It sounds like you might have a rod bearing, cracked piston or a blown handbasket between two cylinders. Can you please shoot a quick video with your phone so I can hear the engine noise? That way I can tell for sure what's going on. You can upload it here with your response. We can start by doing a compression test. This guide can help you:
Please go over this guide and report back. As far as the "tensioner pulley is squeaking" please start another question, we handle one problem per thread.
Tuesday, September 27th, 2022 AT 11:09 AM