Fluid Pressure
CAUTION:
DO NOT
leave valve on pressure gauge closed more than 10 seconds or damage to oil pump will result.
- Disconnect pressure hose from oil pump. See Fig 1 . Bleed air from system. See HYDRAULIC SYSTEM BLEEDING in this article. Start engine and let it idle. Turn steering wheel several times until temperature reaches 122°F (50°C). Set engine idle speed to 1000 RPM.
- Close and open valve to measure oil pump pressure. If not within specifications, replace the power steering pump. Refer to the OIL PUMP PRESSURE SPECIFICATIONS table. Install pressure hose. Bleed system.
OIL PUMP PRESSURE SPECIFICATIONS
| Application | psi (kg/cm2 ) | ||
|---|---|---|---|
| Colt, Colt Wagon | |||
| Valve Closed | 780-880 (55-62) | ||
| Valve Open (Maximum) | 142 (10) | ||
| Colt Vista | |||
| Valve Closed | |||
| 2WD | 780-880 (55-62) | ||
| 4WD | 920-1000 (65-72) | ||
| Valve Open (Maximum) | 142 (10) | ||