1991 MITSUBISHI ECLIPSE Brake hose

5-38BRAKES - Anti-lock Braking System Troubleshooting
E-5Abnormality of solenoid valve drive circuit
[Explanation]*>The ABS ECU normally monitors the solenoid valve
when turned OFF, the ECU determines the solenoid%’ -’drive circuit.coil wire is broken/short circuited or the harness is
If no current flows in the solenoid even if the ECUbroken/short circuited and then the warning light
turns the solenoid ON or if it continues to flow evenlights up.
IGNITIONSWITCH(IGI)
7JIB------_-_tor and check with the
side connector.
Connect HU
1OP connec-
disconnect ECU con-
>Is the solenoid valve resis-
tance value within the range
of the standard values when
measured at the ECU con-
nector?Standard value:
3.0-3.2 Q
Yes1
II
I
Solenoid valve drive circuit isnormal.I
NoReplace HU.I
NoIs the resistance value for
the solenoid valve within the
range ofthe standard
values?Standard value:
3.0-3.2 Q, IYes ,
1
JThe harness wire for the
solenoidvalvecircuit
whose resistance value is
outside the range of the
standard value is broken
or short circuited.,-‘he-
-Repair

BRAKES - Service Adjustment Procedures5-43When engine is
stoppedNo good
0
wtwo061
VV;Videngine is
t4uoo60
Caution
If the number of brake lever notches engaged is less
than the standard value, the cable has been pulledexcessively, and failure of the automatic adjuster
mechanism will result. Be sure tti adjust it to within the
standard value.(6) After making the adjustment, check to be sure that there is
no play between the adjusting nut and the pin. Also check
to be sure that the adjusting nut is securely held at the nut
holder.(7) After adjusting the lever stroke, jack up the rear of the
vehicle.(8) With the parking brake lever in the released position, turn
the rear wheel to confirm that the rear brakes are not
dragging.
PARKING BRAKE SWITCH CHECKN05FDAB
(1) Disconnect the connector of the parking brake switch, and
connect an ohmmeter to the parking brake switch and the
switch installation bolt.
(2) The parking brake switch is good if there is continuity whenthe parking brake lever is pulled and there is no continuity
when it is returned.
BRAKE BOOSTER OPERATING
lNSPECTIONNoSFcuFor simple checking of brake booster operation, carry out the
following tests.
(1) Run the engine for one or two minutes, and then stop it.
(2) Step on the brake pedal several times with normal
pressure.If the pedal depressed fully the first time. but gradually
becomes higher when depressed succeeding times, the
booster is operating properly.
If the pedal height remains unchanged, the booster is
faulty.(3) With the engine stopped, step on the brake pedal several
times with the same pressure to make sure that the pedal
height will not change.
Then step on the brake pedal and start the engine.
If the pedal moves downward slightly, the booster is in
good condition. If there is no change, the booster is faulty.
(4) With the engine running, step on the brake pedal and then
stop the engine.
Hold the pedal depressed for 30 seconds. If the pedal
height does not change, the booster is in good condition.
If the pedal rises, the booster is faulty.
If the above three tests are okay, the booster performance canbe determined as good.
If one of the above three tests is not okay at last, the check
valve, vacuum hose, or booster will be faulty.

BRAKES - Service Adjustment Procedures
WA041 7
Pressure
gaugePressure
PropG-tioning valve t4Lmt
,’
,Sdit point
outputpressure
Input pressure
14uoo55CHECK VALVE OPERATION CHECK
NOSFNAJ
When checking the check valve, keep the check valve fit in thevacuum hose.
1. Remove the vacuum hose.
Caution
The check valve is press-fit inside the vacuum hose and
do not remove the check valve from the vacuum hose.
2.Check the operation of the check valve by using a vacuum
pump.Vacuum pump connection Accept/reject criteria
Connection at the brake A negative pressure (vacuum) is
booster side
@Icreated and held.
Connection at the intake
manifold side
@A negative pressure (vacuum) is notcreated.
Caution
If the check valve is defective, replace it as an assembly
unit together with the vacuum hose.PROPORTIONING VALVE FUNCTION TEST
NOSFKAJ
1.Connect two pressure gauges, one each to the input side
and output side of the proportioning valve, as shown.
2. Air bleed the brake line and the pressure gauge.
3. While gradually depressing the brake pedal, make the
following measurements and check to be sure that the
measured values are within the allowable range.
(1) Output pressure begins to drop relative to input
pressure (split point).
Standard value:3.95-4.45
MPa (561-633 psi)3.45-3.95
MPa (491-561 psi)
(2) Output fluid pressure when input fluid pressure are as
follows.
Standard value:
tFVVD>5.15-5.65 MPa (732-804 psi)
[at 8.2
MPa (1,163 psi)]4.65-5.15
MPa (661-732 psi)
[at 7.7
MPa (1,095 psi)],
(3) Output pressure difference between left and right
brake lines
Limit: 0.4
MPa (57 psi)
4. If the measured pressures are not within the
permissibleranges, replace the proportioning valve.

5-50BRAKES - Service Adiustment Procedures
14A.0067
MAO409-
REAR BRAKE DISC RUN-OUT CHECKNOSWAB
1.Remove the caliper support, raise the caliper assembly, and Ir.secure it by using a wire, etc.
-u/2. Place a dial gauge approximately 5 mm
(2 in.) from the
outer circumference of the brake disc, and measure the
run-out of the disc.
Limit: 0.08 mm
(.0031 in.)
NOTETo secure the disc to the hub, tighten the nuts.
REAR BRAKE DISC RUN-OUT CORRECTIONNWFXAA
1.If the run-out of the brake disc is equivalent to or exceeds
the limit specification, change the phase of the disc and
hub, and then measure the run-out again.
rc
NOTEThe procedures for checking by changing the installation
phase of the disc are the same as those for the front brakediscs. (Refer to
P.5-48.)
2.If the problem cannot be corrected by changing the phase
of the brake disc, replace the disc.

5-56BRAKES -Master Cylinder
MASTER CYLINDERREMOVAL AND INSTALLATION
Pre-removal Operation
l Draining of Brake FluidPost-installation Operationl supplying Brake Fluidl Bleeding(Refer to P.5-45.1l Adjustment of Brake Pedal(Refer to P.5-41.)
Removal steps
/8-12 Nm
6-S Mbs.
14A02491. Fluid level sensor connector
2. Brake tubes
3. Reservoir hoses
4. Master cylinder
5. Reservoir
6. Bracket
NOTE
l 4Adjustment of clearance between brake(I) Reverse the removal procedures to reinstall.
booster push rod and primary piston(2) l + : Refer to “Service Points of Installation”.
14110053SERVICE POINTS OF INSTALLATIONNWlDAOa
. ADJUSTMENT OF CLEARANCE BETWEEN BRAKE
BOOSTER PUSH ‘ROD AND PRIMARY PISTONAdjust the clearance (A) between the brake booster push
rod and primary piston as follows:
m
J

5-60BRAKES - Brake Booster
BRAKE BOOSTER
REMOVAL AND INSTALLATION
IPre-removal Operationl Drainino of Brake FluidI6
Removal steps
1. Relay box (for air conditioner)
2. Solenoid valve assembly
3. Brake fluid level sensor connector4. Brake tube
5. Master cylinder, hose, reservoir assembly
+I) e+6. Vacuum hoses with check valve+a 7. Fitting
8. Cotter pin
I)4 9. WasherI)4 10. Clevis pin11. Fuel return tube installation bolt
12. Brake tube installation bolt
13. Brake booster
14. Sealer
MA0392
NOTE(1) Reverse the removal procedures to reinstall.(2) ** : Refer to “Service Points of Removal”.(3) l * : Refer to “Service Points of Installation”.(4) m : Non-reusable parts

BRAKES - Brake Booster5-61Vacuum hose
MAO394
14uoo50
14Y626Vacuum hose
mm (in.)
14A0395
SERVICE POINTS OF REMOVALNow9Al
6. REMOVAL OF VACUUM HOSE WITH CHECK VALVE
NOTE
Since the check valve is fit to the vacuum hose, replace thecheck valve as an assembly unit together with the vacuum
hose if the check valve is defective.
SERVICE POINTS OF INSTALLATIONNOWDAV
10. APPLICATION OF GREASE TO CLEVIS PIN/g. WASHERAfter applying the specified grease to the
clevis pin and
washer, insert the clevis pin and bend the cotter pin tightly.
Grease: MOPAR Multi-mileage Lubricant
Part No. 2525035 or equivalent
7. APPLICATION OF SEALANT TO
FITTINGWhen installing the vacuum hose fitting, apply semi-drying
sealant to its threaded portion.
6. INSTALLATION OF VACUUM HOSE WITH CHECK
VALVE(1) Attach the vacuum hose so that it may be inserted to a
dimension illustrated.
Caution
Prevent interference between the check valve and
brake booster.(2) The vacuum hose at the engine should be securely
connected until it contacts the hexagonal edge of the
fitting, and then should be secured by the hose clip.

5-62BRAKES - Brake Line
BRAKE LINEREMOVAL AND INSTALLATIONr/ehicles without ABS
Pre-removal Operation
eDraining of Brake Fluid6
/
NOSKA-
>/Flared brake line nuts
13-17 Nm
9-12 ft.lbs.I
14FO3825-35 Nm
/ 18-25 ftlbs.17-26 Nm
12-19 ft.lb!
5.25-35 Nm
18-25 ftlbs.12-19
ft.lbs.
1. Front brake hose2. Strut brake tube
3. Front brake tube
(R.H.)4. Front brake tube (L.H.)5. Brake tube (A)6. Brake tube (9)11. Main brake tube (R.H.)12. Main brake tube (L.H.)13. Proportioning valve
14. Rear brake hose
15. Rear axle brake tube
16.BracketMAO583