Idle Pressure Test
- Remove high pressure hose at steering pump and connect a spare hose to pump fitting. Connect opposite end of spare hose to Pressure Test Gauge (C-3309E). Connect pressure hose from valve side of steering gear to valve side of gauge. Valve must be installed on outlet side of gauge. See Fig 1.
- Fully open shutoff valve on test gauge. With a thermometer in fluid reservoir, start engine and warm fluid to 150-170°F (66-77°C). Turning wheels from stop-to-stop will aid in warming fluid. DO NOT hold wheels against stop.
- With engine at idle and gauge valve open, check initial pressure. See POWER STEERING PUMP PRESSURE TEST SPECIFICATIONS table. If pressure is greater than 125 psi (8.8 kg/cm2 ), check for restricted hoses or crimped lines.
POWER STEERING PUMP PRESSURE TEST SPECIFICATIONS
| Application | psi (kg/cm2 ) | |
|---|---|---|
| Idle Pressure | 50-80 (3.5-5.6) | |
| Relief Pressure | ||
| Dakota & Durango (4WD) | 1450 (101.9) | |
| Ram Pickup | 1450 (101.9) | |
| Ram Van & Ram Wagon | 1400 (98.4) | |