Suzuki XL7 2007 Service Manual page 387

Step
1. Mark the face of the suspected accessory pulleys,
including any related idler pulleys, near the outer edge
with a paint mark.
2. Install the J 38792-25, Inductive Pickup Timing Light to the
J 38792-A.
For information on the use of the EVA features, refer to
"Electronic Vibration Analyzer (EVA) Description and
Operation: ".
3. Block the front wheels.
4. Apply BOTH the service brakes and the park brake.
5. With the scan tool and the J 38792-A, still installed, start
the engine.
6. Select the Smart Strobe feature on the J 38792-A.
7. Enter the recorded frequency of the disturbance as the
initial frequency for strobe operation.
8. Have an assistant place the transmission in NEUTRAL or
PARK.
9. Slowly increase the engine RPM to the level recorded
during duplication of the disturbance, then maintain that
speed.
10
10. Using the J 38792-25, check each of the suspected
accessory pulleys to determine if any of them is related to
the frequency of the disturbance.
Check each of the accessory systems, both engaged and
under maximum load and disengaged or under minimum
load.
11. Allow the engine to idle, then place the transmission in
DRIVE.
12. Slowly increase the engine RPM to the level recorded
during duplication of the disturbance, then maintain that
speed closely.
13. Using the J 38792-25, check each of the suspected
accessory pulleys to determine if any of them is related to
the frequency of the disturbance.
Check each of the accessory systems, both engaged and
under maximum load and disengaged or under minimum
load.
14. Turn OFF the ignition.
Did you identify an engine driven accessory system as being
related to the frequency of the disturbance?
Action
Engine Mechanical:
Yes
Go to "Vibration
Go to Step 11
Diagnostic Aids: "
1D-47
No