Hydraulic System Pressure Test
- Disconnect pressure line at line joint. Connect pressure gauge according to manufacturer's instructions. Bleed air from hydraulic system. Check power steering fluid level. With engine at idle, close pressure gauge valve for 2-3 seconds. Note fluid pressure. See HYDRAULIC PRESSURE .HYDRAULIC PRESSURE
Application psi (kg/cm2 ) Paseo & Tercel 850 (60) NOTE: DO NOT keep pressure gauge valve closed longer than 10 seconds. Fluid testing temperature should be 176°F (80°C) or warmer. - Open pressure gauge valve fully. Note pressure with engine at idle and at 3000 RPM. Pressure difference should be less than 71 psi (5 kg/cm2 ). If difference is greater than specified, check flow control valve. If flow control valve is okay, repair or replace power steering pump.
- With steering wheel at full lock position and pressure valve open, again measure pressure. See HYDRAULIC PRESSURE . If pressure is less than specified, steering gear has an internal leak. Repair or replace steering gear.