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Rattling noises coming from underneath the car

Tiny
BASLER_H96
  • MEMBER
  • 2008 NISSAN ALTIMA
  • 2.5L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 92,600 MILES
When car is on lots of rattling noise is coming from under the car. I was told it is my heat shield. It is getting louder and more frustrating. Now I have noticed there is almost like a gurgling sound when driving and idling coming from under the hood. I can hear it inside the car.
I know the 2008 Nissan Altima is a little on the louder side with their exhaust but this isn't it.
When I got under the car with it running I didn't see anything noticeable that could be making all this noise.
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Saturday, March 2nd, 2019 AT 3:43 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,716 POSTS
Hi and thanks for using 2CarPros.

First, make sure the motor oil is clean and full. Now, a heat shield can be noisy and rattle. However, I don't know for sure that is the problem. Can you record the sound and upload it for me to hear? If I hear it, I should be better able to recognize the sound.

In the interim, here is a link that discusses engine and related noises. Take a look through it to see if it helps.

https://www.2carpros.com/articles/engine-noises

Let me know.

Take care,

Joe
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Saturday, March 2nd, 2019 AT 6:16 PM

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