POWER STEERING FLUID
CONDITION POSSIBLE CAUSES CORRECTION
LOW FLUID LEVEL WITH
VISIBLE LEAK.
1. Loose power steering hose
fittings.
1. Tighten the fitting to its specified torque.
2. Damaged or missing fitting seal,
gasket, or O-ring.
2. Replace as necessary.
3. Power steering fluid cooler
leaking.
3. Replace power steering fluid cooler.
4. Power steering pump or power
steering gear leaking.
4. Repair or replace the leaking component
as required.
AERATED FLUID. 1. Low fluid level.* 1. Fill power steering fluid reservoir to
proper level.
2. Air leak between power steering
fluid reservoir and pump.
2. Inspect for proper sealing. Replace the
power steering pump (with reservoir).
3. Cracked power steering pump
housing.
3. Replace the power steering pump.
RESERVOIR FLUID
OVERFLOW AND FLUID
THAT IS MILKY IN COLOR
1. Water contamination. 1. Drain the power steering fluid from the
system. Flush the system with fresh clean
power steering fluid, drain, then refill to the
proper level.
*NOTE: Extremely cold temperatures may cause power steering fluid aeration if the power steering fluid
level is low.
POWER STEERING SYSTEM FLOW AND
PRESSURE TEST
ALL ENGINES
The following procedure is to be used to test the
operation of the power steering system on this vehi-
cle. This test will provide the flow rate of the power
steering pump along with the maximum relief pres-
sure. This test is to be performed any time a power
steering system problem is present to determine if
the power steering pump or power steering gear is
not functioning properly. The following flow and pres-
sure test is performed using the Power Steering Ana-
lyzer Kit, Special Tool 6815 (Fig. 2), hoses, Special
Tools 6905 and 6959, and fittings from adapter kit,
Special Tool 6893.
Fig. 2 Power Steering Analyzer With Hoses Installed
1 – OUTLET
2 – SPECIAL TOOL 6815
3 – INLET
19 - 8 STEERING LH
DIAGNOSIS AND TESTING (Continued)
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