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Relief Pressure Test

    CAUTION: DO NOT leave shutoff valve closed more than 5 seconds, or pump damage could result.
  1. Close gauge shutoff valve completely 3 times. Record highest pressure attained each time. All 3 readings must be greater than specifications and within 50 psi (3.5 kg/cm2 ) of each other. See POWER STEERING PUMP PRESSURE TEST SPECIFICATIONS  table. If pressures are not as specified, replace pump. See POWER STEERING PUMP (GASOLINE)  or VACUUM/POWER STEERING PUMP (DIESEL)  under REMOVAL & INSTALLATION.
    2. CAUTION: DO NOT hold steering wheel against stops more than 4 seconds, or pump damage may result.
  2. Open test valve and turn steering wheel to left and right stops. Record highest pressure attained at each stop. If output pressures are not equal against each stop, gear is leaking internally and must be replaced. See STEERING GEAR  under REMOVAL & INSTALLATION. Shut off engine, remove test gauge, and connect pressure hose.
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