Rattlesnake sound above 2.5k

SchumiF399 · 10-06-2020, 09:25 AM

I had a rattling noise coming from my Z a few months back. It would not do it cold but got progressively worse while it heat up. I got under the car and with a mechanic’s stethoscope found the sound coming from my passenger side cat. It struck me odd since the car had ~39~40k miles at the time, but I took it into the dealership and they replaced it under warranty. You have 8 years warranty on the cats.

Habofro · 10-06-2020, 10:50 AM

Considering that it gets better once the car is warm, it doubt that it would be the cat. It really sounds like something metalic rubbing against each other.

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10-06-2020, 09:25 AM	#1 (permalink)
SchumiF399 Base Member Join Date: Apr 2018 Location: California Posts: 38 Drives: 2012 370z Rep Power: 8	I had a rattling noise coming from my Z a few months back. It would not do it cold but got progressively worse while it heat up. I got under the car and with a mechanic’s stethoscope found the sound coming from my passenger side cat. It struck me odd since the car had ~39~40k miles at the time, but I took it into the dealership and they replaced it under warranty. You have 8 years warranty on the cats.

10-06-2020, 10:50 AM	#2 (permalink)
Habofro Base Member Join Date: Jul 2020 Location: Quebec Posts: 8 Drives: 2010 Nissan 370Z M6 Rep Power: 5	Considering that it gets better once the car is warm, it doubt that it would be the cat. It really sounds like something metalic rubbing against each other.