Pressure Test
NOTE:
For testing, use Power Steering Analyzer (D79L-33610-A
) and adapters.
- Disconnect power steering pump pressure line. Keep line end raised to prevent fluid loss. Connect pressure line on gauge side of power steering analyzer to power steering pump fitting. Connect other line from valve side of power steering analyzer to steering gear inlet.
- Open power steering analyzer gauge valve completely. Start engine. Turn steering wheel fully left and right to raise fluid temperature to 165-175°F (74-79°C). Check fluid level. Add fluid as necessary.
- Close power steering analyzer gauge valve and note fluid pressure. DO NOT close valve for more than 5 seconds. If pressure is not as specified, replace power steering pump. See POWER STEERING SYSTEM PRESSURE table. If pressure is as specified, go to next step.
- Fully open power steering analyzer gauge valve. Turn steering wheel to left and right stops. Record fluid pressure while holding steering wheel against stops. DO NOT hold steering wheel against stops for more than 15 seconds. If pressure is not as specified, repair or replace steering gear assembly as necessary.
POWER STEERING SYSTEM PRESSURE
| Application | psi (kPa) |
|---|---|
| B2300 & B4000 | 1050-1230 (475-558) |
| B3000 | 1300-1480 (590-671) |