Chrysler neon 1997 Service Manual page 96

PL
DIAGNOSIS AND TESTING (Continued)
BRAKE PROPORTIONING VALVE APPLICATIONS AND PRESSURE SPECIFICATIONS
SALES BRAKE SYSTEM
CODE TYPE
BRA 14" Disc/Drum
BRD 14" Disc/Disc
BRF 14" Disc/Disc W/ABS
BRAKE FLUID CONTAMINATION
Indications of fluid contamination are swollen or
deteriorated rubber parts.
Swollen rubber parts indicate the presence of
petroleum in the brake fluid.
To test for contamination, put a small amount of
drained brake fluid in clear glass jar. If fluid sepa-
rates into layers, there is mineral oil or other fluid
contamination of the brake fluid.
If brake fluid is contaminated, drain and thor-
oughly flush system. Replace master cylinder, propor-
tioning valve, caliper seals, wheel cylinder seals,
Antilock Brakes hydraulic unit and all hydraulic
fluid hoses.
RED BRAKE WARNING LAMP TEST
For diagnosis of specific problems with the red
brake warning lamp system, refer to Brake System
Diagnostics Chart 2, located in the Diagnosis And
Testing section in this group of the service manual.
STOP LAMP SWITCH TEST PROCEDURE
The required procedure for testing the stop lamp
switch is covered in Group 8H, Vehicle Speed Control
System in this service manual. The electrical circuit
tests for stop lamps is covered in Group 8W Rear
Lighting in this service manual.
SERVICE PROCEDURES
BRAKE FLUID LEVEL CHECK
Check master cylinder reservoir brake fluid level a
minimum of twice a year.
Master cylinder reservoirs are marked with the
words FULL AND MIN indicating proper range of
the master cylinder fluid level (Fig. 32).
CAUTION: Use only Mopar
equivalent from a tightly sealed container. Brake
fluid must conform to DOT 3 specifications. Do not
use petroleum-based fluid because seal damage in
the brake system will result.
If necessary, add specified brake fluid bringing
level to the FULL mark on the side of the master
cylinder brake fluid reservoir (Fig. 32).
SPLIT
SLOPE
POINT
400 psi 0.43
400 psi 0.34
400 psi 0.34
brake fluid or an
IDENTIFICATION
Black Band
Bar Code Band
Bar Code Band
Fig. 32 Master Cylinder Fluid Level
BRAKE BLEEDING
NOTE: For bleeding the ABS hydraulic system, see
Bleeding ABX-4 Brake System in the Service Proce-
dures Section of the ABS Brake Section in this
group of the service manual.
CAUTION: Before removing the master cylinder
cover, wipe it clean to prevent dirt and other foreign
matter from dropping into the master cylinder.
PRESSURE BLEEDING
CAUTION: Use bleeder tank Special Tool C-3496-B
with required adapter for the master cylinder reser-
voir to pressurize the hydraulic system for bleed-
ing.
NOTE: Follow pressure
instructions for use of pressure bleeding equip-
ment.
When bleeding the brake system, some air may be
trapped in the brake lines or valves far upstream, as
much as ten feet from the bleeder screw (Fig. 33).
Therefore, it is essential to have a fast flow of a large
volume of brake fluid when bleeding the brakes to
ensure all the air gets out.
The following wheel sequence for bleeding the
brake hydraulic system should be used to ensure
BRAKES 5 - 19
INLET OUTLET
PRESSURE PRESSURE
1000 psi 600-700 psi
1000 psi 550-650 psi
1000 psi 550-650 psi
bleeder manufacturer's