Symptom Related Diagnostic Procedures

Symptom Chart

High-speed shake
Possible Source(s):
- Wheel end vibration
- Engine/gearbox/transfer box
- Driveline
Action(s) to take:
- GO to Pinpoint Test A.

Tip-in moan
Possible Source(s):
- Air cleaner
- Power steering (PS)
- Powertrain
- Engine mounts
- Exhaust system
Action(s) to take:
- GO to Pinpoint Test B.

Idle boom/shake/vibration, or shudder
Possible Source(s):
- Cable(s)/hoses(s)
- Engine mounts
- Exhaust system
- Belt/pulleys
Action(s) to take:
- GO to Pinpoint Test C.

Wheel end vibration analysis
Possible Source(s):
- Suspension/front or rear wheel drive half shaft and joints
- Tires/wheels
- Wheel bearings
- Front or rear wheel drive half shaft joint boots
Action(s) to take:
- GO to Pinpoint Test D.

Non-axle noise
Possible Source(s):
- Trim/mouldings
- A/C system
- Accessories
Action(s) to take:
- GO to Pinpoint Test E.