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Home >> GMC >> 1983 >> Forward Control 7.4 W, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 3 (Power Steering General Servicing) >> Testing >> Pressure Test
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Pressure Test

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 1983 Plymouth Voyager, 1983 Dodge Ramcharger, 1983 Dodge Ram Wagon, 1983 Dodge Ram Van, and 1983 Dodge Pickup. However, it is still accessible from the selected car via links, so may be relevant.
  1. With belt tension correct, disconnect power steering pump pressure hose, keeping hose end raised to prevent fluid loss. Connect pressure hose of gauge to power steering pump fitting and connect second hose from valve side of tester to steering gear inlet.
  2. Open valve and run engine until fluid reaches normal operating temperature of 170°F (77°C). Check fluid level and add if necessary.
  3. On Chrysler vehicles, idle engine at 600-800 RPM and with valve open, note pressure while turning wheels from side-to-side to stops. DO NOT hold wheel against stops for more than 5 seconds. A pressure of at least 900 psi (63 kg/cm2 ) should be read.
  4. If pressure is low, system is not operating properly. Momentarily close valve and note pressure. If pressure is less than 900 psi (63 kg/cm2 ), pump is faulty. If pressure is 900 psi (63 kg/cm2 ) but was low at previous reading, steering gear is at fault.
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