Suzuki XL7 2007 Service Manual page 1786

6C-4 Power Assisted Steering System:
Step
1. Allow the engine to run until the engine reaches full
operating temperature.
2. Record the pressure reading and flow reading.
3. Partially close the J 44721 valve until the system
pressure reaches the specified value, then record
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the FLOW reading.
4. Subtract second flow reading from the first flow
reading.
Is the flow DECREASE greater than 3.8 L (1 gal) per
minute?
NOTE
Do not leave the valve closed for more than
5 seconds, or internal pump damage could
accrue.
Fully close then open the J 44721 valve 3 times. Record
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all of the high pressure readings. Refer to "Power
Steering Pump Specifications" for power steering
system pressure relief specifications.
Are the three high pressure readings within
specifications?
Are the three high pressure readings within 245 kPa (50
9
psi) of each other?
1. Increase the engine speed to approximately 1500
RPM.
2. Record the flow reading. Refer to "Power Steering
10
Pump Specifications" for power steering system
pressure specifications.
Is the actual flow reading within specifications?
Is the difference between the actual flow reading and
11 the maximum flow specification more than 3.8 L (1 gal)
per minute?
Turn the steering wheel from steering stop to steering
12 stop and record the FLOW readings at each stop.
Is the flow LOWER than 3.8 L (1 gal) per minute?
Replace the power steering pump. Refer to "Power
13 Steering Pump Replacement".
Did you complete the replacement?
Inspect the flow control valve and bore.
If any burrs or scratches are noticed on the flow control
valve, replace the power steering pump. Do NOT
14
attempt to clean the flow control valve. Refer to "Power
Steering Pump Replacement".
Did you complete the repair?
Replace the power steering pump. Refer to "Power
15 Steering Pump Replacement".
Did you complete the replacement?
1. Remove the power steering pump flow control valve
and inspect for any wear or damage. Do NOT
disassemble the flow control valve.
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2. If the flow control valve is worn damaged, replace
the power steering pump. Refer to "Power Steering
Pump Replacement".
Did you complete the repair?
Action Value(s) Yes
4827 kPa
Go to Step 13
(700 psi)
— Go to Step 9
— Go to Step 10
— Go to Step 11
— Go to Step 16
— Go to Step 18
— Go to Step 18
— Go to Step 18
— Go to Step 18
— Go to Step 18
No
Go to Step 8
Go to Step 15
Go to Step 14
Go to Step 13
Go to Step 12
Go to Step 17
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