(4) 2.7L engine — Connect Adapter Fitting, Spe-
cial Tool 6844 (Fig. 6), attached to pressure hose from
inlet (gauge end) of Power Steering Analyzer to the
pressure fitting on the power steering pump.
(5) 3.2L or 3.5L engine — Connect Adapter Fit-
ting, Special Tool 6825, attached to pressure hose
from inlet (gauge end) of Power Steering Analyzer to
the pressure fitting on the power steering pump (Fig.
7).
(6) Connect vehicle power steering fluid pressure
hose to Adapter Fitting, Special Tool 6826, which
should be already installed in the outlet hose (valve
end) of Power Steering Analyzer.
(7) Completely open valve on Power Steering Ana-
lyzer.
(8) Start engine and let idle long enough to circu-
late power steering fluid through the analyzer and
hoses, until the air is out of the fluid. Shut off
engine.
(9) Check power steering fluid level and add fluid
as necessary. Start engine again and let idle.
(10) Gauge should read below 862 kPa (125 psi), if
above, inspect the hoses for restrictions and repair as
necessary. The initial pressure should be in the range
of 345-862 kPa (50-125 psi).
CAUTION: The following test procedure involves
testing maximum pump pressure output and flow
control valve operation. Do not leave valve closed
for more than five seconds as the pump could be
damaged.
(11) Close valve fully three times and record high-
est pressure indicated each time. All three read-
ings must be above specifications and within
345 kPa (50 psi) of each other.
NOTE: Power steering pump maximum relief pres-
sure is 8275 to 8975 kPa (1250 to 1350 psi.).
• Power steering pump pressures above specifica-
tions but not within 345 kPa (50 psi) of each other,
replace pump.
• Pressures within 345 kPa (50 psi) of each other
but below specifications, replace pump.
CAUTION: Do not force the pump to operate
against the stops for more than 2 to 4 seconds at a
time because, pump damage will result.
(12) Completely open the valve on the Power
Steering Analyzer. Turn the steering wheel to the
extreme left until the stop in the steering gear is
met, then turn the steering wheel to the right until
the right stop is met. Record the highest indicated
pressure at each position. Compare the recorded
readings to the specifications. If the highest output
pressures are not the same against either stop, the
steering gear is leaking internally and must be
replaced.
Fig. 6 Analyzer Connected To Power Steering Pump
(2.7L Engine)
1 – POWER STEERING FLUID PRESSURE HOSE
Fig. 7 Analyzer Connected To Power Steering Pump
(3.2L/3.5L Engine)
1 – POWER STEERING PRESSURE HOSE
2 – POWER STEERING PUMP
19 - 10 STEERING LH
DIAGNOSIS AND TESTING (Continued)
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