Pump Pressure Test
- Install a 0-1450 psi (0-102 kg/cm2 ) pressure gauge in line between power steering pump and piston rotary valve. Gauge must be equipped with a cutoff valve.
- With engine running at idle, close cutoff valve and read gauge pressure.CAUTION: Do not close valve for longer than five seconds or excessive heat buildup in pump will occur.
Pressure reading on gauge must be 540-1166 psi (38-82 kg/cm2 ). If outside range, check operation of pressure and flow control valve. Repair or replace valve as required. If pressure is still too low, replace pump.