FixVault

Fluid Pressure

CAUTION: DO NOT leave valve on pressure gauge closed more than 10 seconds or damage to oil pump will result.
  1. Disconnect pressure hose from oil pump. See Fig 1 . Bleed air from system. See HYDRAULIC SYSTEM BLEEDING  in this article. Start engine and let it idle. Turn steering wheel several times until temperature reaches 122°F (50°C). Set engine idle speed to 1000 RPM.
  2. Close and open valve to measure oil pump pressure. If not within specifications, replace pump. See OIL PUMP PRESSURE SPECIFICATIONS  . Install pressure hose. Bleed system.
OIL PUMP PRESSURE SPECIFICATIONS

Application psi (kg/cm2 )
Mirage
Valve Closed 780-880 (55-62)
Valve Open (Maximum) 142 (10)
Galant, Sigma & Van/Wagon
Valve Closed 1067-1166 (75-82)
Valve Open 114-142 (8-10)
Precis
Valve Closed 640-740 (46-53)
Valve Open 142 (10) or less
Fig 1: Pressure Gauge & Shut-Off Valve Connections
G52831Courtesy of CHRYSLER MOTORS.