Power Steering Pump Diagnosis
FOAMING OR MILKY POWER STEERING FLUID (AIR IN FLUID)
| Checks | Action |
|---|---|
| Check for internal leakage in the power steering pump, causing an overflow. | Repair the internal pump leakage. Bleed the system. |
| Check for a low fluid level. | Repair the internal pump leakage. Bleed the system. Cold temperatures will cause the air bubbles in the system if the fluid level is low. |
LOW PRESSURE DUE TO POWER STEERING PUMP
| Checks | Action |
|---|---|
| Check for an external leakage of the power steering pump at the seals. | Replace the seals. Repair the leak. Bleed the system. |
| Check for a worn serpentine accessory drive belt. | Replace the serpentine accessory drive belt. |
LOW PRESSURE DUE TO POWER STEERING GEAR
| Checks | Action |
|---|---|
| Check for a scored housing bore. | Replace the housing bore. |
| Check for leakage at the valve rings or the seals. | Repair the leak. Bleed the system. |
GROANING NOISE IN THE POWER STEERING PUMP
| Checks | Action |
|---|---|
| Check for air in the power steering fluid. | Perform the checks listed in "Foaming or Milky Power Steering Fluid (Air in Fluid)". |
| Check for a low level of power steering fluid. | Repair any internal or external leaks. Bleed the system. |
| Check for a loose mounting of the power steering pump. | Tighten the pump mounting to specifications. |