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Home >> Chrysler >> 1999 >> Sebring JXi >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Disc Brakes & Drum Brakes- Except SEBRING Coupe >> Testing >> Proportioning Valve >> Removal & Installation

Removal & Installation

  1. Rear wheel lock-up or skidding indicates faulty proportioning valve. See PROPORTIONING VALVE IDENTIFICATION  table. Road test vehicle to determine which rear brake system is faulty.
  2. Remove brakeline from suspect proportioning valve. See Fig 1. Remove proportioning valve from master cylinder. For 1999 Sebring Convertible, install Pressure Test Fitting (8187 or 8187-2), or for all other models, install Pressure Test Fitting (6805-1 or 6805-2), into master cylinder outlet port. Install proportioning valve into pressure test fitting.
  3. Install 1999 Sebring Convertible Pressure Test Fitting (8187), or Pressure Test Fitting (6805-3 or 6805-4) for all other models, into proportioning valve. Connect brakeline to pressure test fitting. Install Pressure Gauge (C-4007-A) into each pressure test fitting. See Fig 2.
  4. Bleed hoses and gauges. Have an assistant depress and hold pressure on brake pedal. Note and record pressure gauge readings. If inlet or outlet pressure readings do not agree with specifications, replace proportioning valve. See BRAKE PRESSURE  table.
Fig 1: Locating Brake Proportioning Valve (Neon Shown; Sebring Convertible Is Similar)
G95D13378Courtesy of CHRYSLER CORP.
Fig 2: Connecting Pressure Test Fittings (Neon Shown; Sebring Convertible Is Similar)
G95E13379Courtesy of CHRYSLER CORP.
PROPORTIONING VALVE IDENTIFICATION

Application (1)Split/Slope Identification
Disc/Drum
Neon 400 psi/.43 Black Band
Sebring Convertible 600 psi/.59 Bar Code
Disc/Disc
Neon
With ABS 300 psi/.34 Bar Code
Without ABS 400 psi/.34 Bar Code
Sebring Convertible 500 psi/.43 Bar Code
(1) Split point is when proportioning valve changes rear brake pressure to prevent skidding. Slope is the pressure differential (percentage ratio) between front and rear brakes.
BRAKE PRESSURE

Application Inlet Pressure (1) Split/Slope Rear Brake Outlet Pressure
Disc/Drum (Without ABS)
Neon 1000 psi 400 psi/.43 600-700 psi
Sebring Convertible 1000 psi 600 psi/.59 800-900 psi
Disc/Drum (With ABS)
Sebring Convertible 1000 psi 600 psi/.59 800-900 psi
Disc/Disc (Without ABS)
Neon 1000 psi 400 psi/.34 550-650 psi
Disc/Disc (With ABS)
Neon 1000 psi 300 psi/.34 550-650 psi
Sebring Convertible 1000 psi 500 psi/.43 600-700 psi
(1) Split point is when proportioning valve changes rear brake pressure to prevent skidding. Slope is the pressure differential (percentage ratio) between front and rear brakes.