Suzuki XL7 2007 Service Manual page 1030

2C-3 Rear Suspension:
Vibration Analysis - Hub and/or Axle Input
Test Description
The numbers below refer to the step numbers on the
diagnostic table:
2.
This test will determine the effect of turning input on the
vibration.
6.
This test will determine the effect of an initial heavy
torque load on the vibration.
7.
Damaged or worn wheel drive shafts may cause a noise
or vibration that may be transferred into the passenger
compartment.
8.
Step
WARNING
!
Refer to Road Test Caution.
Has the Vibration Analysis - Road Testing table been
1 completed?
1. Operate the vehicle at the speed of the vibration concern.
2. While maintaining the concern speed, drive the vehicle
through slow, sweeping turns - first in one direction, then
in the other direction.
3. Observe the vehicle for changes in the vibration
disturbance.
4. Select a smooth, level surface, such as an empty parking
2
lot or a remote road.
5. While maintaining the vehicle at the concern speed if
possible, drive the vehicle through sharp turns; 360
degrees - first in one direction, then in the other direction.
6. Observe the vehicle for changes in the vibration
disturbance.
Did the characteristics of the vibration change significantly—
become worse or go away—during these steps?
Did you hear a clicking noise and/or feel a shudder during
3
these steps?
4 Did you hear a growling noise during these steps?
5 Did you hear a popping noise during these steps?
1. With the vehicle at a stand-still, apply the regular brake
and place the transmission in the lowest forward gear.
NOTE
Do not accelerate to the point of causing the drive
wheels to squeal, slip or hop, this would obscure
6 the results of the test.
2. Release the regular brakes and accelerate aggressively to
32 km/h (20 mph).
3. Observe the vehicle for changes in the vibration
disturbance.
Did you feel a shudder or shaking during these steps?
Diagnostic Information and Procedures
Action
Damaged or worn wheel bearings may cause a noise or
vibration that may be transferred into the passenger
compartment.
9.
Damaged or worn suspension components may cause a
noise or vibration that may be transferred into the
passenger compartment.
10.
Damaged or worn powertrain mounts and/or exhaust
mounts may cause a noise or vibration that may be
transferred into the passenger compartment.
11.
Incorrect trim height may cause binding and/or
interference between components that may produce a
vibration.
Yes
Go to Step 2
Go to Step 3
Go to Step 7
Go to Step 8
Go to Step 9
Go to Step 7
No
Go to "Vibration
Analysis - Road
Testing: "
Go to Step 6
Go to Step 4
Go to Step 5
Go to Step 13
Go to "Vibration
Diagnostic Aids: "