Diagnostic Aids
Excessive vibration from sources other than the engine could cause DTC P0300 to set. The following are possible sources of vibration:
- A tire or wheel that is out of round or out of balance
- Variable thickness brake rotors
- A unbalanced or damaged driveline condition
- Certain rough road conditions
- Worn or damaged accessory drive component or belt
For an intermittent condition, refer to Intermittent Conditions .