1995 es300 rattling motor

[Moonman333]

I've had a persistent rattle, first it would only happen at low rpms then would quit when I revved up and altogether once it was running temp. Then it started only happen within the first few seconds of starting then stopping. But the rattle now has gotten to the point where it doesn't want to start or run and it sounds like if i continue to drive it it would surely break down. The sound is coming from left side of motor by the timing chain.