sensor DAEWOO MATIZ 2003 Service Repair Manual

ENGINE EXHAUST 1G–5
DAEWOO M-150 BL2
D102G503
6. Remove the front exhaust pipe and the catalytic con-
verter assembly.
a. Front exhaust pipe.
b. Catalytic converter.
7. Clean the sealing surfaces on the front exhaust pipe
flange and the exhaust manifold.
8. Check the exhaust pipe and the catalytic coverter for
holes, damage, open seams, or other deterioration
which could permit exhaust fumes to seep into the
passenger compartment.
D12G504A
25–35 Nm
25–35 Nm
Installation Procedure
1. Using the nuts and the gasket, secure the front ex-
haust pipe and the catalytic converter assembly to
the exhaust manifold.
Tighten
Tighten the nuts to 25–35 Nm (18–25 lb-ft).
a. Front exhaust pipe nut.
2. Install the front exhaust pipe and the catalytic con-
verter assembly to the front muffler pipe flange. Use
the nuts to secure the front exhaust pipe and the cat-
alytic converter assembly.
Tighten
Tighten the nuts to 25–35 Nm (18–25 lb-ft).
b. Front muffler pipe nut.
Notice : Make sure not to contact the components with
the underbody.
3. Connect the Heated Oxygen Sensor (HO2S) connec-
tor.
4. Install the floor console. Refer to Section 9G, Interior
Trim.
D102G501
PUP-UP CATALITIC CONVERTER
Removal Procedure
1. Remove the front exhaust pipe from the pup-up cata-
litic converter.

Remove the nuts (1).

Remove the gasket (2).
2. Check the gasket for damage or leak.

1G–6 ENGINE EXHAUST
DAEWOO M-150 BL2
MAA1B010
3. Remove the air cleaner assembly. Refer to Section
1B, SOHC Engine Mechanical.
4. Disconnect Oxygen Sensor (O2S) connector.
5. Remove the exhaust manifold heat shield.
6. Remove the exhaust manifold. Refer to Section 1B,
SOHC Engine Mechanical.
MAA1B040
7. Remove pup-up catalytic convertor.

Remove the bolts.
MAA1B041
Installation Procedure
1. Install pup-up catalytic convertor to exhaust pipe.
Tighten
Tighten the bolts to 25–35 Nm (18–25 lb-ft).
MAA1B011
2. Install exhaust manifold. Refer to Section 1B, SOHC
Engine Mechanical.
Tighten
Tighten the bolts and nuts to 17–27 Nm (13–20 lb-ft).
Tighten the exhaust manifold heat shield bolts to
8–12 Nm (71–106 lb-in).

FRONT SUSPENSION 2C–7
DAEWOO M-150 BL2
REPAIR INSTRUCTIONS
ON–VEHICLE SERVICE
D16B501A
STRUT ASSEMBLY
Removal Procedure
1. Open the hood.
2. Remove the top of the strut assembly at passenger
seat side.

For vehicle with power steering, remove the power
steering fluid reservoir (1).

Remove the nuts (2).
D16B502A
3. Remove the top of the strut assembly at driver side.

Remove the bolt and the fuse box (1, 2).

Remove the nuts (3).
D106B503
4. Remove the lower of the strut assembly.

Raise and suitably support the vehicle.

Remove the wheel. Refer to Section 2E, Tires and
Wheels.

Remove the ABS front speed sensor electrical wire
from the bracket, if applicable (1).

Disconnect the brake hose from the bracket (2).

Remove the strut bracket bolts (3).
5. Remove the strut bracket assembly from the vehicle.

2C –8 FRONT SUSPENSION
DAEWOO M-150 BL2
D16B504A
70–90 Nm
Installation Procedure
1. Install the strut assembly to the vehicle with the strut
assembly–to–strut bracket bolts.
Tighten
Tighten the strut assembly–to–strut bracket bolts to
70–90 Nm (52–66 lb-ft).
2. Connect the brake hose to the bracket.
3. Install the ABS front speed sensor electrical wire to
the bracket, if applicable.
D16B505A
18–28 Nm
18–28 Nm4. Install the wheel. Refer to Section 2E, Tires and
Wheels.
5. Lower the vehicle.
6. Install the nuts.

Install the nuts at passenger side (1).
Tighten
Tighten the nuts to 18–28 Nm (13–21 lb-ft).

Install the nuts at driver side (2).
Tighten
Tighten the nuts to 18–28 Nm (13–21 lb-ft).
7. Install the power steering fluid reservoir.
8. Install the fuse box and bolt.
D106B506
KNUCKLE ASSEMBLY
Tools Required
KM 507–B Ball Joint Remover
Removal Procedure
1. Remove the caulking nut.

Straighten the bent flange caulking nut (1).

Remove the caulking nut (2).

Remove the washer (3).
2. Remove the wheel. Refer to Section 2E, Tires and
Wheels.
D105B501
3. Separate the tie rod end from the knuckle assembly.

Remove the cotter pin (1).

Remove the castellated nut (2).

Install the ball joint remover KM 507–B.

Separate the tie rod end from the knuckle assem-
bly using a ball joint remover KM 507–B (3).

FRONT SUSPENSION 2C–9
DAEWOO M-150 BL2
D106B507
4. Remove the control arm from the knuckle assembly.

Remove the stud bolt (1).

Separate the control arm from the knuckle assem-
bly (2).
D106B508
5. Remove the brake caliper from the knuckle assembly.
Refer to Section 4D, Front Disc Brakes.
6. Remove the ABS wheel speed sensor from the
knuckle assembly, if applicable. Refer to Section 4F,
Anti–lock Brake System.
7. Remove the steering knuckle assembly from the ve-
hicle.

Remove the strut bracket bolts (1).

Separate the knuckle assembly from the drive
shaft by pulling the steering knuckle assembly (2).
D16B509A
70–90 Nm
50–70 Nm
Installation Procedure
1. Install in the reverse order of removal.
2. Install the steering knuckle assembly in the vehicle
with strut bracket bolts (1).
Tighten
Tighten the strut bracket bolts to 70–90 Nm (52–66
lb-ft).
3. Install the brake caliper from the knuckle assembly.
4. Install the control arm into the knuckle assembly with
the stud bolt (2).
Tighten
Tighten the stud bolt to 50–70 Nm (36–52 lb-ft).
D16B510B
5. Install the tie rod end to the knuckle assembly.
6. Install the tie rod end–to–knuckle castellated nut (1)
and the cotter pin.
Tighten
Tighten the castellated nut to 30–55 Nm (22–41 lb-
ft).
7. Install the caulking nut (2).

Bend the caulking nut flange (3).
Tighten
Tighten the caulking nut to 210 Nm (155 lb-ft).

FRONT SUSPENSION 2C–23
DAEWOO M-150 BL2
SPECIFICATIONS
GENERAL SPECIFICATIONS
Application Unit Description
Suspension Type – Mcpherson (Strut)
Maximum Length mm (in.) 475–481 (18.7–18.94) Shock Absorber Minimum Length mm (in.) 321–327 (12.64–12.87)
Stroke

mm (in.)

154 (6.06)
Stabilizer Shaft Diammeter

mm (in.)

24 (0.94)
Coil Spring Height (No Load) mm (in.) 374 (14.72 )
Grease Type (Front Wheel Bearing and Hub) – M–8143 ANTIF BRG GREASE
FASTENER TIGHTENING SPECIFICATIONS
Application Nm Lb-Ft Lb-In
Strut Assembly–to–Body Nuts 18 – 28 13 – 21 –
Strut Closure Nut 50 – 60 36 – 44 – Strut Assembly–to–Knuckle Bolts 70 – 90 52 – 66 –
Control Arm Mounting Bolt

55 – 70

41 – 52

–
Control Arm Ball Stud Bolt

50 – 70

36 – 52

–
Stabilizer Shaft Castellated Nut 40 – 50 30 – 36 –
Stabilizer Shaft Mounting Bolt 30 – 50 22 – 36 –
Front Under Longitudinal Frame Bolts 10 – 14 – 89 – 124
Front Under Longitudinal Frame Nut 65 – 80 48 – 59 – Drive Axle–to–Hub Caulking Nut 210 155 – Crossmember Bolt 17 – 27 13 – 20 –
Strut Bar Bolts

35 – 55

25 – 41

–
ABS Front Speed Sensor Retaining Bolt 18 – 28 13 – 21 –
Wheel Hub–to–Brake Disc Bolt 55 – 75 41 – 55 –

REAR SUSPENSION 2D–15
DAEWOO M-150 BL2
SPECIFICATIONS
GENERAL SPECIFICATIONS
Application Unit Description
Suspension Type– Isolated Trailing Link
Maximum Lengthmm (in.) 394.5 ± 3 (15.53 ± 0.12)
Shock Absorber Minimum Lengthmm (in.) 257.5 ± 3 (10.14 ± 0.12)

Shock Absorber
Strokemm (in.) 137 (5.39)
Clearancemm (in.) 0
Rear Wheel Bearing No LoadNm (lb-in.) 0.137 – 0.422 (0.9 – 3.7)
Coil Spring Height (No Load)mm (in.) 291 (11.46)
Grease Type (Rear Wheel Bearing and Hub)–M–8143 ANTIF BRG GREASE
FASTENER TIGHTENING SPECIFICATIONS
Application Nm Lb-Ft Lb-In Shock Absorber–to–Body Bracket Nut 45 – 70 33 – 52 – Shock Absorber–to–Rear Axle Bolt 45 – 70 33 – 52 – Trailing Arm–to–Rear Axle Bolt 80 – 90 59 – 66 – Trailing Arm–to–Body Bracket Bolt 70 – 90 55 – 66 – Lateral Rod–to–Body Bracket Bolt 50 – 70 37 – 52 – Lateral Rod–to–Rear Axle Nut 35 – 55 25 – 41 – Rear Axle Castellated Nut* – – – ABS Rear Speed Sensor Retaining Bolt 9 – 13 – 80 – 11 5

Rear Axle Castellated Nut : Refer to Section 4E, Rear Drum Brakes

HYDRAULIC BRAKES 4A–5
DAEWOO M-150 BL2
WARNING LAMP OPERATION
This brake system uses a BRAKE warning lamp located
in the instrument panel cluster. When the ignition switch
is in the III position, the BRAKE warning lamp should
glow and then go OFF when the ignition switch returns
to the II position.The following conditions will activate the BRAKE lamp:

Parking brake applied. The light should be on when-
ever the parking brake is applied and the ignition
switch is II.

Low fluid level. A low fluid level in the master cylinder
will turn the BRAKE lamp ON.
BRAKE SYSTEM FAULT
Condition Probable cause Correction
Brake Warning Lamp ON
Brake fluid leaks.
Repair the leaks or add th fluid.

Parking brake switch shorted to
ground.
Repair the short ground.

Faulty the fluid level sensor.
Replace the sensor.
Stoplamp ON
Faulty the stoplamp switch.
Replace the stoplamp switch.

Push rod length is short.
Adjust the push rod length of the
power booster.

Stoplamp switch circuit shorted to
battery.
Repair or Replace the wiring harness.
Poor Braking
Brake fluid lacks or leaks.
Repair the leaks or add the fluid.

Brake fluid contamination.
Replace the fluid.

Air in the brake system.
Bleed the brake system.

Damaged brake lines.
Replace the brake lines.

Damaged vacuum hose or faulty
check valve.
Replace the vacuum hose or check
value.
Dragging Brake
No free play at the brake pedal.
Adjust the free play.

Weakened the brake pedal return
spring.
Replace the return spring.

Faulty master cylinder.
Replace the master cylinder.

Air in the brake system.
Bleed the brake system.
Pedal Over Stroke
Brake fluid lacks or leaks.
Repair the leaks or add the fluid.

Poor adjustment of the brake pedal
free play.
Adjust the push rod length of the
power booster.

DAEWOO M-150 BL2
SECTION 4B
MASTER CYLINDER
TABLE OF CONTENTS
Description and Operation 4B-2. . . . . . . . . . . . . . . . . .
Master Cylinder 4B-2. . . . . . . . . . . . . . . . . . . . . . . . . . .
Proportioning Valve 4B-2. . . . . . . . . . . . . . . . . . . . . . . .
Fluid Level Sensor 4B-2. . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic Information and Procedures 4B-3. . . . .
Checking the Brake Fluid Level 4B-3. . . . . . . . . . . . . .
Repair Instructions 4B-4. . . . . . . . . . . . . . . . . . . . . . . . .
On-Vehicle Service 4B-4. . . . . . . . . . . . . . . . . . . . . . . . . .
Master Cylinder Assembly 4B-4. . . . . . . . . . . . . . . . . . Brake Fluid Reservoir 4B-5. . . . . . . . . . . . . . . . . . . . . .
Proportioning Valve (For Vehicle With the
Non–ABS Braking System) 4B-5. . . . . . . . . . . . . . .
Brake Fluid Level Switch 4B-6. . . . . . . . . . . . . . . . . . .
Unit Repair 4B-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Master Cylinder 4B-8. . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 4B-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fastener Tightening Specifications 4B-9. . . . . . . . . . .

4B –2 MASTER CYLINDER
DAEWOO M-150 BL2
DESCRIPTION AND OPERATION
MASTER CYLINDER
The master cylinder is designed for use in a direct–split
system. Front right brake and rear left brake are served
by the primary piston. Front left brake and rear right
brake are served by the secondary piston.
The master cylinder incorporates the functions of the
standard dual master cylinder, plus a low fluid level indi-
cator and the proportioning valve in the non–antilock
braking system.
The proportioning valves limit the outlet pressure to the
rear brakes after a predetermined master cylinder has
been reached.
Important:

Replace all the components included in the repair kits
used to service this master cylinder.

Lubricate rubber parts with clean brake fluid to ease
assembly.

Do not use lubricated shop air on brake parts, as this
may damage rubber components.

If any hydraulic component is removed or discon-
nected, it may be necessary to bleed all or part of the
brake system.
The torque values specified are for dry, unlubricated
fasteners.

Perform all service operations on a clean bench, free
from all traces of mineral oil.
PROPORTIONING VALVE
The proportioning valve limits the outlet pressure to the
rear brakes on the non-ABS after a predetermined mas-
ter cylinder pressure has been reached. This is used
when less rear apply force is needed to obtain optimum
braking and is usually found on disc/drum brake configu-
rations. On ABS-equipped vehicles, refer to Section 4F,
Antilock Brake System.
FLUID LEVEL SENSOR
Fluid level sensor is attached at the brake fluid reservoir.
This sensor will activate the BRAKE light if a low fluid
level condition is detected. Once the fluid level is cor-
rected, the BRAKE light will go out.