The Taurus Rattle

I have a 2001 Taurus in pretty good shape.

It started a rattle sound from under the hood about a month ago.

I had the car tuned, and it runs like a champ, but the rattle remains.

I’ve checked the obvious things, oil levels, loose parts, etc., but nothing obvious, and I can’t locate the source of the sound.

The rattle sounds slightly better when the car is warm, but doesn’t disappear.

Any thoughts?

catalytic converter falling apart in the exhaust system.put this on a rack and check exhaust system

A long shot, but check the hood hinge bolts. This caused a horrendous rattle in my 2000 Blazer. If they are loose, tighten them up or wedge a piece of cardboard into the hinge to see if that makes difference.

If the Taurus is pinging try mid-grade or premium gas. My wife’s 91 Taurus needed mid-grade gas as it got older.

Ed B.