previous experience with 4.6 modular motors 01,02 , and 03 had issues with the tensioners , they sound like a sewing machine . best bet is to pull the front covers off of the motor to inspect , more then likely you will find them worn through and if you do a lab on your oil you will find metal and plastic in your oil if the tensioners are worn
we had this issues in a lot of squad cars from that era in our villages fleet .
we had this issues in a lot of squad cars from that era in our villages fleet .