Rattle when pulling away

[Paul1971]

Hi,sometimes when I pull away I hear a metal on metal rattle but once I get going it stops,sounds like it’s coming from rear passenger side ,been to garage and had exhaust and heat shield checked and all good , anyone with any ideas??

[FROSTYBALLS]

Moved to the Prius club.

[TonyHSD]

Hi, 

yes exhaust is the first thing and most common source of rattles in these cars. It might be the exhaust itself having a broken bracket or heat shield loosen, I am sure that the mechanics just missed to see it. Second visit to the garage or perhaps another place or diy looking under the car may reveal the issue. Rear heat shield and brackets are difficult to spot. The easiest way is to set the car in maintenance mode, force the engine to rise rpm so the vibrations can  match the frequency that the rattling starts and touch each shield by hand and you will catch it, you need to wear a gloves though and someone to press accelerator for you.  Rear right wheel may needs to be removed to look behind there is a bracket that holds rear silencer that might be broken and might be difficult  to see it under the car, also the heat shields going bad at this area too. Hear some pictures with arrows to show where to look. Good luck  👍