2004 DAEWOO LACETTI brakes

2D – 10IREAR SUSPENSION
DAEWOO V–121 BL4
Installation Procedure
1. Install the rear knuckle into the vehicle and install
the brake line into the strut assembly bracket.
2. Install the knuckle–to–strut assembly bolts and
nuts. Do not tighten.
3. Install the clip securing the brake line to the strut
assembly.
4. Tighten the knuckle–to–strut assembly nuts.
Tighten
Tighten the knuckle–to–strut assembly nuts to 100
NSm (74 lb–ft).
5. Connect the rear trailing link to the rear knuckle.
Refer to ”Rear Trailing Link” in this section.
6. Connect the rear parallel link to the knuckle. Refer
to ”Rear Parallel Link” in this section.
7. Connect the front parallel link to the knuckle. Refer
to ”Front Parallel Link” in this section.
8. Connect the parking brake to the knuckle assembly.
Refer to Section 4G, Parking Brake.
9. On vehicles equipped with rear drum brakes, con-
nect the brake line to the knuckle assembly. On
vehicles equipped with rear disc brakes, install the
rear brake caliper onto the knuckle assembly. Refer
to Section 4E1, Rear Disc Brakes.
10. On vehicles equipped with the antilock braking sys-
tem, install the ABS speed sensor. Refer to Section
4F, Antilock Brake System.
11. Install the wheel. Refer to Section 2E, Tires and
Wheels.
12. Lower the vehicle.
TRAILING LINK
Removal Procedure
1. Raise and suitably support the vehicle.
2. Remove the rear trailing link–to–rear knuckle nut.
3. Remove the rear trailing link–to–trailing link bracket
nut and the rear trailing link–to–knuckle bolt.
4. Remove the rear trailing link.

REAR SUSPENSION 2D – 15
DAEWOO V–121 BL4
5. Remove the crossmember–to–body bolts.
6. Remove the crossmember.
Installation Procedure
1. Install the crossmember.
2. Install the crossmember–to–body bolts.
Tighten
Tighten the crossmember–to–body bolts to 112 NSm
(83 lb–ft).
3. Route and install the rear wheel speed sensor wir-
ing.
4. Install the rear parallel link bolt onto the crossmem-
ber. Refer to ”Rear Parallel Link”in this section.
5. Install the front parallel link bolt onto the crossmem-
ber. Refer to ”Front Parallel Link” in this section.
6. Lower the vehicle.
HUB AND BEARING ASSEMBLY
Removal Procedure
1. Raise and suitably support the vehicle.
2. Remove the wheel. Refer to Section 2E, Tires and
Wheels.
3. On vehicles equipped with rear drum brakes, re-
move the rear brake drum detent screw and brake
drum. Refer to Section 4E2, Rear Drum Brakes.
4. On vehicles equipped with rear disc brakes, remove
the rear brake caliper and rear brake disc. Refer to
Section 4E1, Rear Disc Brakes.
5. Remove the hub bolts and hub assembly.

2D – 16IREAR SUSPENSION
DAEWOO V–121 BL4
Installation Procedure
1. Install the hub assembly.
Tighten
Tighten the hub assembly bolts to 65 NSm (48 lb–ft).
2. Install the hub nut.
3. On vehicles equipped with rear disc brakes, install
the rear brake disc and rear brake caliper. Refer to
Section 4E1, Rear Disc Brakes.
4. On vehicles equipped with rear drum brakes, install
the rear brake drum and the brake drum detent
screw. Refer to Section 4E2, Rear Drum Brakes.
5. Install the wheel. Refer to Section 2E, Tires and
Wheels.
6. Lower the vehicle.

2D – 18IREAR SUSPENSION
DAEWOO V–121 BL4
5. Install the lock nut onto the strut dampener rod.
Tighten
Tighten the ball joint–to–control arm nuts to 100 NSm
(74 lb–ft). Tighten the strut dampener–to–strut mount
nut to 75 NSm (55 lb–ft).
6. Release the spring.
7. Remove the strut assembly from the spring com-
pressor and install the strut assembly into the ve-
hicle. Refer to ”Strut Assembly” in this section.
KNUCKLE
Disassembly Procedure
1. Remove the knuckle from the vehicle. Refer to
”Knuckle Assembly” in this section.
2. Remove the brake drum. Refer to Section 4E2,
Rear Drum Brakes.
3. Remove the wheel hub. Refer to ”Hub and Bearing
Assembly” in this section.
4. On vehicles equipped with rear drum brakes, re-
move the rear drum brake assembly. On vehicles
equipped with rear disc brakes, remove the rear
disc brake assembly. Refer to Section 4E1, Rear
Disc Brakes.
5. Remove the brake splash shield. Refer to Section
4E2, Rear Drum Brakes.
Assembly Procedure
1. Install the brake splash shield. Refer to Section
4E1, Rear Disc Brakes.
2. On vehicles equipped with rear drum brakes, install
the rear drum brake assembly. On vehicles
equipped with rear disc brakes, install the rear disc
brake assembly. Refer to Section 4E1, Rear Disc
Brakes.
3. Install the wheel hub. Refer to ”Hub and Bearing
Assembly” in this section.
4. Install the brake caliper and brake rotor or the
brake drum. Refer to Section 4E1, Rear Disc
Brakes and 4E2, Rear Drum Brakes.
5. Install the knuckle into the vehicle. Refer to
”Knuckle Assembly” in this section.

SECTION : 4A
HYDRAULIC BRAKES
CAUTION : Disconnect the negative battery cable before removing or installing any electrical unit or when a tool
or equipment could easily come in contact with exposed electrical terminals. Disconnecting this cable will help
prevent personal injury and damage to the vehicle. The ignition must also be in LOCK unless otherwise noted.
TABLE OF CONTENTS
SPECIFICATIONS4A–2 . . . . . . . . . . . . . . . . . . . . . . . . . .
General Specifcations 4A–2. . . . . . . . . . . . . . . . . . . . .
Fastener Tightening Specifications 4A–2. . . . . . . . . .
COMPONENT LOCATOR4A–3 . . . . . . . . . . . . . . . . . . . .
Brake System (ABS) 4A–3. . . . . . . . . . . . . . . . . . . . . . .
Brake System (NON–ABS) 4A–4. . . . . . . . . . . . . . . . .
DIAGNOSIS4A–5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake System Testing 4A–5. . . . . . . . . . . . . . . . . . . . .
Brake Hose Inspection 4A–5. . . . . . . . . . . . . . . . . . . . .
Warning Lamp Operation 4A–5. . . . . . . . . . . . . . . . . . .
Stop Lamp Warning Circuit Diagnosis 4A–6. . . . . . . . MAINTENANCE AND REPAIR4A–10 . . . . . . . . . . . . . .
ON–VEHICLE SERVICE 4A–10. . . . . . . . . . . . . . . . . . . .
Manual Bleeding the Brakes 4A–10. . . . . . . . . . . . . . .
Pressure Bleeding the Brakes 4A–12. . . . . . . . . . . . . .
Brake Hose Rear 4A–13. . . . . . . . . . . . . . . . . . . . . . . . .
Brake Hose Front 4A–14. . . . . . . . . . . . . . . . . . . . . . . . .
Stoplamp Switch 4A–15. . . . . . . . . . . . . . . . . . . . . . . . .
Brake Pedal 4A–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GENERAL DESCRIPTION AND SYSTEM
OPERATION4A–17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warning Lamp Operation 4A–17. . . . . . . . . . . . . . . . . .

4A – 2IHYDRAULIC BRAKES
DAEWOO V–121 BL4
SPECIFICATIONS
GENERAL SPECIFCATIONS
1.4/1.6/1.8/2.0 DOHC Engine
ApplicationMillimetersInches
Brake Drums:
Inside Diameter
Maximum Rebore Diameter
Out–of–Round200.00
201.00
0.047.87
7.91
0.0016
Front Brake Rotors:
Discard Thickness
Lateral Runout (Installed)
Rotor Diameter
Rotor Thickness (New)
Thickness Variation22.00
0.030
256
24.00
0.010.87
0.001
10.07
0.95
0.0004
Rear Brake Rotors:
Discard Thickness
Lateral Runout (Installed)
Rotor Diameter
Rotor Thickness (New)
Thickness Variation8
0.030
258
10.4
0.010.31
0.001
10.15
0.40
0.0004
Master Cylinder:
Bore Diameter (Nominal)
Bore Diameter (Maximum)22.22
22.290.875
0.878
Caliper:
Minimum Piston Diameter (Front)
Minimum Piston Diameter (Rear)54.00
322.126
1.260
Wheel Cylinder Diameter:
Maximum
Nominal20.7
20.640.815
0.812
FASTENER TIGHTENING SPECIFICATIONS
ApplicationNSmLb–FtLb–In
Bleeder Screw8–71
Brake Lines1612–
Brake Pedal–to–Pedal Bracket Hex Nut1813–
Front Disc Brake Hose–to–Caliper Bolt4030–
Rear Disc Brake Hose–to–Caliper Bol3224–

HYDRAULIC BRAKES 4A – 3
DAEWOO V–121 BL4
COMPONENT LOCATOR
BRAKE SYSTEM (ABS)
1. RH Rear Brake Hose
2. RH 3rd Rear Brake Pipe
3. Clip
4. 2nd Rear Brake Pipe (A)
5. 2nd Front Brake Pipe
6. RH Front Brake Hose
7. 2nd Rear Brake Pipe (B)
8. 1st Rear Brake Pipe (A)9. 1st Rear Brake Pipe (B)
10. Front Brake Pipe
11. LH Front Brake Hose
12. LHD Master Cylinder/Booster Assembly
13. ABS Modulator
14. LH Rear Brake Hose
15. LH 3rd Rear Brake Pipe

4A – 4IHYDRAULIC BRAKES
DAEWOO V–121 BL4
BRAKE SYSTEM (NON–ABS)
1. RH Rear Brake Hose
2. RH 3rd Rear Brake Pipe
3. Clip
4. 2nd Rear Brake Pipe
5. 2nd Front Brake Pipe
6. RH Front Brake Hose
7. 2nd Rear Brake Pipe
8. Front Brake Pipe9. LH Front Brake Hose
10. Connector
11. 1st Rear Brake Pipe (A)
12. 1st Front Brake Pipe
13. 1st Rear Brake Pipe (B)
14. LHD Master Cylinder/Booster Assembly
15. LH Rear Brake Hose
16. LH 3rd Rear Brake Pipe