2000 Toyota Avalon XLS engine trouble

Hi,

Thanks for your prompt response. I guess “grinding” noise is not the most accurate description. It’s more of a rattling noise, like when an empty shopping cart rolls on a concrete pavement (but much lighter/softer). Other details:

  • All the parts have been maintained/replaced according to the manual.
  • There is a check engine light on.
  • No engine oil loss.
  • No smoke coming out of the pipe.

Thanks!