Suzuki XL7 2007 Service Manual page 389

Step
Check the vehicle to determine if the disturbance is now
significantly reduced or eliminated. Perform the following
steps:
1. Install a scan tool into the customer's vehicle.
2. Install the J 38792-A, if available, into the customer's
vehicle; place the sensor in exactly the same location as it
was originally placed in the vehicle.
3. Block the front wheels.
4. Apply BOTH the service brakes and the park brake.
5. Start the engine.
6. Place the transmission in NEUTRAL or PARK.
7. Slowly increase the engine RPM to the level at which the
disturbance was most noticeable.
13 8. Record the engine RPM obtained on the scan tool and the
most dominant frequency reading if obtained on the J
38792-A, if available.
9. Place the transmission in DRIVE.
10. Slowly increase the engine RPM to the level at which the
disturbance was most noticeable.
11. Record the engine RPM obtained on the scan tool and the
most dominant frequency reading if obtained on the J
38792-A, if available.
12. If the disturbance has been significantly reduced or
eliminated, confirm the results by placing the transmission
into REVERSE, then repeat steps 10 and 11. Reverse-
loading of the powertrain may increase or change the
characteristics of the vibration.
Has the disturbance been significantly reduced or eliminated?
Have you investigated powertrain isolation as a possible
14
cause of the disturbance?
Have you investigated engine driven accessories as a
15 possible cause of the disturbance?
Is the J 38792-A available?
16
Replace the engine driven accessory component causing the
17 disturbance.
Did you complete the replacement?
1. Install or connect any components that were removed or
disconnected during diagnosis.
18
2. Perform the Vibration Analysis - Road Testing table. Refer
to "Vibration Analysis - Road Testing: ".
Is the disturbance still present?
Action
Engine Mechanical:
Yes
Go to Step 18 Go to Step 14
Go to Step 15
Go to "Vibration
Analysis - Engine Go to Step 16
Balance"
Go to "Vibration
Go to Step 8
Diagnostic Aids: "
Go to Step 18
Go to Step 2
1D-49
No
Go to Step 5
—
System OK