G6 L4-2.4L VIN B (2006)
Step 1 - Step 9
Drive Belt Vibration Diagnosis
Drive Belt Vibration Diagnosis
Diagnostic Aids
The accessory drive components can have an affect on engine vibration, such as, but not limited to, the A/C system over charged, the power steering
system restricted or the incorrect fluid, or an extra load on the generator. To help identify an intermittent or an improper condition, vary the loads on
the accessory drive components.
Test Description
The numbers below refer to the step numbers on the diagnostic table.
2. This test is to verify that the symptom is present during diagnosing. Other vehicle components may cause a similar symptom such as the exhaust
system, or the drivetrain.
3. This test is to verify that the drive belt or accessory drive components may be causing the vibration. When removing the drive belt, the water pump
may not be operating and the engine may overheat. Also DTC's may set when the engine is operating with the drive belt removed.
4. The drive belt may cause a vibration. While the drive belt is removed, this is the best time to inspect the condition of the belt.
6. Inspecting of the fasteners can eliminate the possibility that a wrong bolt, nut, spacer, or washer was installed.
8. This step should only be performed if the fan is driven by the drive belt. Inspect the engine cooling fan for bent, twisted, loose, or cracked blades.
