toyota prius hybrid engine rattling, shaking, misfiring heavily, No DTC stored in the ECU.
The troubleshooting procedure is shown in this video, how we diagnosed and rectified the symptoms, this is tutorial video we diagnosed and rectified engine rattling, shaking, and misfiring.

Disclaimer:
this video only contains tips and recommendations that could be useful when carrying out vehicle repairs or replacement parts, STANHOPE AUTO REPAIR CENTRE WARDAK is not liable for any damage, harm injury or property damage incurred while carrying out repairs or replacement that are a result of incorrect use or misinterpretation of the provided information purposes only and does not guarantee achievement of specific result. The user is personally liable for incorrect use of repair equipment, tools or vehicle parts, in particular, when this use poses the risk of injury. STANHOPE AUTO REPAIR CENTRE WARDAK strongly recommends being careful and adhering to the safety rules when doing any repair or replacement.