Chrysler 1997 Stratus Convertible RHD Service Manual page 924

FLOW CONTROL VALVE FIT- POWER STEERING PRES- POWER STEERING PUMP SURE HOSE ADAPTER TING TINGS FIT-
19 - 10 STEERING
DIAGNOSIS AND TESTING (Continued)
flow test is performed using Pressure/Flow Tester,
Special Tool 6815 (Fig. 3).
Fig. 3 Power Steering Pump Flow/Pressure Tester
POWER STEERING PUMP FLOW AND
PRESSURE TEST PROCEDURE
(1) Check power steering pump drive belt tension
and adjust as necessary.
(2) Disconnect power steering fluid pressure hose
(Fig. 4), at power steering pump. Use a container for
dripping fluid.
Fig. 4 Power Steering Pump Pressure Hose
(3) Connect the inlet hose on the Pressure Gauge,
Special Tool 6815 using required adapter, Special
Tool 6972 to the pressure fitting on the power steer-
ing pump. Connect the pressure hose which was
removed from the power steering pump, using
required adapter fitting, to the outlet port of Pres-
sure Gauge, Special Tool 6815. Pressure Gauge,
Special Tool 6815 is to be installed in series
with power steering pressure hose, between
power steering pump and steering gear. It must
also be installed so it is in correct direction of
the fluid flow.
(4) Completely open valve on Special Tool 6815.
SPECIAL TOOL 6815
(5) Start engine and let idle long enough to circu-
late power steering fluid through flow/pressure test
and get air out of fluid. Then shut off engine.
(6) Check power steering fluid level, and add fluid
as necessary. Start engine again and let idle.
(7) Pressure gauge should read below 862 kPa
(125 psi). If above, inspect the hoses for restrictions
and repair as necessary. The initial pressure reading
should be in the range of 345-552 kPa (50-80 psi).
The flow meter reading should be between 4.9 and
5.3 liters per minute (1.3 and 1.4 GPM).
CAUTION: The following test procedure involves
testing power steering pump maximum pressure
output and flow control valve operation. Do not
leave valve closed for more than 5 seconds as the
pump could be damaged.
(8) 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 8240 to 8920 kPa (1195 to 1293 psi.).
• If power steering pump pressures are above
specifications, but not within 345 kPa (50 psi) of each
other, then replace power steering pump.
• If pressures are within 345 kPa (50 psi) of each
other but below specifications, then replace power
steering pump.
CAUTION: Do not force the pump to operate
against the stops for more than 5 seconds at a time
because pump damage will result.
(9) Open test valve. Turn steering wheel to the
extreme left and right positions until against the
stops, recording the highest indicated pressure at
each position. Compare pressure gauge readings to
power steering pump specifications. If the highest
output pressures are not the same against either
stop, the steering gear is leaking internally and must
be replaced.
SERVICE PROCEDURES
POWER STEERING SYSTEM FLUID LEVEL CHECK
WARNING: FLUID LEVEL SHOULD BE CHECKED
WITH ENGINE OFF TO PREVENT INJURY FROM
MOVING PARTS. DO NOT USE AUTOMATIC TRANS-
MISSION FLUID IN THE POWER STEERING SYS-
TEM. DO NOT OVERFILL THE POWER STEERING
SYSTEM.
JX