Step
| Action
| Value
| Yes
| No
|
DEFINITION: Any
noise emitted from the rear of the vehicle that is induced by VEHICLE SPEED
or DRIVING TERRAIN as related to the rear suspension.
|
1
|
Important: You may have to compare this vehicle to an identical vehicle in order
to determine if the customer's concern is a normal operating characteristic
of the vehicle.
Attempt to duplicate the noise. Road test the vehicle.
Is an abnormal noise present?
| --
|
Go to Step 2
| System OK
|
2
|
- Shift the transmission into Park.
- Turn the ignition off.
- Bounce the rear of the vehicle in order to duplicate the noise.
Is the complaint noise heard?
| --
|
Go to Step 3
|
Go to Step 4
|
3
|
- Bounce the rear of the vehicle. Use a stethoscope in order to
locate the source of the noise.
- Repair or replace the suspect components as necessary.
Has the repair been performed.
| --
|
Go to Step 1
| --
|
4
|
- Raise and support the vehicle. Refer to
Lifting and Jacking the Vehicle
in General Information.
- Inspect all of the rear suspension components for any damage.
Are any components damaged?
| --
|
Go to Step 5
|
Go to Step 6
|
5
| Repair or replace any damaged components.
Did you complete the repair?
| --
|
Go to Step 1
| --
|
6
|
- Inspect the tires for proper inflation. Refer to
Tire Inflation Pressure Specifications
in Maintenance and Lubrication.
Correct the tire inflation pressure as necessary.
- Inspect the tires for unusual wear. Refer to
Tire Diagnosis - Irregular or Premature Wear
in Tires and Wheels.
Does either tire exhibit unusual tread wear?
| --
|
Go to Step 7
|
Go to Step 9
|
7
|
- Rotate the tires. Refer to
Tire Rotation
in Tires and Wheels.
- Road test the vehicle.
Is the noise now emitted from the front of the vehicle?
| --
|
Go to Step 8
|
Go to Step 9
|
8
| Replace the tires that are causing
the noise.
Has the repair been performed.
| --
|
Go to Step 1
| --
|
9
| Ensure that the park brake cable and the spare tire are secured properly.
Did you service any components?
| --
|
Go to Step 1
|
Go to Step 10
|
10
| Ensure that all of the wheel nuts are tightened to the correct specification.
Tighten as necessary. Refer to
Fastener Tightening Specifications
in Tires and Wheels.
Did you tighten any of the wheel nuts?
| --
|
Go to Step 1
|
Go to Step 11
|
11
|
- Raise and support the vehicle. Refer to
Lifting and Jacking the Vehicle
in General Information.
- Use your hand to push and pull the shock absorbers.
Is either shock absorber loose?
| --
|
Go to Step 12
|
Go to Step 14
|
12
|
- Inspect the shock absorber fasteners for the correct fastener
tightening specification. Tighten as necessary. Refer to
Fastener Tightening Specifications
in Rear Suspension.
- Push and pull the shock absorber with your hands.
Is the shock absorber loose?
| --
|
Go to Step 14
|
Go to Step 1
|
13
| Replace the loose or worn shock absorber. Refer to
Shock Absorber Replacement
in Rear Suspension.
Did you complete the repair?
| --
|
Go to Step 1
| --
|
14
| Use your hands in order to push and pull on the rear axle tie rod.
Is the rear axle tie rod loose?
| --
|
Go to Step 15
|
Go to Step 18
|
15
|
- Inspect the rear axle tie rod fasteners. Tighten as necessary.
Refer to
Fastener Tightening Specifications
in Rear Suspension.
- Push and pull on the rear axle tie rod with your hands.
Is the rear axle tie rod loose?
| --
|
Go to Step 17
|
Go to Step 1
|
17
| Replace the rear axle tie rod as necessary.
Did you complete the repair?
| --
|
Go to Step 1
| --
|
18
| Use your hands in order to push and pull on the rear axle trailing arm.
Is either rear axle trailing arm loose?
| --
|
Go to Step 19
|
Go to Step 21
|
19
|
- Inspect the rear axle trailing arm fasteners for the correct fastener
tightening specification. Tighten as necessary. Refer to
Fastener Tightening Specifications
in Rear Suspension.
- Push and pull on the rear axle trailing arm with your hands.
Is either rear axle trailing arm loose?
| --
|
Go to Step 20
|
Go to Step 1
|
20
| Replace any worn or loose rear axle trailing arm bushings.
Did you complete the repair?
| --
|
Go to Step 1
| --
|
21
|
- Use an on-vehicle wheel balancer in order to spin the rear wheels.
- Increase the wheel speed until the noise is at the most audible
level.
Important: Do not allow the stethoscope to contact any moving components.
- Use a stethoscope in order to locate the source of the noise.
Does either wheel bearing exhibit excessive noise?
| --
|
Go to Step 22
|
Go to Step 7
|
22
| Replace the wheel bearings. Refer to
Rear Wheel Bearing and Hub Replacement
in Rear Suspension.
Did you complete the repair?
| --
|
Go to Step 1
| --
|
