Engine noise – Connecting rod noise
Perform troubleshooting referring to the followings when ECM has detected no DTC and no abnormality has been found in Visual Inspection:M13A with VVT and Engine Basic Inspection:M13A with VVT .
Condition Possible Cause Action
Engine noise – Connecting rod noise
Before checking mechanical noise, make sure that: Specified spark plug is used. Specified fuel is used.
Worn piston, ring cylinder bore
Worn rod bearing
Worn crank pin
Loose connecting rod nuts
Low oil pressure
“Low Oil Pressure” under Engine Symptom Diagnosis:M13A with VVT