Proportioning Valve Specifications - Chrysler Sebring 2004 Service Manual

JR
PROPORTIONING VALVE (Continued)
Fig. 53 Junction Block Fitting Identification
1 - FROM MASTER CYLINDER PRIMARY
2 - FROM MASTER CYLINDER SECONDARY
3 - TO LEFT FRONT BRAKE
4 - TO RIGHT REAR BRAKE
5 - TO LEFT REAR BRAKE
6 - TO RIGHT FRONT BRAKE
(4) Connect previously removed brake tube to
Adapter.
(5) Install Pressure Gauge, Special Tool C-4007-A,
to the Adapter.
(6) Tighten all tube nut fittings to 17 N·m (145 in.
lbs.) torque.
(7) Remove the chassis brake tube leading to
either the left rear or right rear brake at the junction
block (Fig. 53).
(8) If the left rear proportioning valve is suspect,
install appropriate Adapter, Special Tool 6833, in the
open port for the left rear chassis tube.
(9) If the right rear proportioning valve is suspect,
instal appropriate Adapter, Special Tool 6833, in the
open port for the right rear chassis tube.
Vehicle
JR27
JR41
JR41
* NOTE: Inlet and outlet pressures listed are
approximations and actual results may differ. Pres-
sures listed should be used as guidelines only.

PROPORTIONING VALVE SPECIFICATIONS

Brake System
Split Point
Type
Disc/Disc
Disc/Drum
Disc/Disc
(10) Connect previously removed brake tube to
Adapter.
(11) Install Pressure Gauge, Special Tool C-4007-A,
to the Adapter.
(12) Tighten all tube nut fittings to 17 N·m (145
in. lbs.) torque.
(13) Bleed any air out of the system. This includes
bleeding the air from the hose between the pressure
test fitting and pressure gauge, which is done at the
pressure gauge.
(14) With the aid of a helper, apply pressure to the
brake pedal until reading on proportioning valve
inlet gauge (at master cylinder) is at the pressure
shown on the chart at the end of this procedure.
Then check the pressure reading on the proportion-
ing valve outlet gauge (at junction block outlet to
rear brake). If proportioning valve outlet pressure
does not agree with value shown on the chart (once
inlet pressure shown on chart is obtained), replace
the junction block (with internal proportioning
valves) (Refer to 5 - BRAKES - BASE/HYDRAULIC/
MECHANICAL/JUNCTION BLOCK - REMOVAL). If
pressure is within specifications, do not replace pro-
portioning valve and perform the following steps.
(15) Remove the Pressure Gauges and Adapters
from the junction block.
(16) Reinstall the brake tubes to the junction block
ports. Tighten tube nuts fitting to 17 N·m (145 in.
lbs.) torque.
(17) Bleed the affected brake lines. (Refer to 5 -
BRAKES - BASE - STANDARD PROCEDURE)
(18) If no problem is found with the proportioning
valves, check the rear wheel brake shoe linings for
contamination or for replacement brake shoes not
meeting OEM brake lining material specifications.
These conditions can also cause premature rear
wheel skid.
Slope
400 psi 0.27
400 psi 0.34
350 psi 0.27
NOTE: DaimlerChrysler reserves the right to change
values of proportioning valves used.
BRAKES - BASE
Inlet Outlet
Pressure* Pressure*
1000 psi 510-610 psi
1000 psi 550-650 psi
1000 psi 525-625 psi
5 - 31