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Proportioning Valve

  1. Install 2 pressure gauges that will measure to at least 2000 psi (140.6 kg/cm2 ) to input and output sides of proportioning valve. See Fig 1 .
  2. Measure both input and output pressure with brakes applied. See Fig 2 . If measured pressures are NOT within specification, replace proportioning valve. See PROPORTIONING VALVE TEST SPECIFICATIONS table. DO NOT disassemble proportioning valve.
Fig 1: Testing Proportioning Valve
G96I21202Courtesy of HYUNDAI MOTOR CO.
PROPORTIONING VALVE TEST SPECIFICATIONS

Application Input Pressure psi (kg/cm2 ) Output Pressure psi (kg/cm2 )
Elantra 569 (40) 540-654 (38-46)
1138 (80) 676-775 (47.5-54.5)
1991 (140) 896-1010 (63-71)
Fig 2: Viewing Cut-Away Of Proportioning Valve (Typical)
G91B00034Courtesy of HYUNDAI MOTOR CO.
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