17. Sealing sleeve

5A1 – 36IZF 4 HP 16 AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
OIL PUMP
1. Oil Pump
2. Oil Pump Seal
3. Washer
4. O–ring5. Dowel Pin
6. Bolt
7. Bolt

ZF 4 HP 16 AUTOMATIC TRANSAXLE 5A1 – 37
DAEWOO V–121 BL4
REAR COVER & OIL PAN COVER
1. Rear Cover
2. Piston Ring
3. O–ring
4. Needle Bearing
5. Shim
6. Screw Plug7. Bolt
8. Oil Pan
9. Oil Pan Gasket
10. Oil Pan Bracket
11. Bolt