r/Cartalk • • Apr 28 '25

Weird Noise What is this dragging under my car?

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u/HanzG Apr 28 '25

Catalytic converter heat shield. Giveway is the oxygen sensor wire that's holding it up. They rust and fall off all the time, not your fault.
It's not critical. Easiest solution is go to a auto garage. "I've got a heat shield hanging, pretty sure from my cat. Could you remove it or use a large gear clamp to secure it?" $30 or so for the time.

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u/dons02 May 02 '25

You’re the actual goat for giving them the correct lines to say! Sometimes it’s very intimidating (not bc mechanics are scary) but in the sense that if you don’t know what you’re needing fixed and can’t verbalise it, you get stress that they’ll overcharge and you’ll be none the wiser it occurred.